Actigraphy: The measurement and recording of MOTOR ACTIVITY to assess rest/activity cycles.Sleep: A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility.Sleep Disorders, Circadian Rhythm: 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.Sleep Disorders: 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)Polysomnography: 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.Wrist: The region of the upper limb between the metacarpus and the FOREARM.Wakefulness: A state in which there is an enhanced potential for sensitivity and an efficient responsiveness to external stimuli.Sleep Initiation and Maintenance Disorders: 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.Sleep Deprivation: 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.Monitoring, Ambulatory: The use of electronic equipment to observe or record physiologic processes while the patient undergoes normal daily activities.Sleep Medicine Specialty: A medical specialty concerned with the diagnosis and treatment of SLEEP WAKE DISORDERS and their causes.Circadian Rhythm: 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.Psychomotor Agitation: A feeling of restlessness associated with increased motor activity. This may occur as a manifestation of nervous system drug toxicity or other conditions.Phototherapy: Treatment of disease by exposure to light, especially by variously concentrated light rays or specific wavelengths.Motor Activity: The physical activity of a human or an animal as a behavioral phenomenon.Sleep Stages: 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.Sleep Apnea Syndromes: 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.Medical Records: Recording of pertinent information concerning patient's illness or illnesses.Self Report: Method for obtaining information through verbal responses, written or oral, from subjects.Disorders of Excessive Somnolence: 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)Melatonin: 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.Activity Cycles: 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.Reproducibility of Results: 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.Monitoring, Physiologic: 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.Questionnaires: 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.Fatigue: 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.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Apathy: Lack of emotion or emotional expression; a disorder of motivation that persists over time.Dementia: 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.Alzheimer Disease: 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)Video Recording: 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).Duodenoscopy: Endoscopic examination, therapy or surgery of the luminal surface of the duodenum.Stress Disorders, Post-Traumatic: 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.Sleep, REM: A stage of sleep characterized by rapid movements of the eye and low voltage fast pattern EEG. It is usually associated with dreaming.Brain-Derived Neurotrophic Factor: 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)Memory: 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.Recognition (Psychology): The knowledge or perception that someone or something present has been previously encountered.Mental Recall: The process whereby a representation of past experience is elicited.Memory, Episodic: Type of declarative memory, consisting of personal memory in contrast to general knowledge.Memory Disorders: 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.Sleep Apnea, Obstructive: A disorder characterized by recurrent apneas during sleep despite persistent respiratory efforts. It is due to upper airway obstruction. The respiratory pauses may induce HYPERCAPNIA or HYPOXIA. Cardiac arrhythmias and elevation of systemic and pulmonary arterial pressures may occur. Frequent partial arousals occur throughout sleep, resulting in relative SLEEP DEPRIVATION and daytime tiredness. Associated conditions include OBESITY; ACROMEGALY; MYXEDEMA; micrognathia; MYOTONIC DYSTROPHY; adenotonsilar dystrophy; and NEUROMUSCULAR DISEASES. (From Adams et al., Principles of Neurology, 6th ed, p395)Antihypertensive Agents: Drugs used in the treatment of acute or chronic vascular HYPERTENSION regardless of pharmacological mechanism. Among the antihypertensive agents are DIURETICS; (especially DIURETICS, THIAZIDE); ADRENERGIC BETA-ANTAGONISTS; ADRENERGIC ALPHA-ANTAGONISTS; ANGIOTENSIN-CONVERTING ENZYME INHIBITORS; CALCIUM CHANNEL BLOCKERS; GANGLIONIC BLOCKERS; and VASODILATOR AGENTS.Hypertension: Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.Blood Pressure: PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.Blood Pressure Monitoring, Ambulatory: Method in which repeated blood pressure readings are made while the patient undergoes normal daily activities. It allows quantitative analysis of the high blood pressure load over time, can help distinguish between types of HYPERTENSION, and can assess the effectiveness of antihypertensive therapy.Cardiovascular Diseases: Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.Blood Pressure Determination: Techniques for measuring blood pressure.Case-Control Studies: Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.Residence Characteristics: Elements of residence that characterize a population. They are applicable in determining need for and utilization of health services.Social Determinants of Health: The circumstances in which people are born, grow up, live, work, and age, as well as the systems put in place to deal with illness. These circumstances are in turn shaped by a wider set of forces: economics, social policies, and politics (http://www.cdc.gov/socialdeterminants/).Environment Design: The structuring of the environment to permit or promote specific patterns of behavior.Health Status Disparities: Variation in rates of disease occurrence and disabilities between population groups defined by socioeconomic characteristics such as age, ethnicity, economic resources, or gender and populations identified geographically or similar measures.Socioeconomic Factors: Social and economic factors that characterize the individual or group within the social structure.Health Status: The level of health of the individual, group, or population as subjectively assessed by the individual or by more objective measures.Public Health: Branch of medicine concerned with the prevention and control of disease and disability, and the promotion of physical and mental health of the population on the international, national, state, or municipal level.

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)

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), ...
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.. ...
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 ...
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 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 ...
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.
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。
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.. ...
