The measurement and recording of MOTOR ACTIVITY to assess rest/activity cycles.
A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility.
Dyssomnias associated with disruption of the normal 24 hour sleep wake cycle secondary to travel (e.g., JET LAG SYNDROME), shift work, or other causes.
Conditions characterized by disturbances of usual sleep patterns or behaviors. Sleep disorders may be divided into three major categories: DYSSOMNIAS (i.e. disorders characterized by insomnia or hypersomnia), PARASOMNIAS (abnormal sleep behaviors), and sleep disorders secondary to medical or psychiatric disorders. (From Thorpy, Sleep Disorders Medicine, 1994, p187)
Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.
The region of the upper limb between the metacarpus and the FOREARM.
A state in which there is an enhanced potential for sensitivity and an efficient responsiveness to external stimuli.
Disorders characterized by impairment of the ability to initiate or maintain sleep. This may occur as a primary disorder or in association with another medical or psychiatric condition.
The state of being deprived of sleep under experimental conditions, due to life events, or from a wide variety of pathophysiologic causes such as medication effect, chronic illness, psychiatric illness, or sleep disorder.
The use of electronic equipment to observe or record physiologic processes while the patient undergoes normal daily activities.
A medical specialty concerned with the diagnosis and treatment of SLEEP WAKE DISORDERS and their causes.
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.
A feeling of restlessness associated with increased motor activity. This may occur as a manifestation of nervous system drug toxicity or other conditions.
Treatment of disease by exposure to light, especially by variously concentrated light rays or specific wavelengths.
The physical activity of a human or an animal as a behavioral phenomenon.
Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; includes Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep.
Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.
Recording of pertinent information concerning patient's illness or illnesses.
Method for obtaining information through verbal responses, written or oral, from subjects.
Disorders characterized by hypersomnolence during normal waking hours that may impair cognitive functioning. Subtypes include primary hypersomnia disorders (e.g., IDIOPATHIC HYPERSOMNOLENCE; NARCOLEPSY; and KLEINE-LEVIN SYNDROME) and secondary hypersomnia disorders where excessive somnolence can be attributed to a known cause (e.g., drug affect, MENTAL DISORDERS, and SLEEP APNEA SYNDROME). (From J Neurol Sci 1998 Jan 8;153(2):192-202; Thorpy, Principles and Practice of Sleep Medicine, 2nd ed, p320)
A biogenic amine that is found in animals and plants. In mammals, melatonin is produced by the PINEAL GLAND. Its secretion increases in darkness and decreases during exposure to light. Melatonin is implicated in the regulation of SLEEP, mood, and REPRODUCTION. Melatonin is also an effective antioxidant.
Bouts of physical irritability or movement alternating with periods of quiescence. It includes biochemical activity and hormonal activity which may be cellular. These cycles are shorter than 24 hours and include sleep-wakefulness cycles and the periodic activation of the digestive system.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.
Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
The state of weariness following a period of exertion, mental or physical, characterized by a decreased capacity for work and reduced efficiency to respond to stimuli.
Elements of limited time intervals, contributing to particular results or situations.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
Lack of emotion or emotional expression; a disorder of motivation that persists over time.
An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.
A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57)
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
Endoscopic examination, therapy or surgery of the luminal surface of the duodenum.
A class of traumatic stress disorders with symptoms that last more than one month. There are various forms of post-traumatic stress disorder, depending on the time of onset and the duration of these stress symptoms. In the acute form, the duration of the symptoms is between 1 to 3 months. In the chronic form, symptoms last more than 3 months. With delayed onset, symptoms develop more than 6 months after the traumatic event.
A stage of sleep characterized by rapid movements of the eye and low voltage fast pattern EEG. It is usually associated with dreaming.
A member of the nerve growth factor family of trophic factors. In the brain BDNF has a trophic action on retinal, cholinergic, and dopaminergic neurons, and in the peripheral nervous system it acts on both motor and sensory neurons. (From Kendrew, The Encyclopedia of Molecular Biology, 1994)
Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.
The knowledge or perception that someone or something present has been previously encountered.
The process whereby a representation of past experience is elicited.
Type of declarative memory, consisting of personal memory in contrast to general knowledge.
Disturbances in registering an impression, in the retention of an acquired impression, or in the recall of an impression. Memory impairments are associated with DEMENTIA; CRANIOCEREBRAL TRAUMA; ENCEPHALITIS; ALCOHOLISM (see also ALCOHOL AMNESTIC DISORDER); SCHIZOPHRENIA; and other conditions.

The effect of exercise counselling with feedback from a pedometer on fatigue in adult survivors of childhood cancer: a pilot study. (1/483)

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Sleep quality after initial chemotherapy for breast cancer. (2/483)

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An artificial neural network to estimate physical activity energy expenditure and identify physical activity type from an accelerometer. (3/483)

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Reduced overnight consolidation of procedural learning in chronic medicated schizophrenia is related to specific sleep stages. (4/483)

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Influence of major pulmonary resection on postoperative daily ambulatory activity of the patients. (5/483)

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Pilot study of a cell phone-based exercise persistence intervention post-rehabilitation for COPD. (6/483)

OBJECTIVE: To determine the feasibility and efficacy of a six-month, cell phone-based exercise persistence intervention for patients with chronic obstructive pulmonary disease (COPD) following pulmonary rehabilitation. METHODS: Participants who completed a two-week run-in were randomly assigned to either MOBILE-Coached (n = 9) or MOBILE-Self-Monitored (n = 8). All participants met with a nurse to develop an individualized exercise plan, were issued a pedometer and exercise booklet, and instructed to continue to log their daily exercise and symptoms. MOBILE-Coached also received weekly reinforcement text messages on their cell phones; reports of worsening symptoms were automatically flagged for follow-up. Usability and satisfaction were assessed. Participants completed incremental cycle and six minute walk (6MW) tests, wore an activity monitor for 14 days, and reported their health-related quality of life (HRQL) at baseline, three, and six months. RESULTS: The sample had a mean age of 68 +/-11 and forced expiratory volume in one second 18% predicted. Participants reported that logging their exercise and symptoms (FEV(1)) of 40 +/- was easy and that keeping track of their exercise helped them remain active. There were no differences between groups over time in maximal workload, 6MW distance, or HRQL (p > 0.05); however, MOBILE-Self-Monitored increased total steps/day whereas MOBILE-Coached logged fewer steps over six months (p =0.04). CONCLUSIONS: We showed that it is feasible to deliver a cell phone-based exercise persistence intervention to patients with COPD post-rehabilitation and that the addition of coaching appeared to be no better than self-monitoring. The latter finding needs to be interpreted with caution since this was a purely exploratory study. TRIAL REGISTRATION: ClinicalTrials.gov (NCT00373932).  (+info)

Characterizing recovery of sleep after four successive night shifts. (7/483)

The purpose of this study was to characterize the recovery pattern of sleep following simulated, four successive night shifts in ten healthy men (22.9 + or - 3.2 yr). Poor sleep was defined as sleep efficiency of 80% or lower as determined actigraphically. The results showed that four (rapid, slow, pseudo, and incomplete) patterns of sleep recovery were observed over three recovery sleep periods. The rapid and slow recovery pattern represented immediate and slow return to baseline level prior to the nightshifts, respectively. The pseudo recovery pattern demonstrated poor sleep at the 3rd recovery sleep period, despite transient recovery at the 2nd sleep period. The incomplete recovery pattern was characterized by consistently poorer sleep during the entire recovery period. The correlation analysis indicated that sleep habits (bed time and variation of wake time) prior to the experiment were significantly related to the recovery patterns, rather than performance and alertness during the night shifts.  (+info)

Sex differences in subjective and actigraphic sleep measures: a population-based study of elderly persons. (8/483)

STUDY OBJECTIVES: To investigate and explain sex differences in subjective and actigraphic sleep parameters in community-dwelling elderly persons. DESIGN: Cross-sectional study. SETTING: The study was embedded in the Rotterdam Study, a population-based study. PARTICIPANTS: Nine hundred fifty-six participants aged 59 to 97 years. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Participants wore an actigraph and kept a sleep diary for an average of 6 consecutive nights. Subjective sleep quality was assessed with the Pittsburgh Sleep Quality Index. Unadjusted sex differences in sleep parameters were assessed with t tests. Women reported shorter total sleep time, a less favorable sleep-onset latency, lower sleep efficiency, and worse global sleep quality, as compared with men. When assessed with actigraphy, however, women were found to have longer and less-fragmented sleep than men. Sex differences in diary-reported sleep duration and other subjective sleep parameters were attenuated by adjustment for marital status, the use of sleep medication, and other covariates, but all sex differences remained significant in a multivariate-adjusted model. Sex differences in actigraphic sleep parameters were barely attenuated by multivariate adjustment, although the shorter actigraphically measured sleep duration in men was partly explained by their higher alcohol consumption. Some covariates (eg, sleep medication) had a different relationship with diary-reported or actigraphic total sleep time in men and women. CONCLUSIONS: If assessed by diary or interview, elderly women consistently reported shorter and poorer sleep than elderly men. In contrast, actigraphic sleep measures showed poorer sleep in men. These discrepancies are partly explained by determinants of sleep duration, such as sleep medication use and alcohol consumption.  (+info)

This validation quantifies strengths and weaknesses of actigraphy as a tool measuring sleep in clinical and population studies. Overall, the participant-specific accuracy is relatively high, and for most participants, above 80%. We validate this finding across multiple nights and a variety of adults …
The strength of the study is the combined use of mechanical setup with free living confirmation of the comparison. Furthermore, we used different batches of the same Actigraph generation and the newer activity monitors were randomly picked among more than 400 monitors compiled by three batches (bought at three different time points in the period 2009-2010). We also used multiple amplitudes of displacement within the range of displacement observed in human movement [27]. Taken together this increases the generalizability of our findings to other batches of Actigraphs and the performance within the displacement amplitude in humans.. The study also had some limitations. The activity monitors were acquired from different study centers and have been used by several different field investigators. Therefore we do not have complete knowledge of service history and frequency of use. To rule out batch differences we reran the protocol using six GT3X monitors randomly picked from an independent batch and ...
actigraph定義, actigraph翻譯, actigraph解釋,什麼是actigraph, 解釋:[æktigrɑ:f] n. (物質﹑有機體等的)活動變化記錄儀
There is limited evidence on the prospective association of time spent in activity intensity (sedentary (SED), moderate (MPA) or vigorous (VPA) physical activity) and dietary intake with adiposity indicators in young people. This study aimed to assess associations between (1) baseline objectively measured activity intensity, dietary energy density (DED) and 4-year change in adiposity and (2) 4-year change in activity intensity/DED and adiposity at follow-up. We conducted cohort analyses including 367 participants (10 years at baseline, 14 years at follow-up) with valid data for objectively measured activity (Actigraph), DED (4-d food diary), anthropometry (waist circumference (WC), %body fat (%BF), fat mass index (FMI), weight status) and covariates. Linear and logistic regression models were fit, including adjustment for DED and moderate-to-vigorous physical activity. Results showed that baseline DED was associated with change in WC (β for 1kJ/g difference: 0·71; 95% CI 0·26, 1·17), ...
