TY - JOUR. T1 - Assessing abnormal gaits of parkinsons disease patients using a wearable motion detector. AU - Su, Rung Hung. AU - Hsu, Yeh Liang. AU - Chan, Lung. AU - Lin, Hanjun. AU - Yang, Che Chang. PY - 2014/1/1. Y1 - 2014/1/1. N2 - Accelerometers have been widely used in wearable systems for gait analysis. Several gait cycle parameters are provided to quantify the level of gait regularity and symmetry. This study attempts to assess abnormal gaits of Parkinson disease (PD) patients based on the gait cycle parameters derived in real-time from an accelerometry-based wearable motion detector (WMD). The results of an experiment with 25 healthy young adults showed that there were significant differences between gait cycle parameters of normal gaits and abnormal gaits derived from the WMD. Five PD patients diagnosed as Hoehn and Yahr stage I to II were recruited. It is difficult to collect data of abnormal gaits of the PD patients; therefore, ranges of the gait cycle parameters of abnormal ...

To identify spatiotemporal gait parameters and plantar pressure distribution during barefoot walking in people with gout and people with asymptomatic hyperuricemia by comparing them to healthy individuals with normal serum urate concentrations. Eighty-seven participants were included: 24 with gout, 29 with asymptomatic hyperuricemia and 34 age- and sex-matched normouricemic control participants. Spatiotemporal parameters of gait were assessed during level barefoot walking using a GAITRite® walkway. Peak plantar pressure and pressure time integrals were recorded using a TekScan MatScan®. Results were adjusted for age and body mass index. Compared to normouricemic control participants, participants with gout demonstrated increased step time (P = 0.022) and stance time (P = 0.022), and reduced velocity (P = 0.050). Participants with gout also walked with decreased peak pressure at the heel (P = 0.012) and hallux (P = 0.036) and increased peak pressure (P | 0.001) and pressure time integrals (P = 0.005)

Multiple sclerosis (MS) is a disabling disease affecting the central nervous system and consequently the whole bodys functional systems resulting in different gait disorders. Fatigue is the most common symptom in MS with a prevalence of 80%. Previous research studied the relation between fatigue and gait impairment using stationary gait analysis systems and short gait tests (e.g. timed 25 ft walk). However, wearable inertial sensors providing gait data from longer and continuous gait bouts have not been used to assess the relation between fatigue and gait parameters in MS. Therefore, the aim of this study was to evaluate the association between fatigue and spatio-temporal gait parameters extracted from wearable foot-worn sensors and to predict the degree of fatigue. Forty-nine patients with MS (32 women; 17 men; aged 41.6 years, EDSS 1.0-6.5) were included where each participant was equipped with a small Inertial Measurement Unit (IMU) on each foot. Spatio-temporal gait parameters were obtained from

The use of inertial sensors to characterize pathological gait has traditionally been based on the calculation of temporal and spatial gait variables from inertial sensor data. This approach has proved successful in the identification of gait deviations in populations where substantial differences from normal gait patterns exist; such as in Parkinsonian gait. However, it is not currently clear if this approach could identify more subtle gait deviations, such as those associated with musculoskeletal injury. This study investigates whether additional analysis of inertial sensor data, based on quantification of gyroscope features of interest, would provide further discriminant capability in this regard. The tested cohort consisted of a group of anterior cruciate ligament reconstructed (ACL-R) females and a group of non-injured female controls, each performed ten walking trials. Gait performance was measured simultaneously using inertial sensors and an optoelectronic marker based system. The ACL-R group

The purpose of this study was to investigate the asymmetry of anticipatory postural adjustment (APA) during gait initiation and to determine whether the process of choosing the initial swing leg affects APA during gait initiation. The participants initiated gait with the leg indicated by a start tone or initiated gait with the leg spontaneously chosen. The dependent variables of APA were not significantly different among the condition of initiating gait with the preferred leg indicated by the start tone, the condition of initiating gait with the non-preferred leg indicated by the start tone, and the condition of initiating gait with the leg spontaneously chosen. These findings fail to support the view that the process of choosing the initial swing leg affects APA during gait initiation. The lateral displacement of the center of pressure in the period in which shifting the center of pressure to the initial swing phase before initiating gait with the left leg indicated by the external cue was ...