There are currently no studies available reporting intervention effects on breaking up childrens sedentary time. This study examined the UP4FUN intervention effect on objectively measured number of breaks in sedentary time, number of sedentary bouts (, 10 mins) and total and average amount of time spent in those sedentary bouts among 10- to 12-year-old Belgian children. The total sample included 354 children (mean age: 10.9 ± 0.7 years; 59% girls) with valid ActiGraph accelerometer data at pre- and posttest. Only few and small intervention effects were found, namely on total time spent in sedentary bouts immediately after school hours (4-6PM; β = -3.51mins) and on average time spent in sedentary bouts before school hours (6-8.30AM; β = -4.83mins) and immediately after school hours in favor of children from intervention schools (β = -2.71mins). Unexpectedly, girls from intervention schools decreased the number of breaks during school hours (8.30AM-4PM; β = -23.45breaks) and increased the ...
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
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.. ...
easy MedCalc is a complete statistical program for Windows designed to closely match the requirements of biomedical researchers. It is fast, user-friendly and reliable.
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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 ...
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 ...
The Venezuelan 2018 Report Card updated the information available on the 2016 Report Card6 and compiled the information available for the 10 core physical activity indicators that are common to the Global Matrix 3.0 (Overall Physical Activity, Organized Sport and Physical Activity Participation, Active Play, Active Transportation, Sedentary Behavior, Physical Fitness, Family and Peers, School, Community and Environment, Government). In addition, Cardiometabolic Risk, Physical Activity for Children and Youth with a Disability, and Nongovernment initiatives indicators were included. These indicators were clustered into 1 of 3 categories: Daily Behaviors (Overall Physical Activity, Organized Sport and Physical Activity Participation, Active Play, Active Transportation, Sedentary Behaviors), Settings and Sources of Influence (Family and Peers, School, Community and Environment), and Strategies and Investments (Government, Nongovernment (NGO), Physical Activity Initiatives for Children and Youth with ...
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 ...
Circadian activity rhythms in hamsters are entrained to the daily light:dark cycle by photic information arriving from the retina to the suprachiasmatic nucleus, the site of the master circadian pacemaker in mammals. The effects of light on adjusting the timing of the circadian pacemaker is modified …
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. ...
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
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 ...
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
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
Sleep log or actigraphy monitoring (with sleep diaries) demonstrate for more than 14 days (work and free days included) ... Actigraphy and polysomnography could indicate some interesting patterns.[19] Further studies are needed to see if some phase ...
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 ...
Sleep diaries may be used in conjunction with actigraphy. In addition to being a useful tool for medical professionals in the ...
Actigraphy can assess sleep/wake patterns without confining one to the laboratory. The monitors are small, wrist-worn movement ... The first actigraphy device was made in 1978 by Krupke, and continuous positive airway pressure therapy and ... Other diagnostic tools are used while the patient is asleep such as the polysomnograph and actigraphy. A sleep diary is a daily ... The sleep diary may be used in conjunction with actigraphy. Sleep questionnaires help determine the presence of a sleep ...
Polysomnography and actigraphy are tests commonly ordered for some sleep disorders. Disruptions in sleep can be caused by a ...
NASA (2007). "Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long (Sleep-Long)". NASA. Archived from the original ...
Special interest groups in, for example pediatrics and actigraphy, have been established. It now provides a comprehensive ...
Actigraphy is indicated as a method to characterize circadian patterns or sleep disturbances in individuals with insomnia, ... ... The sleep diary can be replaced or validated by the use of out-patient actigraphy for a week or more, using a non-invasive ...
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 ...
"Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long". NASA, 13.09.2017. Vaadatud 31.10.2017. ...
Most reported cases have documented a non-24-hour sleep schedule with a sleep diary (see below) or actigraphy. In addition to ... Typically a sleep diary is requested to aid in evaluation of treatment, though the emergence of modern actigraphy devices can ... or by analyzing the pattern of the sleep-wake schedule using actigraphy. Most recent research has used serial measurements of ...
As of 2014, Movisens have developed the ability to trigger sampling forms from physiological data such as actigraphy and ECG. ...
The WakeMate was an electronic device with sensors intended to be used to monitor the sleep state of the user using actigraphy ...
Roth has also applied the use of skin conductance, electrocardiography, actigraphy, and monitoring of other physiological ...
Sleep-wake logs and/or actigraphy monitoring for at least two weeks document a consistent habitual pattern of sleep onsets, ...
Those conducting the treatment noticed how the nocturnal median motor activity was decreased, as was assessed by actigraphy, ...
... actigraphy and other activity measurements like step counting and cadence. Hexoskin allows real-time remote health monitoring ...
Actigraphy (also known as Actimetry) ARNTL ARNTL2 Bacterial circadian rhythms Circadian rhythm sleep disorders, such as ...
ESA Sleep-wake actigraphy and light exposure during spaceflight (SLEEP) - ESA Stress, cognition and physiological response ... On the contribution of visceral receptors to the sense of subjective vertical Sleep-wake actigraphy and light exposure during ...
Other ways to monitor the sleep schedule are actigraphy or use of a Continuous Positive Airway Pressure (CPAP) machine that can ...