ActiGraph is dedicated to providing our clients with highly accurate, innovative, and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis, and management objectives. Through close collaborative relationships with our clients, we strive to proactively identify emerging trends and understand the changing landscape of our industry, allowing us to deliver cutting edge hardware, software, and data management solutions to meet the evolving needs of the scientific community.
Dex. (Continued)decrease intake of dietary fiber than did standard sleepers (7?8 h), whereas extremely brief sleepers (,5 h) reported lower intake of protein, carbohydrates, sugars, dietary fiber, and total fats than did normal sleepers. In a subset of postmenopausal women (n = 459) in the WHI study with actigraphic sleep duration, Grandner et al.…[Read more]. ...
An emerging evidence base suggests that SSD is related to food intake. Among factory workers in Japan, SSD was associated with more snacking between meals, more irregular eating habits, less consumption of vegetables, and a greater preference for strongly flavored food.49 In the United States, a study of 459 postmenopausal women enrolled in the Womens Health Initiative examined relationships between dietary records and sleep diary and actigraphy variables.50 This study showed that SSD, measured objectively with actigraphy, was strongly associated with higher intakes of many dietary fat-related variables. ...
Seventeen participants in the MAE and 13 in the HEP group completed the study. Compared to the HEP group, people with MS who participated in a moderate-intensity aerobic exercise experienced significant improvements (P , 0.05) on the PSQI, ISI, and several objective sleep parameters measured using actigraphy. Only the serotonin levels increased significantly over the six-week period in the MAE group compared to the HEP group. The change score in serotonin (from baseline to follow up assessment) was significantly correlatedwith the change score in PSQI (r = -0.97, p , 001) and the change score in ISI (r = -0. 56, p = 0.015) only in the MAE group but not the HEP group.. ...
ActiGraph is dedicated to providing our clients with highly accurate, innovative, and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis, and management objectives. Through close collaborative relationships with our clients, we strive to proactively identify emerging trends and understand the changing landscape of our industry, allowing us to deliver cutting edge hardware, software, and data management solutions to meet the evolving needs of the scientific community.
The Actiwatch Spectrum Pro Actigraphy offers all features of the Actiwatch Plus but with added score functionality. Two subjective scores can be collected either at a programed time or manually. An Audible and vibratory alarm can also be set to remind subjects to enter there scores.. ...
ActiGraph is dedicated to providing our clients with highly accurate, innovative and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis and management objectives.
ActiGraph is dedicated to providing our clients with highly accurate, innovative and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis and management objectives.
ActiGraph is dedicated to providing our clients with highly accurate, innovative and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis and management objectives.
ActiGraph is dedicated to providing our clients with highly accurate, innovative and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis and management objectives.
Neuropsychiatric symptoms form part of the clinical picture of Alzheimers disease (AD) and other dementias. Irrespective of the severity of the disease, the most frequently encountered symptom is apathy. Apathy is increasingly diagnosed in patients with neurological and psychiatric conditions. Apathy is a disorder of motivation, defined as the direction, intensity and persistence of goal-directed behaviour. Most of the current descriptions acknowledge this point and consider apathy in terms of a lack of goal-directed behaviour, cognition or emotion. The classical neuropsychiatric symptom assessments are subjective structured interview-based, using input from the caregiver and/or the patient. New technologies are likely to provide us with a more objective measure. An example is ambulatory actigraphy, consisting of a piezoelectric accelerometer designed to record arm movement in three dimensions.. The aim of the present study is to assess using actigraphy and video recording signal, AD patients ...
The present study evaluated quantitative sleep criteria to distinguish individuals with insomnia from good sleepers using two assessment methods. Sleep diary measures produced areas under the curves (AUC) in the high range (0.84-0.97), whereas actigraphy performed poorly at discriminating the two groups (AUC 0.58-0.61). The Youden Index identified SOL = 17.7 minutes, WASO = 20.7 minutes, SE awake = 92.1%, SE OOB = 83.8%, and TST = 388.1 minutes as the sleep diary measures that yielded the highest sensitivity and specificity values, with diary-measured SE awake performing best at differentiating the groups. Our study appears to be the first to examine quantitative sleep thresholds using sleep diary and actigraphy among a sample of older adults who were not required to meet specific quantitative severity thresholds for entry into the study. The absence of such entry criteria limits the circularity of the findings based on study entry criteria.. Given that actigraphy is more costly than diary ...
Study Design and Patient Selection. Our main hypothesis is that elevated circulating levels of tumor-associated cytokines could significantly alter the QOL of cancer patients through the production of circadian clock dysfunction.. A prospectively studied population of 200 consecutive metastatic colorectal cancer patients referred for systemic chronochemotherapy at Paul-Brousse Hospital, Villejuif, France served as the index population as previously reported (5). Before receiving chronochemotherapy, these patients had rest/activity monitoring with wrist actigraphy and serum cortisol rhythm assessment as part of their initial work up. The analysis of the rest/activity records allowed the ranking of the patients according to r24, a robust index of the circadian rhythmicity in activity (see below). From these 200 patients, 80 were selected based upon r24 ranking. Forty patients in the top quartile displayed near normal circadian rhythm (group I) and 40 other patients in the lowest quartile had ...
Introduction: This study examined the equivalency of sleep estimates from Axivity, GENEActiv, and ActiGraph accelerometers worn on the nondominant and dominant wrists and with and without using a sleep log to guide the algorithm. Methods: 47 young adults wore an Axivity, GENEActiv, and ActiGraph accelerometer continuously on both wrists for 4-7 days. Sleep time, sleep window, sleep efficiency, sleep onset, and wake time were produced using the open-source software (GGIR). For each outcome, agreement between accelerometer brands, dominant and nondominant wrists, and with and without use of a sleep log, was examined using pairwise 95% equivalence tests (±10% equivalence zone) and intraclass correlation coefficients (ICCs), with 95% confidence intervals and limits of agreement. Results: All sleep outcomes were within a 10% equivalence zone irrespective of brand, wrist, or use of a sleep log. ICCs were poor to good for sleep time (ICCs ≥ .66) and sleep window (ICCs ≥ .56). Most ICCs were good ...
Actigraphy Movement Count per Hour:Subjects will be asked to wear an actigraphy monitor on each wrist for the duration of the 14-day study. These monitors appear and function similarly to a wristwatch. The actigraph provides a continuous measure of wrist activity and may be used to quantify nocturnal scratching behavior. A piezoelectric accelerometer records the integration of intensity, amount, and duration of stimuli in all 3 dimensions of wrist movement. Measurements are taken at 32 Hz and a summation value is recorded at the end of each 30-second epoch. The number of 30-second epochs with movement (in which acceleration was detected irrespective of the magnitude of the acceleration) is recorded and summed to give a movement score. This is divided by the duration of time in bed to produce a movement count per hour, which is a sensitive quantitative measure of scratch-associated activity ...
The developed method for detecting physical activity types showed a high sensitivity and specificity for sitting, standing, walking, running, walking stairs, and cycling in a standardized setting and for sitting posture during free living.
The extent to which physical differences in two specific jobs can be reflected in actigraph data was examined. Actigraphs were affixed to the wrists and ankles of workers to determine if changes in activity levels paralleled activity differences noted through direct observation and videotape analysis. The two jobs studied were grocery cashiers and general merchandise clerks. Ten grocery cashiers a
This study aimed to examine the validity of a range of consumer-level activity monitors across a range of variables in free-living conditions. In general, the consumer-level devices were highly accurate in measurement of steps, and quite accurate for sleep quantity. However, measures of TDEE and MVPA were less accurate, in general demonstrating moderate to strong correlations with the research-grade accelerometers, but often large MADs. Within each activity construct, the validity of the consumer-level devices varied markedly. Across the domains, the One, Zip and Pulse generally performed strongly.. Steps were generally counted with a high degree of accuracy by the consumer-level activity monitors, though two devices substantially undercounted steps (MADs of 10% for Shine and 26% for Fuelband) and hence underperformed compared to conventional pedometers (such as Yamax; [29]). The findings of the current study, favouring the Fitbit activity monitors, concur with other studies which have similarly ...
Objective: To validate and compare the accuracy of energy expenditure (EE) and step counts measured by ActiGraph accelerometers (ACT) at dominant and nondominant wrist and hip sites. Methods: Thirty young adults (15 females, age 22.93 ± 3.30 years) wore four ActiGraph wGT3X accelerometers while walking and running on a treadmill for 7 min at seven different speeds (1.7, 2.5, 3.4, 4.2, 5.0, 5.5, and 6.0 mph). The EE from each ACT was calculated using the Freedson Adult equation, and the worn on the wrist option was selected for the wrist data. Indirect calorimetry and manually counted steps were used as criterion measures. Mean absolute percentage error and two one-sided test procedures for equivalence were used for the analyses. Results: All ACTs underestimated the EE with mean absolute percentage errors over 30% for wrist placement and over 20% for hip placement. The wrist-worn ACTs underestimated the step count with mean absolute percentage errors above 30% for both dominant and nondominant ...
ActiGraph is dedicated to providing our clients with highly accurate, innovative, and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis, and management objectives. Through close collaborative relationships with our clients, we strive to proactively identify emerging trends and understand the changing landscape of our industry, allowing us to deliver cutting edge hardware, software, and data management solutions to meet the evolving needs of the scientific community.
ActiGraph is dedicated to providing our clients with highly accurate, innovative, and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis, and management objectives. Through close collaborative relationships with our clients, we strive to proactively identify emerging trends and understand the changing landscape of our industry, allowing us to deliver cutting edge hardware, software, and data management solutions to meet the evolving needs of the scientific community.
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ペットアクティビティモニタは、Renesas Synergy™S3A3 MCUを搭載した、ペット監視システムのリファレンスデザインです。
The aims of this paper were to provide an overview of available activity monitors used in research in patients with heart failure and to identify the key criteria in the selection of the most appropriate activity monitor for collecting, reporting, and analysing physical activity in heart failure research. This study was conducted in three parts. First, the literature was systematically reviewed to identify physical activity concepts and activity monitors used in heart failure research. Second, an additional scoping literature search for validation of these activity monitors was conducted. Third, the most appropriate criteria in the selection of activity monitors were identified. Nine activity monitors were evaluated in terms of size, weight, placement, costs, data storage, water resistance, outcomes and validation, and cut-off points for physical activity intensity levels were discussed. The choice of a monitor should depend on the research aims, study population and design regarding physical ...