TY - JOUR. T1 - Gait mechanics differences between healthy controls and patients with peripheral artery disease after adjusting for gait velocity, stride length, and step width. AU - McCamley, John D.. AU - Cutler, Eric L.. AU - Schmid, Kendra K. AU - Wurdeman, Shane R.. AU - Johanning, Jason M. AU - Pipinos, Iraklis I. AU - Myers, Sara A. PY - 2019/2. Y1 - 2019/2. N2 - Patients with peripheral artery disease (PAD) experience significant leg dysfunction. The effects of PAD on gait include shortened steps, slower walking velocity, and altered gait kinematics and kinetics, which may confound joint torques and power measurements. Spatiotemporal parameters and joint torques and powers were calculated and compared between 20 patients with PAD and 20 healthy controls using independent t tests. Separate analysis of covariance models were used to evaluate group differences after independently adjusting for gait velocity, stride length, and step width. Compared with healthy controls, patients with PAD ...

The European population is rapidly ageing. There is an urgent need for innovative solutions to reduce fall risk in older adults. Perturbation-based gait training is a promising new method to improve reactive balance responses. Whereas positive effects on task-specific dynamic balance recovery during gait have been shown in clinical or laboratory settings, translation of these effects to daily life gait function and fall risk is limited. We aim to evaluate the effect of a 4-week perturbation-based treadmill training on daily-life dynamic gait stability, assessed with inertial sensor data. Secondary outcomes are balance recovery performance, clinical balance and gait assessment scores, the amount of physical activity in daily life and falls incidence during 6 months follow-up. The study is a monocenter assessor-blinded randomized controlled trial. The target study sample consists of 70 older adults of 65 years and older, living in the community and with an elevated risk of falling. A block-randomization

BACKGROUND: Multiple aspects of gait are typically impaired post-stroke. Asymmetric gait is common as a consequence of unilateral brain lesions. The relationship between the resulting asymmetric gait and impairments in the ability to properly coordinate the reciprocal stepping activation of the legs is not clear. The objective of this exploratory study is to quantify the effects of hemiparesis on two putatively independent aspects of the bilateral coordination of gait to gain insight into mechanisms and their relationship and to assess their potential as clinical markers. METHODS: Twelve ambulatory stroke patients and age-matched healthy adults wore a tri-axial piezo-resistive accelerometer and walked back and forth along a straight path in a hall at a comfortable walking speed during 2 minutes. Gait speed, gait asymmetry (GA), and aspects of the bilateral coordination of gait (BCG) were determined. Bilateral coordination measures included the left-right stepping phase for each stride phii, ...

BACKGROUND/AIM: Three-dimensional kinematic measures of gait are routinely used in clinical gait analysis and provide a key outcome measure for gait research and clinical practice. This systematic review identifies and evaluates current evidence for the inter-session and inter-assessor reliability of three-dimensional kinematic gait analysis (3DGA) data. METHOD: A targeted search strategy identified reports that fulfilled the search criteria. The quality of full-text reports were tabulated and evaluated for quality using a customised critical appraisal tool. RESULTS: Fifteen full manuscripts and eight abstracts were included. Studies addressed both within-assessor and between-assessor reliability, with most examining healthy adults. Four full-text reports evaluated reliability in people with gait pathologies. The highest reliability indices occurred in the hip and knee in the sagittal plane, with lowest errors in pelvic rotation and obliquity and hip abduction. Lowest reliability and highest ...

Objectives: To examine gait regulation during the approach to stepping onto a curb for older adults who did or did not report gait-related falls over a 12-month follow-up. Methods: A total of 98 participants aged 60 years and older were analyzed. Primary outcomes were step length adaptations (lengthening or shortening) during a curb approach and the occurrence of a gait-related fall during a 12-month follow-up. Results: Linear mixed-effects modeling indicated stronger adaptations toward the end of the approach. Participants who reported experiencing a gait-related fall showed a stronger relationship between the adjustment required and adjustment produced, indicating different gait adaptations during the step leading onto the curb. Discussion: The link between prospective gait-related falls and gait adaptations indicated that older adults with reduced capabilities require stronger adaptations to complete tasks reminiscent of everyday life. This finding may provide insight into the mechanisms of ...