... and conflicts with mission control were found and reported using techniques such as wrist actigraphy, the psychomotor vigilance ...
When objective measures are used, such as the relatively objective behavioural measure of actigraphy, the results have been ...
2007 NASA Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long Experiment An active mailing list for peer support ...
Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long (Sleep-Long) Sleep-Wake Actigraphy and Light Exposure During ... Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Short (Sleep-Short) (ISS Experiment) - NASA Human Factors ... NASA Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long (Sleep-Long) (ISS Experiment) - NASA Archived 2008-09-16 ...
... actigraphy has increasingly been used to assess sleep/wake behavior. Studies have found actigraphy to be helpful for sleep ... Actigraphy has been actively used in sleep-related studies since the early 1990s. It has not traditionally been used in routine ... Actigraphy is a non-invasive method of monitoring human rest/activity cycles. A small actigraph unit, also called an actimetry ... Actigraphy is useful for assessing daytime sleepiness in place of a laboratory sleep latency test. It is used to clinically ...
Practice parameters for the use of actigraphy in the assessment of sleep and sleep disorders: an update for 2007. Sleep. 2007 ...
... actigraphy has increasingly been used to assess sleep/wake behavior. Studies have found actigraphy to be helpful for sleep ... Actigraphy has been actively used in sleep-related studies since the early 1990s. It has not traditionally been used in routine ... Actigraphy is a non-invasive method of monitoring human rest/activity cycles. A small actigraph unit, also called an actimetry ... Actigraphy is useful for assessing daytime sleepiness in place of a laboratory sleep latency test. It is used to clinically ...
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 ...
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 ...
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 ...
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 ...
Multilevel functional methods for modeling actigraphy data and its application to predicting mortality in the US population. * ...
Actigraphy-Based Sleep Analysis in Sedentary and Overweight/Obese Adults with Primary Hypertension: Data from the EXERDIET-HTA ... Purpose: (1) The aim of this study was to analyze actigraphy-based sleep quantity and quality in sedentary and overweight/obese ...
... ... 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 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 ...
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 ...
Actigraphy. For actigraphy, a portable device is worn around the wrist to record gross motor activity and light/darkness over ... Actigraphy has shown concordance with polysomnography in the assessment of total sleep time. [66] The role of actigraphy in ... Natale V, Plazzi G, Martoni M. Actigraphy in the assessment of insomnia: a quantitative approach. Sleep. 2009 Jun 1. 32(6):767- ... Maintaining a sleep diary can be done in conjunction with wrist actigraphy. In the diary, patients should record estimates of ...
The actigraphy data, combined with patient diaries, were used to corroborate the absence of daytime napping and to define the ... Actigraphy. All patients wore an actigraph (Mini-Motion-Logger; Ambulatory Monitoring, Ardsley, NY) on the dominant wrist to ...
Exploratory Graphics for Functional Actigraphy Data Jürgen Symanzik William Shannon Abstract Actigraphy is an emerging ... Key Words: Actigraphy, Functional Data Analysis, Visualization. 1. Introduction Actigraphy is an emerging technology for ... 1 Exploratory Graphics for Functional Actigraphy Data Jürgen Symanzik William Shannon Abstract Actigraphy is an emerging ... Thus, actigraphy related data for each of the ten days (five at baseline, five at follow up) start at 0 minutes. Figure 5 shows ...
  • 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)
  • 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)
  • Actigraphy in the assessment of insomnia. (ulaval.ca)
  • 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)
  • 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)
  • 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)
  • Actigraphy watches are worn by infants on their ankle. (ucl.ac.uk)
  • 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)
  • Actigraphy data can best be described as functional data. (docplayer.net)
  • In this paper, we will present exploratory graphical displays for various components of functional actigraphy data. (docplayer.net)
  • Key Words: Actigraphy, Functional Data Analysis, Visualization. (docplayer.net)
  • Group comparisons reduce multivariate actigraphy data to summary statistics (e.g., mean, standard deviation) which throws out important information such as the pattern of activities. (docplayer.net)
  • 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)
  • We will define an object oriented data model for actigraphy and patient level data. (docplayer.net)
  • 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)
  • 3. To validate and improve the tools developed in Aims 1 and 2, we will prospectively collect actigraphy data under controlled experimental conditions (for calibration and methodology development) and in several patient subgroups. (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 data were downloaded using-proprietary software to generate an individual-sleep report. (scirp.org)
  • Actigraphy and weight gain data were reviewed for 751 women. (eurekalert.org)
  • 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)
  • 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 not the most reliable way to track sleep quality or even the time a person is actually asleep. (news-medical.net)
  • 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)
  • We report here an analysis of archived serum samples from cancer patients assessed with actigraphy, QOL indices, and treatment outcome. (aacrjournals.org)
  • 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)
  • According to the AASM report, there is also a growing interest in actigraphy as a tool for objectively measuring fatigue. (docplayer.net)
  • 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)
  • prescription of psychotrop treatment (hypnotic, anxiolytic, antidepressant, antipsychotic) in the week previous actigraphy recording. (clinicaltrials.gov)