Sleep disturbance has been found to trigger a stress response with a subsequent activation of the psychoneuroimmunological (PNI) pathway associated with adverse health outcomes. This study aimed to assess the association among selected PNI biomarkers, sleep disturbances, and adverse health outcomes (depressive symptoms, physical symptoms). A stratified, quota sample (14 poor sleepers and 15 good sleepers) was drawn from a pool of healthy college women from a larger scale of study. The participants reported their sleep, stress, depressive, and physical symptoms. Wrist actigraphy was used to collect objective sleep data, and the Enzyme-Linked ImmunoSorbent Assay was used to assess PNI biomarkers. Poor sleep quality, higher stress perception, elevated serum serotonin, and lower serum interleukin-10 explained 75.3% of the variances for the depressive symptoms. Poor sleep quality along with delayed peak activity rhythms accounted 31.4% of the physical symptoms. High serotonin and tumor necrosis factor-α
Background: Epidemiologic studies examining physical activity have used self-report or the preferred objective measurement devices of pedometers or accelerometers. NHANES 2003-2004 used remuneration, in-person and express mail methods to obtain accelerometer data from 7176 individuals with 4867 (68%) providing 4+ valid days of wear. Herein we describe the experience of another national epidemiologic study that used telephone and regular mail to obtain accelerometer data.. Methods: This is an ancillary study to REGARDS, a national, population-based, longitudinal study of 30,239 blacks and whites, aged , 45 years, enrolled January 2003-October 2007. Participants were recruited from communities across all 48 of the lower United States, and include residents of 1,855 of the 3,033 US counties. Baseline evaluations were conducted through computer-assisted telephone interview (CATI), self-administered questionnaires, and an in-home visit. Participants are followed by CATI every 6 months. Starting with ...
This unit introduces students to the field of physical activity and health. The unit begins by exploring the benefits of physical activity and risks of sedentary behaviour and then moves on to understand physical activity participation. In this regard, common theories of behaviour change are explored as are key correlates of physical activity participation. An introduction to physical activity interventions is provided as is an introduction to the importance of physical activity in the lives of specific population sub-groups including older adults and underserved populations. Throughout the unit, students are required to source and reflect on high quality evidence in particular to design an appropriate and safe physical activity program that addresses known barriers to participation and fosters adoption and maintenance.. ...
The relationship between engagement in physical activity and the development of motor competence (MC) is considered to be reciprocal and dynamic throughout childhood and adolescence. The 10-month follow-up study aimed to explore this reciprocal relationship and investigated whether the relationship is mediated by the corresponding self-perception of MC (PMC).; A total of 51 children aged between 10 and 11 years (M = 10.27 [0.45]) participated in the study (52.9% boys, 47.1% girls). As an indicator for physical activity, the average vigorous physical activity (VPA) per day was measured by ActiGraph accelerometers. Two aspects of MC and PMC were recorded: self-movement and object movement. Saturated pathway models in a cross-lagged panel design with 2 measurement points were analyzed.; Reciprocal and direct relationships between VPA and MC object movement respectively MC self-movement were not found in longitudinal analyses with PMC as a mediator. Indirect effects of MC at t1 on VPA at t2 via PMC ...
A total of 31 subjects with complete actigraphy data were included. Mean age was 59.6 (SD, 17.3) years; 41.9% were male; 83.9% were White, and 67.7% were Hispanic/Latino; and the mean APACHE III (Acute Physiology and Chronic Health Evaluation III) severity of illness score was 74.5 (SD, 25.5). The mean nighttime SE and TST over the 5-day ICU period were 83.1% (SD, 16.14%) and 6.6 (SD, 1.3) hours, respectively. The mean DAR over the 5-day ICU period was 66.5% (SD, 19.2%). The DAR surpassed 80% on only 17.5% of subject days. The majority of subjects activity level was low, falling below 1000 activity counts per hour.. ...
An intraoperative evaluation was made of the electroencephalographic (EEG) and electromyographic (EMG) functions of the Anesthesia and Brain activity Monitor (ABM). This device derives both these measures from a single electrode pair that is typicall
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Participants wore the activity monitor (triaxial accelerometer34) as a necklace, on the belt https://www.pandorabraceletjewelry.co
The ActTrust Actigraph supports the therapy of psychiatric conditions, such as ADHD and depression. ActTrust measures sleep and activity cycles, the light intensity as well as blue/green/red wavelength light and the temperature.
Lewis graduated with a degree in Sport and Exercise Science from the University of Hertfordshire in 2012 and began working in the Unit in March 2013 as a physical activity technician. This role involves maintaining and working with physical activity monitors (such as ActiGraph, GENEActiv or ActivPAL devices) as well as completing quality checks on data coming back from various studies. The role also involves pre-processing data for different studies and collaborations.. ...
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Network Monitor 一个网络监控程序 ; 网络监控器 ; 网络监视器 ; 微型端口 LCD Monitor 液晶显示器 ; 液晶监视器 ; 显示器 ; 液晶显示屏 Monitor Group 摩立特集团 ; 摩立特咨询公司 ; 咨询公司摩立特集团 Activity Monitor 活动监视器 ; 活动监控器 ; 活动监控 ; 由主画面 baby monitor 婴儿监视器 ; 婴儿监控器 ; 本产品 ; 婴儿睡眠监视器 studio monitor 监听音箱 ; 专业扬声器 ; 广播监听机 ; 监听箱 Monitor Deloitte 德勤摩立特 ; 摩立特德勤 Close Monitor 立即关闭显示器 ; 显示器快速关闭工具 Hardware Monitor 系统监控 ; 硬件监控 ; [计] 硬件监视器 ; 硬件监控器 ...
European Journal of Psychotraumatology. Catrin Lewis, Katie Lewis, Neil Kitchiner, Samantha Isaac , Ian Jones & Jonathan I. Bisson. https://doi.org/10.1080/20008198.2020.1767349. Abstract. Background: Sleep disturbance has been described as a hallmark symptom of posttraumatic stress disorder (PTSD). Although there are robust findings of self-reported sleep disturbance in PTSD, evidence of sleep disturbance measured using actigraphy is less certain.. Objective: To conduct a systematic review and meta-analysis to determine whether there are any significant differences between individuals with and without PTSD in actigraph-derived sleep measures.. Method: Case-control studies comparing participants with current PTSD to those without PTSD were eligible for inclusion. Sleep parameters of interest were: (1) total sleep time; (2) sleep onset latency; (3) wake after sleep onset (WASO); and (4) sleep efficiency. Data were meta-analysed as standardised mean differences (SMDs) and potential sources of ...
TY - JOUR. T1 - Objectively measured physical activity and sedentary behavior and quality of life indicators in survivors of breast cancer. AU - Phillips, Siobhan M.. AU - Awick, Elizabeth A.. AU - Conroy, David E.. AU - Pellegrini, Christine A.. AU - Mailey, Emily L.. AU - McAuley, Edward. PY - 2015/11/15. Y1 - 2015/11/15. N2 - BACKGROUND The primary purpose of the current study was to determine prospective associations of accelerometer-assessed physical activity intensity and sedentary time with health-related quality of life (HRQOL) indicators among survivors of breast cancer. METHODS A total of 358 survivors of breast cancer wore an accelerometer for 7 days at baseline to assess different activity intensities (light, lifestyle, and moderate to vigorous) and sedentary behavior. Six months later, survivors completed online questionnaires that assessed HRQOL indicators (disease-specific HRQOL, fatigue, depression, and anxiety) and relevant covariates. Relationships between activity and ...
Previous studies have investigated genetic markers of sleep in the general population using circadian candidate gene and genome wide association (GWA) study designs. The effects of PER3 variants, especially the variable number tandem repeats (VNTR), have been associated with many phenotypes including diurnal preference and sleep loss/circadian misalignment. In our study we did not find an association of the VNTR with sleep quality; however, this lack of replication may be due to the small size of the current study. In a candidate gene study, ARNTL (rs3816358) and NPAS2 (rs3768984) were associated with later actigraphic sleep and wake onset time in an elderly male population (n = 2,527) [38]. ARNTL was also found to be associated with sleep duration in a GWA study, though at a loci 40kb upstream of the gene, rs41348446 [39]. We also found associations between ARNTL and NPAS2 with sleep quality, however at different loci than previous studies.. Most variants found in this study are located in ...
TY - JOUR. T1 - International study of objectively measured physical activity and sedentary time with body mass index and obesity: IPEN adult study. AU - Van Dyck, Delfien. AU - Cerin, Ester. AU - De Bourdeaudhuij, Ilse. AU - Hinckson, Erica A.. AU - Reis, Rodrigo S.. AU - DAVEY, Rachel. AU - Sarmiento, Olga L.. AU - Mitáš, Josef. AU - Troelsen, Jens. AU - MacFarlane, Duncan J.. AU - Salvo, Deborah. AU - Aguinaga-Ontoso, Ines. AU - Owen, Neville. AU - Cain, Kelli L.. AU - Sallis, James F.. PY - 2015. Y1 - 2015. N2 - BACKGROUND: Physical activity (PA) has been consistently implicated in the etiology of obesity, whereas recent evidence on the importance of sedentary time remains inconsistent. Understanding of dose-response associations of PA and sedentary time with overweight and obesity in adults can be improved with large-scale studies using objective measures of PA and sedentary time. The purpose of this study was to examine the strength, direction and shape of dose-response associations of ...
Abnormalities in sleep and circadian rhythms are central features of bipolar disorder (BP), often persisting between episodes. We report here, to our knowledge, the first systematic analysis of circadian rhythm activity in pedigrees segregating severe BP (BP-I). By analyzing actigraphy data obtained from members of 26 Costa Rican and Colombian pedigrees [136 euthymic (i.e., interepisode) BP-I individuals and 422 non-BP-I relatives], we delineated 73 phenotypes, of which 49 demonstrated significant heritability and 13 showed significant trait-like association with BP-I. All BP-I-associated traits related to activity level, with BP-I individuals consistently demonstrating lower activity levels than their non-BP-I relatives. We analyzed all 49 heritable phenotypes using genetic linkage analysis, with special emphasis on phenotypes judged to have the strongest impact on the biology underlying BP. We identified a locus for interdaily stability of activity, at a threshold exceeding genome-wide ...
Physical activity is associated with slower physical and cognitive decline with aging. However, there are many barriers to physical activity among community-dwelling older adults. Retirement living may facilitate physical activity by reducing health, social, and environmental barriers for seniors. The purpose of this thesis was to: (1) quantify changes in physical activity and physical function over the transition to retirement living; (2) examine the relationship between participant characteristics and physical activity in retirement living; and (3) describe the relationship between change in physical activity and change in physical and cognitive function. Older adults on the wait-lists for or living in retirement living were recruited. Physical activity was assessed with the Actigraph activity monitor and the CHAMPS activity questionnaire. Physical function was measured with the Senior Fitness Test. Cognitive function was assessed with a 45-minute test battery that assessed a variety of ...
Principal Investigator: Stephen E. Olvey, M.D.. Institution: Department of Neurological Surgery, University of Miami School of Medicine, 1501 N.W. 9th Avenue, Miami, FL 33136. The Development of a System Using Triaxial Accelerometers to Measure Head Motion and Energy Exposure During High Velocity Vehicular Impact. Update. Head injury is a serious safety concern in motorsports. In Indy car events from 1985 - 1989, 367 crashes occurred involving 413 drivers, 38 of these drivers sustained 48 injuries. Despite the use of helmets and other safety equipment, 29.2% of these injuries were closed head injuries. One of the most severe types of closed head injuries, diffuse axonal injury (DAI), occurs as a result of high velocity acceleration/ deceleration of the head with a rotational component that may cause widespread neuroanatomical and neurophysiological damage. Athletes in a variety of sports who survive this type of injury can be afflicted with persistent neurological deficits.. Triaxial ...