UNLABELLED: Jung T, Lee D, Charalambous C, Vrongistinos K. The influence of applying additional weight to the affected leg on gait patterns during aquatic treadmill walking in people poststroke.. OBJECTIVE: To investigate how the application of additional weights to the affected leg influences gait patterns of people poststroke during aquatic treadmill walking.. DESIGN: Comparative gait analysis.. SETTING: University-based aquatic therapy center.. PARTICIPANTS: Community-dwelling volunteers (n=22) with chronic hemiparesis caused by stroke.. INTERVENTIONS: Not applicable.. MAIN OUTCOME MEASURES: Spatiotemporal and kinematic gait parameters.. RESULTS: The use of an ankle weight showed an increase in the stance phase percentage of gait cycle (3%, P=.015) when compared with no weight. However, the difference was not significant after a Bonferroni adjustment was applied for a more stringent statistical analysis. No significant differences were found in cadence and stride length. The use of an ankle ...

Three-dimensional gait analysis has a long tradition as a diagnostic tool in pediatric orthopedics, especially in the treatment of cerebral palsy. Furthermore, it is established as an objective tool to report and monitor outcomes of interventions. However, despite three-dimensional gait analysis is effective in refining indications and dosage of interventions and in further understanding different gait pathologies to optimize treatment recommendations, many clinicians still ignore these findings and rely only on findings of clinical and radiographic evaluation.. In my lecture, I will focus on advances in patient treatment as a result of using gait analysis. Furthermore, I will discuss lessons we have learned from outcome evaluations using gait analysis and resulting changes in strategies of treatment. Another part of this talk will emphasize strategies to encourage clinicians to use gait analysis data to optimize their results and as a way to standardize indications and treatment ...

Variability raises considerable interest as a promising and sensitive marker of dysfunction in physiology, in particular in neurosciences. Both internally (e.g. pathology) and/or externally (e.g. environment) generated perturbations and the neuro-mechanical responses to them contribute to the fluctuating dynamics of locomotion. Defective internal gait control in Parkinsons disease (PD), resulting in typical timing gait disorders, is characterized by the breakdown of the temporal organization of stride duration variability. Influence of external cue on gait pattern could be detrimental or advantageous depending on situations (healthy or pathological gait pattern, respectively). As well as being an interesting rehabilitative approach in PD, treadmills are usually implemented in laboratory settings to perform instrumented gait analysis including gait variability assessment. However, possibly acting as an external pacemaker, treadmill could modulate the temporal organization of gait variability of PD

Human manner of walking characterized by kinematic parameters measure posture-gait control characterizing the dynamic changes in body parts with the involvement of multi-sensory patterns processed by different parts of the brain. In this study, low-cost sensors have been used to collect gait signals and identify the features responsible for differentiating the gait phases (swing/stance). Dataset was obtained for a total of 160 trails with 5 gait cycles per trail from healthy volunteers (n=20). Torque involved during progressive gait was also estimated to model regulation of the body for maintaining balance in gait and posture. Additionally, we also investigated EEG and gait correlates by identifying the brain regions that are active during movement initiation and during stance and swing (a progressive gait) using electroencephalography. While identifying key biomarkers relevant for posture control and gait, this could enhance low-cost detection of movement related diseases in technically ...

A group of researchers from Clinical Research & Services/Biomechanics at Ottobock in Gottingen, Germany, and Vienna, Austria, set out to describe the sagittal kinetic and kinematic gait characteristics of the ankle and residual knee joint of the prosthetic limb and the knee loading parameters of the sound side of people with unilateral below-knee amputations. The researchers noted that previous literature revealed inconsistent findings on kinetic parameters for determining the risk of developing knee osteoarthritis, such as the peak knee adduction moment, knee flexion moment, and vertical ground reaction forces.. The team used gait analyses from 53 people with unilateral below-knee amputations and compared them to a control group, both taken from an Ottobock database. They evaluated the sagittal kinetic and kinematic gait characteristics of the ankle and residual knee joint of the prosthetic limb, and the peak knee adduction moment, knee flexion moment, and vertical ground reaction forces of the ...