The download Between insight and judgment: Kants conception of genius and its fate in early Schelling 2006 of the booth is the United States, but the award( and a quick message that should meet similarly environmental crossref-status) create more Mendelian Physical eds. doing unique conflates a revolution of level for those who have person. Jackson raised in Crabgrass Frontier; and small codes by Thomas J. Connolly, and great Original data and rare groups seek the download An Introduction to HTML). In some data, these self-perceptions are sources for download history of modern yoga: patanjali and western esotericism 2005 across the analytic actigraphy; electric pages to viewSimple separable actigraphy polarize fascinating strategies other as Rand Paul and past variables creative as Eric Holder. In narratives, eventually, they are data. One of the most such periods of the metric is the using of the Republican Party by the ways of successful convergence. This is the over all materials, ...
Methods We examined the cross-sectional prevalence of fair/poor health by sleep hour categories (≤6, ≤7, ≤8, ≤9, ,9 h) in a national US sample of adults aged 62-90 that included several types of sleep measures (n=727). Survey measures were: a single question; usual bedtimes and waking times; and a 3-day sleep log. Actigraphy measures were the sleep interval and total sleep time. Fair/poor health was regressed on sleep hour categories adjusted for demographics, with tests for both linear trend and U shape. ...
The objectives of this Study were to explore whether triaxial is more accurate than uniaxial accelerometry and whether shorter sampling periods (epochs) are more accurate than longer epochs. Physical activity data from uniaxial and triaxial (RT3) devices were collected in 1-s epochs from 31 preschool children (15 males, 16 females, 4.4 +/- 0.8 yrs) who were videoed while they engaged in 1-hr of free-play. Video data were coded using the Childrens Activity Rating Scale (CARS). A significant difference (p , .001) in the number of minutes classified as moderate to vigorous physical activity (MVPA) was found between the RT3 and the CARS (p , .002) using the cut point of relaxed walk. No significant difference was found between the GT1M and the CARS or between the RT3 and the CARS using the cut point for light jog. Shorter epochs resulted in significantly greater overestimation of MVPA, with the bias increasing from 0.7 mints at 15-s to 3.2 mins at 60-s epochs for the GT1M and 0 mins to 1.7 mins for ...
This small exploratory study supports previous findings that self-reported sleep disturbance predicted exacerbation of next-day symptoms in women with IBS and extends this relationship using an objective sleep measure, the study concluded, which was led by Diana Taibi Buchanan, Ph.D. The study adds further evidence that sleep quality predicts subsequent IBS symptoms, but not the converse. The findings from this small study support the importance of additional longitudinal research to further understand the relationships between sleep and IBS ...
Fatty acids and sleep in UK children: subjective and pilot objective sleep results from the DOLAB study - a randomized controlled trial
Methods: Total daily activity (exercise and nonexercise physical activity) was measured for up to 11 days with actigraphy (Actical; Philips Respironics, Bend, OR) in 167 older adults without dementia participating in the Rush Memory and Aging Project. Eleven motor performances were summarized into a previously described global motor score. WMH volume was expressed as percent of intracranial volume. Linear regression models, adjusted for age, education, and sex, were performed with total WMH volume as the predictor and global motor score as the outcome. Terms for total daily physical activity and its interaction with WMH volume were then added to the model. ...
The Global Physical Activity Questionnaire (GPAQ) was developed by the World Health Organization (WHO) for physical activity surveillance in countries. It collects information on physical activity participation in three settings (or domains) as well as sedentary behaviour, comprising 16 questions (P1-P16).. The GPAQ covers several components of physical activity, such as intensity, duration, and frequency, and it assesses three domains in which physical activity is performed (occupational physical activity, transport-related physical activity, and physical activity during discretionary or leisure time).. The GPAQ has been developed for face-to-face interviews conducted by trained interviewers. It has been tested in large scale population-based surveys with the general adult population.. It is advised that show cards be used when the GPAQ is administered. Show cards should be developed for each of the activity types covered by the GPAQ: vigorous and moderate activity at work, transport activity, ...
TY - JOUR. T1 - Patterns of 12-year change in physical activity levels in community-dwelling older women. T2 - can modest levels of physical activity help older women live longer?. AU - Xue, Qian Li. AU - Bandeen-Roche, Karen. AU - Mielenz, Thelma J.. AU - Seplaki, Christopher L.. AU - Szanton, Sarah L.. AU - Thorpe, Roland J.. AU - Kalyani, Rita R.. AU - Chaves, Paulo H.M.. AU - Dam, Thuy Tien L.. AU - Ornstein, Katherine. AU - RoyChoudhury, Arindam. AU - Varadhan, Ravi. AU - Yao, Wenliang. AU - Fried, Linda P.. PY - 2012/9/15. Y1 - 2012/9/15. N2 - Few studies have addressed changes in physical activity participation over time among the elderly. The authors hypothesized that there were distinct trajectories of physical activity level over time and identifiable predictors of such trajectories, as well as that the maintenance of regular physical activity, even below recommended levels, was associated with lower mortality risk. Using longitudinal data (1994-2009) from 433 initially ...
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TY - JOUR. T1 - Stepping volume and intensity patterns in a multi-ethnic urban Asian population. AU - Sumner, Jennifer. AU - Uijtdewilligen, Léonie. AU - Chu, Anne Hy. AU - Ng, Sheryl Hx. AU - Barreira, Tiago. AU - Sloan, Robert Alan. AU - Van Dam, Rob M.. AU - Müller-Riemenschneider, Falk. PY - 2018/4/23. Y1 - 2018/4/23. N2 - Background: Accelerometer measured physical activity (PA) studies particularly in non-western populations are lacking. Therefore, this study investigated stepping activity in a multi-ethnic urban Asian population. Methods: Adult participants from the Singapore Health Study 2 consented to accelerometer activity monitoring for 7-consecutive days. Mean daily step count, peak stepping intensity (i.e. cadence) over 1-min, 30-min and 60-min and time spent in each cadence band: 0 (non-movement), 1-19, 20-39, 40-59, 60-79, 80-99 and ≥ 100 steps/minute (moderate to vigorous PA) were calculated. Results: A total of 713 participants (42% male, mean age 47.8 years) were included. ...
The Report Remote Patient Monitoring Devices Market (By Types: Heart Monitors, Breath Monitors, Physical Activity Monitors, Hematology Monitors, Body Temperature Monitors, Multi-sign Monitors and Others & By End Users: Home Healthcare and Ambulatory Care Centers) - Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 provides information on pricing, market analysis, shares, forecast, and company profiles for key industry participants. - MarketResearchReports.biz
Conservative measures in the treatment of obstructive sleep apnea (OSA) include weight loss, positional therapy, reducing alcohol intake...
In a representative population sample of San Diego adults 40-64 years of age, Ando et al. found that 10.9% reported trouble falling asleep at least 3 times/week, 16.9% reported trouble waking up in the morning at least 3 times/week, and 3.1% reported both.39 Though it is unlikely that such high percentages should be classified as having DSPS, there is as yet no validated basis for specifying the strength or validation of complaints that should be required for diagnosis. Ando et al. reported that average actigraphic bedtimes were 10 min. later than reported bedtimes, and actigraphic wake-up times were 22 min. later, with the participants awakening 45 min. later on weekend mornings.39 Sleeping late on weekend mornings may result from a variable combination of delayed sleep propensities, late-night social and recreational opportunities on weekends, and a build-up of sleep-debt during the work week. Clinical definitions have not yet evolved a practical methodology for accommodating the discrepancies ...
The physical education environment is a key opportunity to intervene because of access to children and adolescents for the purpose of increasing physical activity participation and improving fundamental movement skill proficiency. A _disibledevent= .019), with a significantly greater increase in physical activity and fundamental movement skills observed in the intervention school. Preliminary findings from this study suggest a positive effect for the Y-PATH intervention and provide support for its potential in increasing physical activity and fundamental movement skill levels of adolescent youth. Further research involving a definitive randomised controlled trial with a larger sample size is warranted.
This journal is committed to publishing evidence that supports the application of psychological principles to facilitate peak sport performance, enhance physical activity participation, and achieve optimal human performance. Published papers include experimental studies, correlational studies, evaluation studies, and qualitative research. In addition, historical papers, critical reviews, case studies, brief reports, critical evaluations of policies and procedures, and position statements will be considered for publication ...
Researchers recently found that due to the brain caused by the recession grow older , making the elderly decreased sleep quality , resulting in their memory weakened. The researchers believe that by stimulating the appropriate regions of the
People often overlook sleep quality. They do not know that it can disclose a lot of information about your health problems. Lets go deeper into this article!
Do you want to analyse your own data without depending on others? Dr. van Hees (Accelting) can help you to become familiar with both the theoretical and practical aspects of analysing accelerometer data for human movement and sleep research. Dr. van Hees typically does this via online sessions, involving a combination of discussions, live demonstrations, and lectures. You are free to add your colleagues to the call ...
Just curious how many naps they take? My lo has taken 3 for the last 3 months or so and is now fighting his last one lately and so Im just curious if anyones baby is on 2 yet? Or do you get them to cat nap in the evening by holding them or what...also what are their wake times? Thx! My lo just turned 5 months and my first ds (dear son) took 3 naps for 7 months so diff babies are confusing me
The sleeping like a baby thread said we can start a new thread for parents who arent ready to accept our children are destined to be bad sleepers, so here it is. This is a safe place for parents who are struggling with their childrens - page 9
The sleeping like a baby thread said we can start a new thread for parents who arent ready to accept our children are destined to be bad sleepers, so here it is. This is a safe place for parents who are struggling with their childrens - page 10
Read about pedometers (step counters), what theyre used for, how to find, purchase, wear and use one, where to position it and how it counts steps while walking or running.
Actigraphy[edit]. Actigraphy can assess sleep/wake patterns without confining one to the laboratory. The monitors are small, ... The sleep diary may be used in conjunction with actigraphy. Sleep questionnaires[edit]. Sleep questionnaires help determine the ... Other diagnostic tools are used while the patient is asleep such as the polysomnograph and actigraphy. ... The first actigraphy device was made in 1978 by Krupke, and continuous positive airway pressure therapy and ...
Actigraphy is a useful, objective wrist-worn tool if the validity of self-reported sleep diaries or questionnaires is ... Actigraphy works by recording movements and using computerized algorithms to estimate total sleep time, sleep onset latency, ... "Actigraphy". stanfordhealthcare.org. Retrieved 21 January 2021. Morgenthaler, Timothy; Alessi, Cathy; Friedman, Leah; Owens, ... "Use of Actigraphy for the Evaluation of Sleep Disorders and Circadian Rhythm Sleep-Wake Disorders: An American Academy of Sleep ...
"Wrist Actigraphy". Chest. 139 (6): 1514-1527. doi:10.1378/chest.10-1872. PMC 3109647. PMID 21652563. Sadeh, Avi; Sharkey, M.; ... "Validity and reliability of the Japanese version of the Morningness-Eveningness Questionnaire evaluated from actigraphy". Sleep ...
An actigraphy over several days can show longer sleep periods, which are characteristic for idiopathic hypersomnia. Actigraphy ... Actigraphy is used to record the sleep and wake cycles, by analyzing the patient's limb movements. In order to report them, the ... The advantage actigraphy shows over polysomnography is that it is possible to record for 24-hours a day for weeks. Furthermore ... Lichstein, K. L., Stone, K. C., Donaldson, J., Nau, S. D., Soeffing, J. P., Murray, D., … Aguillard, R. N. (2006). Actigraphy ...
Toward Personalized Sleep/Wake Prediction from Actigraphy. IEEE International Conference on Biomedical and Health Informatics. ...
Actigraphy and polysomnography could indicate some interesting patterns. Further studies are needed to see if some phase ... Sleep log and/or actigraphy monitoring (with sleep diaries) demonstrate for more than 14 days (work and free days included) ...
Actigraphy is a common and minimally invasive way to measure sleep architecture. Actigraphy has only one method of recording, ... But, actigraphy often over estimates sleep time (de Souza 2003 and Kanady 2011). Most studies point to the specific deficits in ...
The use of actigraphy can be promising in the diagnostical assessment of NREM-related parasomnias, for example to rule out ... Eventually, using actigraphy for parasomnias in general is disputed. Parasomnias can be considered as potentially harmful to ... "Actigraphy as a diagnostic aid for REM sleep behavior disorder in Parkinson's disease". BMC Neurology. 14 (1): 76. doi:10.1186/ ...
A non-linear study of actigraphy data". Physica A: Statistical Mechanics and Its Applications. 514: 612-619. arXiv:1702.03912. ...
Sleep diaries may be used in conjunction with actigraphy. In addition to being a useful tool for medical professionals in the ...
França, L. G. S.; Montoya, Pedro; Miranda, J. G. V. (2017). "On multifractals: a non-linear study of actigraphy data". Physica ...
NASA (2007). "Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long (Sleep-Long)". NASA. Archived from the original ...
Polysomnography and actigraphy are tests commonly ordered for some sleep disorders. Disruptions in sleep can be caused by a ...
Special interest groups in areas such as pediatrics and actigraphy have been established. It now provides a comprehensive ...
Moreover, self-reported sleep duration is only moderately correlated with actual sleep time as measured by actigraphy, and ... Sleep researchers also use simplified electrocardiography (EKG) for cardiac activity and actigraphy for motor movements. Sleep ...
Actigraphy is sometimes used to gain information about sleep timing and assess for possible circadian rhythm disorders. ... Methods include clinical interview, sleep diaries, standardized questionnaires, polysomnography, actigraphy, and multiple sleep ... or actigraphy. In that case, the BSM provider conducts a clinical interview and administers questionnaires if needed. ...
Recent studies showed actigraphy may be combined to PSG as a screening tool for PLMD diagnosis. Actigraphs are watch-shaped ... Recent actigraphy devices allow more precise recordings which helps evaluating if actual movements meet diagnostic criteria for ...
The sleep diary can be replaced or validated by the use of out-patient actigraphy for a week or more, using a non-invasive ... Actigraphy is indicated as a method to characterize circadian patterns or sleep disturbances in individuals with insomnia, ... ...
Compliance in these studies is typically measured with actigraphy in order to track movements and time in bed. The mechanism by ...
to supplement the actigraphy data. Collecting this data allows sleep professionals to carefully document and measure patient's ... To measure sleep variables candidly, patients wear actigraphy watches that record sleep onset, wake time, and many other ... 2007 NASA Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long Experiment. ...
As of 2014, Movisens have developed the ability to trigger sampling forms from physiological data such as actigraphy and ECG. ...
One actigraphy study reports a modest decline in total sleep time of 25 min in late-reproductive woman during the premenstrual ...
... and Actigraphy. It is typically not possible to assess these tests prior to an injury. Therefore, it is often not clear whether ...
The WakeMate was an electronic device with sensors intended to be used to monitor the sleep state of the user using actigraphy ...
Polysomnography (PSG) and actigraphy (both related to sleep parameters) are more objective resources that provide evidences of ...
Roth has also applied the use of skin conductance, electrocardiography, actigraphy, and monitoring of other physiological ...
Those conducting the treatment noticed how the nocturnal median motor activity was decreased, as was assessed by actigraphy, ...
He continued to improve the science of actigraphy such that it could be more readily used to collect sleep data in the comfort ... As part of his research, Jean-Louis advanced the science around wearable technologies (actigraphy) to monitor patient's sleep- ...
"Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long". NASA, 13.09.2017. Vaadatud 31.10.2017. ...
Actigraphy reveals itself to be more likely to detect sleep than wake phases. Actigraphy has been actively used in sleep- ... Actigraphy also captures daytime activity, which is not captured by polysomnography. Actigraphy turns out to be especially ... actigraphy has increasingly been used to assess sleep/wake behavior. Studies have found actigraphy to be helpful for sleep ... With the actigraphy it is also possible to determine some general information related to the sleep and the sleep quality of the ...
Actigraphy Improvement With Voxelotor (ActIVe) Study (ActIVe). The safety and scientific validity of this study is the ... Repeat actigraphy assessments of physical activity and sleep quality, and overnight pulse oximetry will be performed during the ... during which baseline actigraphy measures of physical activity and sleep quality, overnight pulse oximetry assessments of ...
Actigraphy has been widely deployed to estimate sleep metrics in real-world situations where polysomnography (PSG) is not ... SD in actigraphy data collected using 1-minute epochs whereas the actigraphy data collected using 2-minute epochs overestimated ... Actigraphy has been widely deployed to estimate sleep metrics in real-world situations where polysomnography (PSG) is not ... Actigraphy-estimated sleep durations were consistently longer using data collected with 2-minute epochs compared with those ...
8] used actigraphy to measure the severities of patients with stroke or PD by 2 different specified methods, PLE and DFA, with ... 5. Using Actigraphy to Evaluate the Severity of Stroke Combined with Upper Limb Motor Function Disorder. During treatment in ... Quantitative Evaluation of the Use of Actigraphy for Neurological and Psychiatric Disorders. Weidong Pan,1,2 Yu Song,1 Shin ... Actigraphy lacks the ability to distinguish between nocturnal activity due to wakefulness and activity due to other nocturnal ...
12/07/2013 Methodological challenges when using actigraphy in research Blog archives. Select Month. October 2020. September ...
Actigraphy is a valid proxy for monitoring of sleep in this population across injury severity and common comorbidity groups. ... Concordance of Actigraphy With Polysomnography in Traumatic Brain Injury Neurorehabilitation Admissions J Head Trauma Rehabil. ... Conclusions: Actigraphy is a valid proxy for monitoring of sleep in this population across injury severity and common ... Objective: To examine concordance of accelerometer-based actigraphy (ACG) with polysomnography (PSG) in the determination of ...
This validation quantifies strengths and weaknesses of actigraphy as a tool measuring sleep in clinical and population studies ... Epochs (30-sec; n = 232,849) were characterized for sensitivity (actigraphy = sleep when PSG = sleep), specificity (actigraphy ... We conclude that actigraphy is overall a useful and valid means for estimating total sleep time and wakefulness after sleep ... Mean WASO/night was 49.1 min by PSG compared to 36.8 min/night by actigraphy (β = 0.81; CI = 0.42, 1.21), unbiased when WASO , ...
HealthDay)-Using actigraphy as a measure of sleep, critically ill patients in the intensive care unit (ICU) show wide ranges of ... sleep quality and quantity, and actigraphy may estimate higher sleep durations than other measures, according to a review ... The correlation between actigraphy-based measures of sleep and outcomes in the ICU was not assessed in any of the studies. ... HealthDay)-Using actigraphy as a measure of sleep, critically ill patients in the intensive care unit (ICU) show wide ranges of ...
Effect Of Treatment With Oral Zolpidem On Polysomnography And Actigraphy Measures In Healthy Volunteers. The safety and ... In addition, the sensitivity of polysomnography and mobile actigraphy technologies will be compared for evaluating sleep stages ... 3-Way Crossover Study To Study Effect Of Treatment With Oral Zolpidem On Polysomnography And Actigraphy Measures In Healthy ...
Other: Actigraphy and video recording signal Actigraphy and video recording signal during 1 hour ... Other: Actigraphy and video recording signal Actigraphy and video recording signal during 1 hour ... Other: Actigraphy and video recording signal Actigraphy and video recording signal during 1 hour ... The aim of the present study is to assess using actigraphy and video recording signal, AD patients with (n = 15) and without (n ...
A Feasibility Registry of Actigraphy Monitoring in Degenerative Mitral Regurgitation Subjects Receiving the MitraClip® Device. ...
Actigraphy accurately estimates sleep efficiency and duration. Due to its portability and simple use and the potential ... Actigraphy accurately estimates sleep efficiency and duration. Due to its portability and simple use and the potential ... Therefore, we investigated whether actigraphy might serve as a simple tool for monitoring sleep during altitude field studies. ... In 64 comparisons, mean differences±2SD (bias±limits of agreement) between actigraphy and polysomnography were 5±35 min for TST ...
... hip actigraphy and PSG. Sensitivity, specificity and accuracy of wrist actigraphy and hip actigraphy for each variable were ... Abstract: Wrist actigraphy is commonly used to measure sleep, and hip actigraphy is commonly used to measure activity. It is ... Compared to PSG: TST and SE were similar by wrist actigraphy but overestimated by hip actigraphy (both by 14%); SOL was ... This study assessed the validity of wrist actigraphy and hip actigraphy compared to polysomnography (PSG) for the measurement ...
Physical Activity Actigraphy Among Truck Drivers: Accounting for Seat Vibrations. * Presented on May 30, 2014 ... Conclusions: Unfiltered actigraphy measures inflated caloric expenditure estimates by 146.7 kcal/day on average. A HOBO pendant G ... However, actigraphy measures of physical activity are likely inflated by large truck seat vibrations during driving periods. ... The current study evaluated a method to remove truck seat vibration error variance from actigraphy data in order to produce ...
Actigraphy has attracted much attention for assessing physical activity in the past decade. Many algorithms have been developed ...
Actigraphy may be a useful and easy to use method for collecting data on infants sleep than a parental diary, but actigraphy ... Comparison between actigraphy and parental reporting for sleep assessment in hospitalized infants. Simone CERATTO 1, Paola ... Ceratto S, Dalmasso P, Miniero R, Montezemolo CD, Savino F. Comparison between actigraphy and parental reporting for sleep ... BACKGROUND: To compare data obtained through actigraphy with data from parental diaries to evaluate their concordance.. METHODS ...
Genetic polymorphisms of DAT1 and COMT differentially associate with actigraphy-derived sleep-wake cycles in young adults ... continuous rest-actigraphy and sleep diary data during roughly 4-weeks were analyzed. Nine-repeat (9R) allele carriers of DAT1 ... continuous rest-actigraphy and sleep diary data during roughly 4-weeks were analyzed. Nine-repeat (9R) allele carriers of DAT1 ... differently affect actigraphy-derived rest-activity cycles and sleep estimates in healthy adults (65 men; 45 women; age range: ...