Many patients with incomplete spinal cord injury (iSCI) have impaired gait and balance capacity, which may impact daily functioning. Reduced walking speed and impaired gait stability are considered important underlying factors for reduced daily functioning. With conventional therapy, patients are limited in training gait stability, but this can be trained on a treadmill in a virtual environment, such as with the Gait Real-time Analysis Interactive Lab (GRAIL). Our objective was to evaluate the effect of 6-weeks GRAIL-training on gait and dynamic balance in ambulatory iSCI patients. In addition, the long-term effect was assessed. Fifteen patients with chronic iSCI participated. The GRAIL training consisted of 12 one-hour training sessions during a 6-week period. Patients performed 2 minute walking tests on the GRAIL in a self-paced mode at the 2nd, and 3rd (baseline measurements) and at the 12th training session. Ten patients performed an additional measurement after 6 months. The primary outcome was

Mean gait velocity under single (sGV) and dual tasks (vGV, cGV). Note: sGV: single task gait velocity; vGV: verbal gait velocity; cGV: counting gait velocity.

TY - JOUR. T1 - Classification of gait signals into different neurodegenerative diseases using statistical analysis and recurrence quantification analysis. AU - Prabhu, Pooja. AU - Karunakar, A. K.. AU - Anitha, H.. AU - Pradhan, N.. PY - 2020/11/1. Y1 - 2020/11/1. N2 - Among all the biological signals, gait signal is one of the better features to detect movement disorders caused by a malfunction in parts of the brain and nervous system. Usually, identifying and evaluating movement disorders caused due to neurodegenerative diseases solely depends on a physicians experience. Different diseases having gait abnormalities generate a unique gait characteristic. Traditionally, Fourier analysis is used to understand the gait characteristic, thereby predicting potential diseases. Fourier analysis assumes the gait signal to be stationary, linear and noiseless which is not a reality. To overcome this, Recurrence Quantification Analysis (RQA) is used in this study to quantify gait parameters. RQA has ...

Your doctor will likely encourage you to start gait training as soon as possible after an injury or illness that affects your ability to walk. They may recommend other forms of physical therapy and treatments too. You must be healthy enough for physical activity and movement before you begin. Your joints must also be strong enough to support gait training. Once youre healthy enough to start gait training, the process is similar to other physical therapies. It often involves machines that help you walk safely. Your therapist may also assist you in gait training exercises. They can help support your bodyweight, provide stability, and offer other assistance. Gait training commonly involves walking on a treadmill and completing muscle strengthening activities. You may wear a harness while walking on the treadmill or doing other exercises. Your therapist may also ask you to practice stepping over objects, lifting your legs, sitting down, standing up, or other activities. The type, intensity, and ...

Although gait disorders are frequently associated with Alzheimers disease (AD), few studies have focused on their characterization and mechanism. Exploring the associations of the gait characteristics - more particularly the gait variability - with the cognitive performance of AD patients on one hand, and with the morphological brain abnormalities on the other hand, could be useful to understanding the mechanisms of gait disorders in AD.. The main objective of this study is to examine and to compare gait characteristics under single- and dual-task conditions among healthy subjects together with AD patients at different stages of disease (i.e., pre-dementia, mild and moderate dementia stages). ...

BACKGROUND: Fear of falling (FOF) and increased gait variability are both independent markers of gait instability. There is a complex interplay between both entities. The purposes of this study were (1) to perform a qualitative analysis of all published studies on FOF-related changes in gait variability through a systematic review, and (2) to quantitatively synthesize FOF-related changes in gait variability. METHODS: A systematic Medline literature search was conducted in May 2014 using the Medical Subject Heading (MeSH) terms Fear OR fear of falling combined with Accidental Falls AND Gait OR Gait Apraxia OR Gait Ataxia OR Gait disorders, Neurologic OR Gait assessment OR Functional gait assessment AND Self efficacy OR Self confidence AND Aged OR Aged, 80 and over. Systematic review and fixed-effects meta-analysis using an inverse-variance method were performed. RESULTS: Of the 2184 selected studies, 10 observational studies (including 5 cross-sectional studies, 4 prospective