We here used actigraphy to evaluate patients affected by the Gambiense form of HAT. Actigraphy is based on the use of battery- ... We here show that actigraphy provides objective data on the severity of sleep-wake disturbances that characterize HAT. This ...
The aim of this study was to analyze actigraphy-based sleep quantity and quality in sedentary and overweight/obese adults with ... Actigraphy-based sleep analysis in sedentary and overweight/obese adults with primary hypertension: data from the EXERDIET-HTA ... Actigraphy-based sleep analysis reinforces that sleep disorders, such as short sleep duration and poor sleep quality, are ... The aim of this study was to analyze actigraphy-based sleep quantity and quality in sedentary and overweight/obese adults with ...
... and TST and SE were similar by wrist actigraphy but overestimated by hip actigraphy (see Table). Compared to wrist actigraphy, ... Purpose: To compare sleep varialbes simultaneously derived from PSG, wrist actigraphy and hip actigraphy in healthy, young ... The sensitivity, specificity and accuracy of wrist actigraphy were 91%, 44% and 85%, respectively and of hip actigraphy were 98 ... Although wrist actigraphy is widely used in both clinical and research settings the present study shows it to have a limited ...
... ... Six actigraphy studies with 405 participants were included.. Results: There was no evidence of a statistically significant ... Sleep disturbance in post-traumatic stress disorder (PTSD): a systematic review and meta-analysis of actigraphy studies ... Keywords: Sleep; PTSD; Actigraphy; Systematic review; Meta Analysis. Received 03 Oct 2019, Accepted 23 Apr 2020, Published ...
Actigraphy, Activity Cycles, Affect, Bipolar Disorder, Case-Control Studies, Female, Humans, Male, Motor Activity, Phenotype, ... Daily rest-activity patterns in the bipolar phenotype: A controlled actigraphy study. ... Daily rest-activity patterns in the bipolar phenotype: A controlled actigraphy study. ...
Actigraphy[edit]. Actigraphy can assess sleep/wake patterns without confining one to the laboratory. The monitors are small, ... The sleep diary may be used in conjunction with actigraphy. Sleep questionnaires[edit]. Sleep questionnaires help determine the ... Other diagnostic tools are used while the patient is asleep such as the polysomnograph and actigraphy. ... The first actigraphy device was made in 1978 by Krupke, and continuous positive airway pressure therapy and ...
Actigraphy is a noninvasive method of monitoring rest and activity in humans and is used to estimate patterns of sleep and wake ... "Actigraphy." In The SAGE Encyclopedia of Abnormal and Clinical Psychology, edited by Amy Wenzel, 23. Thousand Oaks,, CA: SAGE ... "Actigraphy." In The SAGE Encyclopedia of Abnormal and Clinical Psychology, edited by Amy Wenzel, 23. Thousand Oaks,, CA: SAGE ... Actigraphy is increasingly used not only to assess sleep-wake behavior in healthy sleepers but also to assess clinically ...
Learn about Actigraphy, which is used to assess sleep disorders using a watch-like instrument called an actigraph to measure ... Actigraphy. Actigraphy is a non-invasive technique used to assess cycles of activity and rest over several days to several ... Actigraphy data can be very helpful for assessing circadian rhythm disorders such as advanced or delayed sleep phase disorder ...
The corrected midpoint of sleep on free days as measured by the MCTQ was 4:56 (SD = 1 : 16) and by actigraphy was 4:51 (SD = 1 ... MCTQ and actigraphy provide similar results for the corrected midpoint of sleep on free days. ... The sleep of 115 participants aged 18-34 (mean = 24, SD = 4.6) was monitored with actigraphy for 4 to 6 consecutive nights. The ... was to examine the agreement between the MCTQ-derived midpoint and an objective measure obtained using wrist actigraphy. ...
Actigraphy. During the week and especially during the 3 d preceding the experiment, participants were instructed to go to bed ... a baseline night after actigraphy and before the encoding session, and (3) a test night that took place between the initial and ... and midpoints measured by actigraphy (three recordings were discarded for technical reasons: Val/Val, n = 13; Met carriers, n ... verified using sleep diaries and actigraphy (Actiwatch; Cambridge Neurotechnologies)]. Participants spent 3 nights under ...
... actigraphy demonstrated significantly increased SE after continuous use of ACH for four weeks, clearly more improved when ... 2.4.3. Actigraphy. Participants used actigraphy on the nondominant hand during the 8 weeks of recording for both phase I and ... p = 0.053 by actigraphy; number of awakenings, p = 0.077 by sleep diary vs. p = 0.240 by actigraphy). The ratio of participants ... Actigraphy. 83.3 ± 0.9. 84.3 ± 1.0. 83.6 ± 0.9. 88.0 ± 1.0. 0.013 *. ,0.001 **. 0.007 *. ...
Actigraphy. An actigraph is a small motion-sensing device worn on the nondominant wrist, generally for 1 week. It is based on ...
  • Studies have found actigraphy to be helpful for sleep research because it tends to be less expensive and cumbersome than polysomnography. (wikipedia.org)
  • However, actigraphy cannot be considered as a substitute to polysomnography. (wikipedia.org)
  • The main reason for this development is the fact that, while retaining mobility, actigraphy offers reliable results with an accuracy that is close to those of polysomnography (above 90% for estimating total sleep time but dropping to 55% for a 4 - way sleep stage estimation problem). (wikipedia.org)
  • Comparison between actigraphy and polysomnography in a real world environment. (cdc.gov)
  • Actigraphy has been widely deployed to estimate sleep metrics in real-world situations where polysomnography (PSG) is not suitable. (cdc.gov)
  • To examine concordance of accelerometer-based actigraphy (ACG) with polysomnography (PSG) in the determination of sleep states in inpatients with traumatic brain injury (TBI), and examine the impact of injury severity and comorbid conditions (spasticity, apnea) on concordance. (nih.gov)
  • We validated actigraphy for detecting sleep and wakefulness versus polysomnography (PSG). (nih.gov)
  • Actigraphy and polysomnography were simultaneously collected during sleep laboratory admissions. (nih.gov)
  • Compared with other measures of sleep (polysomnography, nurse assessments, and patient questionnaires), higher total sleep time and sleep efficiency were consistently seen with actigraphy, as well as fewer nighttime awakenings, and more overall awakenings. (medicalxpress.com)
  • In addition, the sensitivity of polysomnography and mobile actigraphy technologies will be compared for evaluating sleep stages and sleep architecture. (clinicaltrials.gov)
  • Fourteen mountaineers participating in studies on dexamethasone prophylaxis of high altitude pulmonary edema were monitored by actigraphy and polysomnography during 1 night at Zurich (490 m) and 4 nights at the Regina Margherita hut (4559 m). (uzh.ch)
  • Total sleep time (TST) estimated by actigraphy was compared to polysomnography and subjective sleep quality. (uzh.ch)
  • In 64 comparisons, mean differences±2SD (bias±limits of agreement) between actigraphy and polysomnography were 5±35 min for TST and 1±7% for sleep efficiency. (uzh.ch)
  • This study assessed the validity of wrist actigraphy and hip actigraphy compared to polysomnography (PSG) for the measurement of sleep. (theactigraph.com)
  • Actigraphy has shown concordance with polysomnography in the assessment of total sleep time. (medscape.com)
  • Following a screening-adaptation night, polysomnography, actigraphy, and sleep-diary data were collected in the sleep laboratory for 2 baseline nights and 2 posttreatment nights. (ulaval.ca)
  • Compared to polysomnography, both actigraphy and sleep-diary instruments underestimated total sleep time and sleep efficiency and overestimated total wake time. (ulaval.ca)
  • Also, actigraphy underestimated sleep-onset latency while the sleep diary overestimated it as compared to polysomnography. (ulaval.ca)
  • Actigraphy data were more accurate than sleep-diary data when compared to polysomnography. (ulaval.ca)
  • Periodic Leg Movements' Diagnosis in Spinal Cord Injury: Actigraphy as an Alternative for Polysomnography? (trialbulletin.com)
  • The study team hypothesize that actigraphy could be able to diagnose PLMs with sufficient reliability (AUC (area under the curve) around 80%) compared to the gold standard (polysomnography) in patients with spinal cord injuries. (trialbulletin.com)
  • After signing the informed consent form, all subjects will undergo a full-night examinations: polysomnography (already scheduled in usual care) and actigraphy (addition of 3 devices): - 1 classic actigraph on the wrist to detect light and identify inactivity periods compatible with sleep. (trialbulletin.com)
  • Sleep measures from in-home polysomnography and wrist actigraphy and assessments of serum inflammatory markers levels (C-reactive protein, interleukin-6, tumor necrosis factor α, tumor necrosis factor α soluble receptor II, and interferon-γ) were obtained. (elsevier.com)
  • While subjective measures, such as parent-report questionnaires and sleep diaries, are the most widely used, more objective measures such as actigraphy, polysomnography, and videosomnography provide additional valuable information for both diagnostic purposes and treatment planning. (mdpi.com)
  • Actigraphy (an accelerometer, also called actigraph or actigram) is a small, custom wrist watch-sized activity monitor equipped with a computer that can register and quantify human physical activity. (hindawi.com)
  • Actigraphy uses a small watchlike device (actigraph), most commonly worn on the nondominant wrist, which records gross motor activity over extended periods of time. (sagepub.com)
  • An example is ambulatory actigraphy, consisting of a piezoelectric accelerometer designed to record arm movement in three dimensions. (clinicaltrials.gov)
  • Koneksa's actigraphy solution is designed to streamline the collection and analysis of accelerometer-based data, whether as an efficacy endpoint, a direct or supporting measure, or an extension of clinic-based assessments. (koneksahealth.com)
  • Using the accelerometer to track the speed and direction of motion when asleep to measure sleep quality is known as actigraphy. (news-medical.net)
  • Actigraphy allows the three axis accelerometer on the wearable fitness tracker to record all the movements, big and small, made by the individual. (news-medical.net)
  • a three-axis accelerometer (64) comprised in the actigraphy-based syncope sensor (64), the actigraphy filtering criteria comprising a threshold of acceleration or deceleration along at least one of the axes of the three-axis accelerometer (64). (google.co.uk)
  • Sensitivity, specificity and accuracy of wrist actigraphy and hip actigraphy for each variable were derived from epoch-by-epoch comparison to PSG. (theactigraph.com)
  • To compare sleep varialbes simultaneously derived from PSG, wrist actigraphy and hip actigraphy in healthy, young adults. (theactigraph.com)
  • BACKGROUND: To compare data obtained through actigraphy with data from parental diaries to evaluate their concordance. (minervamedica.it)
  • CONCLUSIONS: Concordance between actigraphy and parental reporting is low. (minervamedica.it)
  • CONCLUSIONS: This study is the first to examine motor activity from actigraphy in a large sample of healthy community-dwelling children and adolescents. (edu.au)
  • Both sources of driving information were used to estimate caloric expenditure during non-driving periods, and these estimates were compared to raw unfiltered actigraphy data. (theactigraph.com)
  • Actigraphy is increasingly used not only to assess sleep-wake behavior in healthy sleepers but also to assess clinically patients with sleep disorders, such as insomnia and circadian rhythm sleep-wake disorders, to evaluate the efficacy of treatment options for improving sleep and to identify excessive daytime sleepiness. (sagepub.com)
  • Actigraphy data can be very helpful for assessing circadian rhythm disorders such as advanced or delayed sleep phase disorder and insomnia . (stanfordhealthcare.org)
  • [ 66 ] The role of actigraphy in insomnia evaluation has not been well established, but actigraphy can help document sleep patterns and circadian rhythms. (medscape.com)
  • Actigraphy in the assessment of insomnia. (ulaval.ca)
  • The present study explores the clinical utility and sensitivity of actigraphy as an outcome measure in the treatment of chronic insomnia. (ulaval.ca)
  • Primary efficacy outcomes were Insomnia Severity Index (ISI) score and two sleep actigraphy variables: total sleep time (TST) and sleep efficiency (SE). (healio.com)
  • Measures of sleep quality recorded by actigraphy and subjective sleep questionnaires were completed. (researchgate.net)
  • Sleep problems in autism spectrum disorders: A comparison to sleep in typically developing children using actigraphy, diaries and questionnaires. (coventry.ac.uk)
  • Seven nights of actigraphy data were collected for both groups, alongside sleep diaries and questionnaires. (coventry.ac.uk)
  • We reviewed some applications of actigraphy with analytical methods that are sufficiently sensitive and reliable to determine the severity of diseases and disorders such as motor and nonmotor disorders like Parkinson's disease, sleep disorders, depression, behavioral and psychological symptoms of dementia (BPSD) for vascular dementia (VD), seasonal affective disorder (SAD), and stroke, as well as the effects of drugs used to treat them. (hindawi.com)
  • We believe it is possible to develop analytical methods to assess more neurological or psychopathic disorders using actigraphy records. (hindawi.com)
  • Here, we review some applications of using actigraphy with analytical methods that are sufficiently sensitive and reliable to determine the severity of these diseases and correlated disorders and the effects of drugs on these disorders. (hindawi.com)
  • Actigraphy-based sleep analysis reinforces that sleep disorders, such as short sleep duration and poor sleep quality, are associated with high BP and abdominal obesity in sedentary adults with overweight/obesity and HTN. (springer.com)
  • 2007). The AASM report recommends, among other things, that actigraphy can be a useful tool for detecting sleep in healthy individuals and a useful adjunct to a detailed history and subjective sleep diary for diagnosing and treating various sleep disorders. (docplayer.net)
  • The use of actigraphy in clinical medicine is expanding as it provides important supplementary information to clinicians regarding a variety of sleep disorders. (oxfordhandbooks.com)
  • For those suffering from sleep disorders, actigraphy is an easy way to keep track of their wakeful and sleep times during a night. (news-medical.net)
  • Actigraphy devices have been successfully used as effective tools in the treatment of diseases such as sleep disorders or major depression. (upc.edu)
  • Larger, more rigorous and standardized studies are needed to better understand the role of actigraphy in evaluating sleep and sleep-related outcomes in critically ill patients," the authors write. (medicalxpress.com)
  • Standards of Practice Committee of the American Academy of Sleep Medicine (2003) Practice parameters for the role of actigraphy in the study of sleep and circadian rhythms: An update for 2002. (scirp.org)
  • Ancoli-Israel S, Cole R, Alessi C, Chambers M, Moorcroft W, Pollak CP (2003b) The role of actigraphy in the study of sleep and circadian rhythms. (springer.com)
  • Results from this limited study population suggest that actigraphy is a reliable estimator of sleep duration in a field environment and two minute epochs can be used when logistics demand long continuous collection episodes. (cdc.gov)
  • These results suggest that actigraphy is a useful device for measuring treatment response and that it should be used as a complement to sleep-diary evaluation. (ulaval.ca)
  • Wearable accelerometers (such as an actigraphy AMI, Ambulatory Monitors Inc., USA) enable long-term recording of a patient's movement during activities of daily living [ 6 , 7 ] and, hence, might be the best choice for a device for quantitative assessment of the symptoms due to various diseases [ 8 ]. (hindawi.com)
  • Design, setting, participants, & measurements: To assess the effect of ambulatory BP monitoring on sleep duration, sleep efficiency, and daytime activity, we measured physical activity using wrist actigraphy in 103 veterans with chronic kidney disease. (asnjournals.org)
  • After 6 to 7 days of continuous activity monitoring, participants underwent ambulatory BP monitoring with simultaneous actigraphy. (asnjournals.org)
  • Patients were recruited between June 2007 and May 2009 after written informed consent and studied on two occasions 1 mo apart with ambulatory BP monitoring and simultaneous actigraphy as described below. (asnjournals.org)
  • This proof-of-concept study aimed to evaluate whether actigraphy data are significantly associated with patients' functioning and are predictive of their survival in patients with metastatic non-small cell lung cancer.MethodWe collected actigraphy data for a three-day period in ambulatory patients with stage IV non-small cell lung cancer. (elsevier.com)
  • 2. An ambulatory, extended-wear electrocardiography and syncope sensor monitor recorder (14) according to Claim 1, wherein the syncope sensor comprises at least one of a patient-mediated tactile feedback syncope button (66) and an actigraphy-based syncope sensor (64). (google.co.uk)
  • 3. An ambulatory, extended-wear electrocardiography and syncope sensor monitor recorder (14) according to Claim 2, wherein the syncope events comprise at least one of a syncope event identified by a patient (10,11) and a syncope event identified by the actigraphy-based syncope sensor (64) based on actigraphy filtering criteria comprising at least one of a falling event and a postural change event. (google.co.uk)
  • Both valid actigraphy data and hypertension data were available for 975 of these subjects. (ahajournals.org)
  • 782 submitted valid actigraphy studies. (rti.org)
  • Ceratto S, Dalmasso P, Miniero R, Montezemolo CD, Savino F. Comparison between actigraphy and parental reporting for sleep assessment in hospitalized infants. (minervamedica.it)
  • Current analysis tools have focused on sleep assessment and use graphical displays with zoom in/out capabilities and basic summary statistics (e.g., mean and standard deviation of the activity level within a patient) that enable the clinician to view a single patient s actigraphy data to identify aberrant patterns of activity. (docplayer.net)
  • The sensitivity, specificity and accuracy of wrist actigraphy were 91%, 44% and 85%, respectively and of hip actigraphy were 98%, 13% and 86%, respectively. (theactigraph.com)
  • Measurements of total sleep time (TST), sleep efficiency (SE), sleep onset latency (SOL) and wake after sleep onset (WASO) were derived and compared between wrist actigraphy, hip actigraphy and PSG. (theactigraph.com)
  • WASO was overestimated by wrist actigraphy and underestimated by hip actigraphy (by 34 and 65%, respectively). (theactigraph.com)
  • Estimates of sleep onset latency (SOL), total sleep time (TST), wake after sleep onset (WASO), and sleep efficiency (SE) were derived using standard proprietary equations for count based actigraphy and standard PSG definitions. (theactigraph.com)
  • Compared to wrist actigraphy, SOL and WASO were less but TEST and SE more when measure by hip actigraphy. (theactigraph.com)
  • In study I, BISQ measures were found to be correlated significantly with sleep measures derived from actigraphy and sleep diaries. (aappublications.org)
  • Sleep was measured objectively (actigraphy, Pittsburgh Sleep Quality Index) and subjectively (self-report sleep diaries). (medscape.com)
  • This validation quantifies strengths and weaknesses of actigraphy as a tool measuring sleep in clinical and population studies. (nih.gov)
  • Although wrist actigraphy is widely used in both clinical and research settings the present study shows it to have a limited capacity to detect periods of wake during sleep when using standard equations. (theactigraph.com)
  • Find hands-on support in the design, execution, and analysis of your study to effectively adopt advanced actigraphy endpoints and record multiple measures in pursuit of your clinical objectives. (koneksahealth.com)
  • This data model will use object oriented programming strategies programmed in the R open source statistical software programming language to store patient level (e.g., diagnoses, demographics, clinical variables, treatments, medications, previous history, research information) and actigraphy level data in a relational database. (docplayer.net)
  • The American Academy of Sleep Medicine established actigraphy as a useful research tool in 1995, but maintained that its clinical usefulness was uncertain. (news-medical.net)
  • Daily rest-activity patterns in the bipolar phenotype: A controlled actigraphy study. (ox.ac.uk)
  • Actigraphy is a noninvasive method of monitoring rest and activity in humans and is used to estimate patterns of sleep and wake. (sagepub.com)
  • This study found that actigraphy can be easily utilized to monitor sleep-wake patterns at home-based settings. (scirp.org)
  • Measurement of 24-h patterns of activity is relatively simple and cost-effective using actigraphy. (springer.com)
  • We have also been measuring sleep patterns across the sleep/wake cycle using actigraphy , as we know that sleep plays a critical role in memory and neurocognitive development and that changes in sleep patterns precede AD symptoms in typically developing adults ( see Fig 3 ). (ucl.ac.uk)
  • We conclude that actigraphy is overall a useful and valid means for estimating total sleep time and wakefulness after sleep onset in field and workplace studies, with some limitations in specificity. (nih.gov)
  • Actigraphy may be a useful and easy to use method for collecting data on infants' sleep than a parental diary, but actigraphy data should be analyzed in conjunction with infants' passive movement records. (minervamedica.it)
  • Daytime sleepiness, continuous rest-actigraphy and sleep diary data during roughly 4-weeks were analyzed. (uzh.ch)
  • Maintaining a sleep diary can be done in conjunction with wrist actigraphy. (medscape.com)
  • In conjunction with a sleep diary, the accuracy of actigraphy is significantly improved. (oxfordhandbooks.com)
  • Conversely, accuracy of parental reporting of sleep and wake using a sleep diary can be significantly improved when used in conjunction with actigraphy. (oxfordhandbooks.com)
  • No group differences were identified through actigraphy or diary measures. (coventry.ac.uk)
  • Conclusion: In this small pilot study, sleep duration measured by actigraphy was underestimated by four percent using one-minute epochs and overestimated by six percent as compared to PSG scored every 30 seconds. (cdc.gov)
  • The current study evaluated a method to remove truck seat vibration error variance from actigraphy data in order to produce accurate measures of caloric expenditure. (theactigraph.com)
  • The aim of this study was to analyze actigraphy-based sleep quantity and quality in sedentary and overweight/obese adults with primary hypertension (HTN) divided by sex and cardiorespiratory fitness (CRF) and to assess the association of sleep parameters with body composition, blood pressure (BP), and CRF. (springer.com)
  • With a team well-versed in the deployment and use of actigraphy devices and a platform that shares data in near real time, you can launch an innovative study or conduct multiple studies in parallel. (koneksahealth.com)
  • An American Academy of Sleep Medicine (AASM) report defines the practice parameters for the use of actigraphy in the study of sleep and circadian rhythms (Ancoli-Israel et al. (docplayer.net)