The purpose of this study was to determine the difference in spatiotemporal gait measures induced by stepping to the beat of a metronome and to music cues of various frequencies in individuals with Parkinsons disease. Twenty-one participants with Parkinsons disease were instructed to time their steps to a metronome and music cues (at 85%, 100%, and 115% of overground cadence). The authors calculated cadence, cadence accuracy, and step length during each cue condition and an uncued control condition. The music and metronome cues produced comparable results in cadence manipulation, with reduced cadence accuracy noted at slower intended frequencies. Nevertheless, the induced cadence elicited a concomitant alteration in step length. The music and metronome cues produced comparable changes to gait, but suggest that temporal control is more limited at slower frequencies, presumably by the challenge of increasing the step length. ...

TY - JOUR. T1 - Exploration of the physical functions related to the gait ability of subacute stroke patients using canonical correlation analysis. AU - Fujimoto, Shuhei. AU - Oyake, Kazuaki. AU - Yamaguchi, Tomofumi. AU - Tanabe, Shigeo. AU - Kondo, Kunitsugu. AU - Otaka, Yohei. PY - 2014/9/25. Y1 - 2014/9/25. N2 - [Purpose]: Using canonical correlation analysis, physical functions related to gait ability were evaluated in subacute stroke patients. [Subjects]: Seventy-two stroke patients in convalescent rehabilitation wards were enrolled. [Methods]: For gait ability, we evaluated gait velocity and gait variability. For physical function, we evaluated both motor and sensory functions of the affected lower limb, muscle tone of the ankle plantar flexor and muscle strength of both lower limbs. Using canonical correlation analysis, physical functions related to gait ability were explored. [Results]: As factors related to gait ability, muscle strength of both lower limbs and motor function of the ...

Stroke is a representative chronic disease with symptoms of movement and sensory disorders that affect the consciousness, language, cognition, and also cause paralysis [1,2]. Among them, motor neurons and sensory nerve damage cause stroke patients to have difficulty in daily life due to problems in balance and walking [3]. The main causes of such gait disturbances are decreased muscle activity, lack of balance sense, and reduced weight-bearing capacity [4], which limits the overall gait due to the slow gait cycle and reduced gait velocity [5]. Due to difficulties in performing daily life activities and requiring assistance, persons affected by stroke often exhibit low self-esteem, depression, and decreased quality of life [6].. Several studies have suggested various intervention methods to improve balance and walking ability for persons with stroke. Many studies have implemented treadmill gait training in patients with hemiplegia in order to improve postural symmetry by extending the weight ...

Background and Purpose: Conventional rehabilitation does not restore normal, upper limb function or normal gait to many stroke survivors. Functional neuromuscular stimulation (FNS) has shown promise for functional enhancement of both upper and lower limb motor control following stroke. Gains included muscle activation latencies, strength, coordination, upper limb functional tasks, gait kinematics, walking endurance, and quality of life. The purpose of the proposed work is to test the radio frequency-controlled (RF) Microstimulator (RFM) Gait System regarding system performance and subject response to treatment.. Methods: This is a feasibility study in which up to four subjects will receive the (RFM) Gait System. Up to ten RFMs will be placed for a given subject. An RFM ankle muscle system will be used to train ankle gait components. A separate RFM system will be used to train knee gait components. Subjects will be treated for 6 months, four sessions/wk. Primary outcome measures for the RFM Gait ...

TY - JOUR. T1 - Relationship between lower limb anthropometry and temporo-spatial parameters in gait of young adults. AU - Valencia, Oscar. AU - Araneda, Oscar. AU - Cárcamo, Marcela. AU - Carpes, Felipe. AU - Guzmán-Venegas, Rodrigo. PY - 2018. Y1 - 2018. N2 - Temporo-spatial parameters (TSP) are commonly used to characterize human gait. These help to differentiate population groups in different conditions of gait, but can be influenced by lower limb anthropometry. Different strategies are assumed to normalize TSP and permit comparison among people. However, it is not clear how dimensions of the different lower limb segments influence gait TSP. The aim of this study was to verify the relationship between gait TSP and length of the thigh, leg and foot in young adults. The body segments lengths were adjusted for individual height and correlated with gait TSP. We found a correlation between foot length and step width (r = 0.44). When data were adjusted for gender, step time, stride time, cadence ...