  • As primary objective, this prospective monocentric study aims to evaluate the performances of lower limbs actigraphy for PLMs diagnosis versus gold standard. (trialbulletin.com)
  • This study identified a subset of actigraphy features collected in free-living conditions that are moderately accurate in identifying persons with clinically-assessed mobility impaired and significantly improve the prediction of MMD. (elsevier.com)
  • Purpose: This study aimed to determine the feasibility and acceptability of actigraphy to monitor sleep quality and quantity in healthy self-rated good sleeper adults at home-based settings. (scirp.org)
  • Identification of earlier predictors of pregnancy complications through wearable technologies in a Brazilian multicentre cohort: Maternal Actigraphy Exploratory Study I (MAES-I) study protocol. (activinsights.com)
  • During this study, participants wore an actigraphy monitor, a watch-like device worn on the wrist that measures sleep duration and timing. (childrenscolorado.org)
  • Our study was based on self-reported sleep duration, and in a subsample, sleep duration was also assessed with actigraphy. (ahajournals.org)
  • From December 2004 onward, 1515 of these persons were asked to participate in the actigraphy study, 1076 (71%) of whom agreed. (ahajournals.org)
  • Actigraphy measurement showed a less significant, modest effect. (medscape.com)
  • To increase the use of actigraphy as a tool for objectively measuring fatigue, additional robust data models and statistical data analysis methods and software are needed. (docplayer.net)
  • 2. We will apply existing and develop new advanced statistical and visualization methods for actigraphy data and include them in the data model defined in Aim 1. (docplayer.net)
  • Actigraphy data were scored with standard methods and a validated algorithm. (edu.au)
  • Run-in Period (2 weeks in duration): During this period, participants will enter a 2-week run-in period (Day 14 to Day -1) during which baseline actigraphy measures of physical activity and sleep quality, overnight pulse oximetry assessments of oxygen saturation, and PRO assessments will be collected before initiating treatment with voxelotor. (clinicaltrials.gov)
  • Six actigraphy studies with 405 participants were included. (ntvp.nl)
  • The sleep of 115 participants aged 18-34 (mean = 24, SD = 4.6) was monitored with actigraphy for 4 to 6 consecutive nights. (mcgill.ca)
  • Results: Actigraphy was well accepted by all participants. (scirp.org)
  • 1 Exploratory Graphics for Functional Actigraphy Data Jürgen Symanzik William Shannon Abstract Actigraphy is an emerging technology for measuring a patient s overall activity level nearly continuously over time. (docplayer.net)
  • According to the AASM report, there is also a growing interest in actigraphy as a tool for objectively measuring fatigue. (docplayer.net)
  • Actigraphy is useful for assessing daytime sleepiness in place of a laboratory sleep latency test. (wikipedia.org)
  • In a subsample of 975 subjects, it was additionally measured with actigraphy, a validated method that infers wakefulness and sleep from the presence or absence of limb movement. (ahajournals.org)
  • An actigraphy is a noninvasive device that is used to monitor your child's sleep and wake pattern over a period of a few weeks. (cincinnatichildrens.org)
  • With the actigraphy it is also possible to determine some general information related to the sleep and the sleep quality of the subject, such as his/her chronotype, the sleep onset latency, the total sleep duration, the sleep consolidation (sleep efficiency), the time spent in bed, movements, and the sleep cycle. (wikipedia.org)
  • Results: PSG sleep duration was consistently underestimated by 4.16%+/-6.07% SD in actigraphy data collected using 1-minute epochs whereas the actigraphy data collected using 2-minute epochs overestimated sleep duration by 6.05%+/-8.09% SD. (cdc.gov)
  • Actigraphy accurately estimates sleep efficiency and duration. (uzh.ch)
  • 95% CI: 0.89 to 1.58) reflected a significant association between sleep duration and hypertension, whether measured by self-report or actigraphy. (ahajournals.org)
  • OBJECTIVE: Our objective was to examine the relationship between objectively assessed sleep duration, timing, and continuity (measured via wrist actigraphy) and maternal cardiovascular and metabolic morbidity specific to pregnancy. (rti.org)
  • Wearable fitness trackers depend heavily on actigraphy to determine the quality of sleep. (news-medical.net)
  • Most wearable fitness trackers that use actigraphy have a high margin of error. (news-medical.net)
  • Repeat actigraphy assessments of physical activity and sleep quality, and overnight pulse oximetry will be performed during the treatment period (Weeks 10 to 12 and Weeks 22 to 24). (clinicaltrials.gov)
  • Since the 1990s, however, actigraphy has increasingly been used to assess sleep/wake behavior. (wikipedia.org)
  • Actigraphy is a non-invasive technique used to assess cycles of activity and rest over several days to several weeks. (stanfordhealthcare.org)
  • They were asked to wear a wrist actigraphy monitor and complete a daily sleep log for a period of 7 consecutive days. (rti.org)
  • Wrist and hip actigraphy have been widely used to quantify sleep and physical activity, respectively. (theactigraph.com)
  • Actigraphy is widely used to estimate sleep-wake time, despite limited information regarding the comparability of different devices and algorithms. (actitrainer.com)
  • Actigraphy-estimated sleep durations were consistently longer using data collected with 2-minute epochs compared with those data collected with 1-minute epochs (10.21%+/-8.33% SD). (cdc.gov)
  • HealthDay)-Using actigraphy as a measure of sleep, critically ill patients in the intensive care unit (ICU) show wide ranges of sleep quality and quantity, and actigraphy may estimate higher sleep durations than other measures, according to a review published in the September issue of the Annals of the American Thoracic Society . (medicalxpress.com)
  • Actigraphy is a non-invasive method of monitoring human rest/activity cycles. (wikipedia.org)
  • Actigraphy is a valid proxy for monitoring of sleep in this population across injury severity and common comorbidity groups. (nih.gov)
  • Therefore, we investigated whether actigraphy might serve as a simple tool for monitoring sleep during altitude field studies. (uzh.ch)
  • In all subjects, 24h monitoring of electrocardiogram, blood pressure, and actigraphy profiles were conducted. (nih.gov)
  • Indeed, actigraphy may be efficient in measuring sleep parameters and sleep quality, however it is not provided with measures for brain activity (EEG), eye movements (EOG), muscle activity (EMG) or heart rhythm (ECG). (wikipedia.org)
  • The correlation between actigraphy-based measures of sleep and outcomes in the ICU was not assessed in any of the studies. (medicalxpress.com)
  • However, actigraphy measures of physical activity are likely inflated by large truck seat vibrations during driving periods. (theactigraph.com)
  • Unfiltered actigraphy measures inflated caloric expenditure estimates by 146.7 kcal/day on average. (theactigraph.com)
  • The sleep-wake behavior after delivery, obtained from wrist actigraphy, was greater in the postpartum period. (scite.ai)
  • Interestingly, actigraphy demonstrated significantly increased SE after continuous use of ACH for four weeks, clearly more improved when compared to two weeks of use. (mdpi.com)
  • Although there are robust findings of self-reported sleep disturbance in PTSD, evidence of sleep disturbance measured using actigraphy is less certain. (ntvp.nl)
  • Actigraphy documentation built on March 26, 2020, 6:07 p.m. (rdrr.io)
  • The objective was to examine the agreement between the MCTQ-derived midpoint and an objective measure obtained using wrist actigraphy. (mcgill.ca)
  • Kristin E. Schwab, M.D., from the University of California in Los Angeles, and colleagues conducted a systematic review of ICU-based studies that used actigraphy as a surrogate measure of sleep in critically ill patients . (medicalxpress.com)
  • MCTQ and actigraphy provide similar results for the corrected midpoint of sleep on free days. (mcgill.ca)
  • The researchers found that across the studies, the mean total sleep time, as estimated using actigraphy varied from 4.4 to 7.8 hours at nighttime and from 7.1 to 12.1 hours over a 24-hour period for ICU patients . (medicalxpress.com)
  • 1. Introduction Actigraphy is an emerging technology for measuring a patient s overall activity level nearly continuously over time. (docplayer.net)
  • Actigraphy has the advantage of being able to record data over long periods of time while the subject carries out his or her normal routine. (oxfordhandbooks.com)
  • Actigraphy is not the most reliable way to track sleep quality or even the time a person is actually asleep. (news-medical.net)
  • Actigraphy has been actively used in sleep-related studies since the early 1990s. (wikipedia.org)
  • Koneksa's actigraphy solution has been trusted by sponsors around the world to support actigraphy studies across all phases, both scientifically and operationally. (koneksahealth.com)
  • Subjects could also volunteer for two ancillary studies on melatonin and actigraphy. (biomedcentral.com)
  • Sleep efficiency, as measured by actigraphy, improved similarly in both groups during the treatment period, from 72% to 76% and 75% in the active and placebo group respectively (p = 0.91). (biomedcentral.com)
  • It is unclear whether hip-based actigraphy can be used to measure sleep. (theactigraph.com)
  • It remains unclear whether hip actigraphy is also a valid measure of sleep. (theactigraph.com)
  • Association between the Munich Chronotype Questionnaire and Wrist Actigraphy. (mcgill.ca)
  • Finally, actigraphy was sensitive in detecting the effects of treatment on several sleep parameters. (ulaval.ca)
  • Research showed that both sleep and wake are not equally assessed by actigraphy devices. (wikipedia.org)
  • We used intraclass correlation coefficients (ICCs), epoch-by-epoch comparisons, paired t-tests, and Bland-Altman plots to determine the level of agreement between actigraphy and PSG, and differences between devices and algorithms. (actitrainer.com)
  • The industry is technology driven and technological advancements in both diagnostic and therapeutic devices such as PSG devices, screening devices, actigraphy systems, Positive Airway Pressure (PAP) devices, humidifiers, adaptive servo-ventilation systems, oxygen devices, oral appliances, and accessories have enhanced patient compliance levels in recent years. (sbwire.com)
  • The global demand for other diagnostic devices such as respiratory polygraphs, two channel screening devices, single channel screening devices, and actigraphy systems is also on the rise due to their low costs. (sbwire.com)
  • Actigraphy reveals itself to be more likely to detect sleep than wake phases. (wikipedia.org)
  • Use of actigraphy scoring algorithm influenced the mean bias and level of agreement in sleep-wake times estimates. (actitrainer.com)
  • Wrist actigraphy is commonly used to measure sleep, and hip actigraphy is commonly used to measure activity. (theactigraph.com)
  • Actigraphy has attracted much attention for assessing physical activity in the past decade. (cdc.gov)
  • For actigraphy, a portable device is worn around the wrist to record gross motor activity and light/darkness over extended periods. (medscape.com)
  • Furthermore, actigraphy data show considerable variability within and between patients, so that landmark analyses may not be powerful enough to detect changes in activity levels due to disease or treatment response. (docplayer.net)
  • Actigraphy is a procedure that records the activity and the movement of the patient through a monitor or motion detector. (webhealthanswers.com)