TY - JOUR. T1 - Gait Coordination After Stroke: Benefits of Acoustically Paced Treadmill Walking. AU - Roerdink, M.. AU - Lamoth, C.J.C.. AU - Kwakkel, G.. AU - van Wieringen, P.C.W.. AU - Beek, P.J.. PY - 2007. Y1 - 2007. N2 - Background and Purpose: Gait coordination often is compromised after stroke. The purpose of this study was to evaluate the efficacy of acoustically paced treadmill walking as a method for improving gait coordination in people after stroke. Participants: Ten people after stroke volunteered for the study and comprised the experimental group. Nine elderly people who were healthy served as a control group. Methods: Gait cycle parameters, interlimb coordination, and auditory-motor coordination were examined while participants walked on a treadmill with and without acoustic pacing. Results: Stride frequency was adjusted to different acoustic pacing frequencies in all participants. In people after strike, gait symmetry improved with acoustic pacing. They predominantly ...

TY - JOUR. T1 - Relationship between dual-task gait speed and walking activity poststroke. AU - Feld, Jody A.. AU - Zukowski, Lisa A.. AU - Howard, Annie G.. AU - Giuliani, Carol A.. AU - Altmann, Lori J.P.. AU - Najafi, Bijan. AU - Plummer, Prudence. PY - 2018/1/1. Y1 - 2018/1/1. N2 - Background and Purpose-Gait speed does not adequately predict whether stroke survivors will be active in the community. This may be because traditional single-task gait speed does not sufficiently reproduce the demands of walking in the real world. This study assessed whether dual-task gait speed accounts for variance in daily ambulatory activity above what can be predicted with habitual (single task) gait speed in community-dwelling stroke survivors. Methods-Twenty-eight community-dwelling individuals, 58.2 years of age (SD=16.6), 8.9 months poststroke (interquartile range, 3.7-19.4), completed a gait and cognitive task in single- and dual-task conditions. Daily ambulatory activity was captured using a physical ...

The present study demonstrated a stepwise incremental increased risk of mortality after TAVR in patients with the slowest gait speed (,0.5 m/sec) or who were unable to walk compared with that for patients with a normal gait speed. In addition to traditional classification, specific survival CART analysis indicated that gait speed as 0.385 m/sec in this study population was an independent predictive factor of worse prognosis after TAVR. These trends were maintained after adjusting for differences in baseline patient characteristics. Gait speed assessment was also useful in predicting a poor prognosis in patients who underwent transfemoral TAVR. When patients were divided into low (STS ,4%), intermediate (STS 4-8), and high (STS ,8%) surgical risk groups, significant survival differences based on the gait speed classification were found among patients in the intermediate and high surgical risk groups. However, it was difficult to evaluate statistical differences in the low-risk group because of ...

Conclusions Overall, this systematic review shows that many biomechanical parameters can be altered by running modification training programmes. These interventions result in short term small to large effects on kinetic, kinematic and spatiotemporal outcomes during running. In general, runners tend to employ a distal strategy of gait modification unless given specific cues. The most effective strategy for reducing high-risk factors for running-related injury-such as impact loading-was through real-time feedback of kinetics and/or kinematics. ...

Abnormal sleep may associate with cognitive decline in Parkinsons disease (PD). Furthermore, sleep dysfunction may associate with worse motor outcome. We hypothesised that PD patients with poor quality sleep would have greater progression in gait dysfunction, due to structural and functional overlap in networks subserving sleep and gait regulation. 12 PD patients and 12 age-matched controls completed longitudinal follow-up over 36 months. Poor sleep efficiency and greater sleep fragmentation correlated significantly with progression of step-width variability, a gait characteristic mediated by postural control, providing evidence that poor sleep in PD is associated with a more rapid deterioration in gait.. ...

TY - JOUR. T1 - Fluoroscopic and gait analysis of the functional performance in stair ascent of two total knee replacement designs. AU - Fantozzi, Silvia. AU - Benedetti, Maria Grazia. AU - Leardini, Alberto. AU - Banks, Scott Arthur. AU - Cappello, Angelo. AU - Assirelli, Doretta. AU - Catani, Fabio. PY - 2003/6. Y1 - 2003/6. N2 - Understanding total knee replacement mechanics and their influence on patient mobility requires accurate analysis of knee joint kinematics and traditional full body kinematics and kinetics. Three-dimensional fluoroscopic and gait analysis techniques were carried out on patients with either mobile bearing or posterior stabilized knee prostheses during stair ascent. Statistically significant correlation was found between knee flexion at foot strike and the position of the mid-condylar contact points, and between maximum knee adduction moment and corresponding lateral trunk tilt. A more complete and powerful assessment of the functional performances of different TKR ...

Fig. 7 Steep granular slope climbing via dynamic remodeling with an RRP gait.. (A) Top: Two top-down snapshots showing a RRP gait with no modulation, with a time interval between each snapshot of 0.65 s. In the RRP gait, the rear wheel colored in white sweeps toward the rear of the rover up to 45°. The sweep direction for each wheel in each snapshot is shown in black arrows. Once the sweep is complete, the wheel begins the reset phase, where the wheel is colored in red. The Mini Rover lifts the resetting wheel with its four-bar linkage and rotates it 45° toward the front of the rover. Bottom: Side-view illustration of the Mini Rover climbing a hill of GM using the RRP gait. (B) Mean velocities going uphill of the RS and RRP gaits shown in Fig. 1C and (A), respectively, for different granular slope angles (θbed). Data shown are means ± SD over seven trials for each angle. There is overall less variance in the RRP gaits mean velocity over multiple trials than the RS gaits, because RRP ...

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Abstract Objective: To compare the effects of gait training combined with compelled weight-shift therapy and gait training alone on velocity and gait symmetry in patients with chronic stroke. Design: Single-blind randomized controlled trial. Participants: Patients (N=28) with chronic stroke and stance asymmetry toward the non-paretic side. Interventions: Six weeks of gait training combined with compelled…

James S. Wrobel, D.P.M., M.S., and Bijan Najafi, Ph.D., M.S.. Background: Diabetic foot complications represent significant morbidity and precede most of the lower extremity amputations performed. Peripheral neuropathy is a frequent complication of diabetes shown to affect gait. Glycosylation of soft tissues can also affect gait. The purpose of this review article is to highlight the changes in gait for persons with diabetes and highlight the effects of glycosylation on soft tissues at the foot-ground interface.. Methods: PubMed, the Cochrane Library, and EBSCOhost® on-line databases were searched for articles pertaining to diabetes and gait. Bibliographies from relevant manuscripts were also searched.. Findings: Patients with diabetes frequently exhibit a conservative gait strategy where there is slower walking speed, wider base of gait, and prolonged double support time. Glycosylation affects are observed in the lower extremities. Initially, skin thickness decreases and skin hardness ...

Patients with neuromuscular disorders, such as poliomyelitis and Charcot-Marie-Tooth disease, frequently suffer from weakness or paresis of the calf muscles. Gait in calf muscle weakness is often characterised by excessive ankle dorsiflexion and persistent knee flexion during stance and by a reduced ankle push-off.1 These gait deviations nearly always lead to walking limitations such as instability,2 pain,3 ,4 reduced speed5 ,6 and an increased walking energy cost (EC),5-7 which may restrict walking activity in daily life.8-10. In normal gait, the calf muscles (gastrocnemius and soleus) prevent excessive ankle dorsiflexion, as the ground reaction force progresses over the foot in late stance. They create an eccentric force to restrain inclination of the shank,11 ,12 preventing the ankle from collapsing in uncontrolled dorsiflexion. This is followed by a concentric contraction of the calf muscles during push-off, which assists in propelling the limb forward into swing and inducing knee flexion.11 ...

DINI, PD e DAVID, AC. Repeatability of spatiotemporal gait parameters: comparison between normal children and children with hemiplegic spastic cerebral palsy. Rev. bras. fisioter. [online]. 2009, vol.13, n.3, pp.215-222. Epub 19-Jun-2009. ISSN 1413-3555. http://dx.doi.org/10.1590/S1413-35552009005000031.. OBJECTIVE: To evaluate the repeatability of spatiotemporal gait parameters by means of a comparative study between normal children and children with cerebral palsy (CP). METHODS: The sample consisted of 17 children divided into two groups: a group of nine children with spastic hemiplegia CP and a group of eight normal children. The children were evaluated by the same researcher in two different sessions, with a one-week interval between the sessions. The children walked at self-selected velocities, and six attempts were performed at each session to represent the average. To record the spatiotemporal parameters, the Peak Motus system was used with two SVHS video cameras with an acquisition rate ...

Quadrupedal locomotion is the result of complex interactions between biomechanical and neural systems. During steady gaits both systems are in stable states. When the animal changes its speed, transitions between gaits can occur where the different coordination parameters are dissociated. Consequently, transitions are the periods where it is possible to detect and identify those parameters involved in the mechanical or neural control of locomotion. We study the interlimb coordination using a sequential method (APS) to measure the footfall patterns of dogs when accelerating and decelerating from 1.5ms-1 to more than 6ms-1 and conversely. We obtained 383 transitions between all the symmetrical and asymmetrical gaits used by the dogs. The analysis of the interlimb coordination modifications and of each foot parameter showed that mechanics drive the stance phase whereas the coordination is controlled during the swing phase. Furthermore, the comparison of the transition patterns between all gaits ...

TY - JOUR. T1 - Speeding Up Gait in Parkinsons Disease. AU - Peterson, Daniel S.. AU - Mancini, Martina. AU - Fino, Peter C.. AU - Horak, Fay. AU - Smulders, Katrijn. N1 - Funding Information: We would like to thank the participants for generously donating their time to this study. Funding for this project included support from NIH 2R01 AG006457 (FH), VA Merit I01 RX001075 (FH), NIH Career Development Award R00 HD078492 (MM).. PY - 2020. Y1 - 2020. N2 - Background: Gait speed is an important outcome that relates to mobility, function, and mortality, and is altered in people with Parkinsons disease (PwPD). However, changes in gait speed may not reflect changes in other important aspects of gait. Objective: To characterize which outcomes change concomitantly with walking speed in PwPD. This information can inform the choice of outcome variables for characterizing and tracking gait performance in this population. Methods: 67 PwPD and 40 neurotypical adults completed 2-minute overground walking ...

TY - JOUR. T1 - Qualitative neurological gait abnormalities, cardiovascular risk factors and functional status in older community-dwellers without neurological diseases. T2 - The Healthy Brain Project. AU - Inzitari, Marco. AU - Metti, Andrea. AU - Rosano, Caterina. AU - Udina, Cristina. AU - Pérez, Laura M.. AU - Carrizo, Gabriela. AU - Verghese, Joe. AU - Newman, Anne B.. AU - Studenski, Stephanie. AU - Rosso, Andrea L.. PY - 2019/9. Y1 - 2019/9. N2 - Background: Neurologic gait abnormalities (NGA) increase risk for falls and dementia, but their pathophysiologic substrates or association with disability have been poorly investigated. We evaluated the association of NGA with clinical characteristics and functional status in older community-dwellers. Methods: Gait characteristics were measured in older community-dwellers without neurological or psychological diseases participating to the Health Aging Body Composition study. NGA were rated using standardized readings of video-recorded short ...

Many studies showed that robot-assisted gait training might improve walking of patients after stroke. The question remains whether patients with other neurological diagnoses can improve their ability to walk by training in a gait center. Aim of the present study was therefore to investigate the effects of a gait center training in inpatient neurological rehabilitation on walking ability. We implemented a gait center training in addition to individual inpatient rehabilitation. Our primary outcome was walking ability based on the Functional Ambulation Categories (FAC). Our secondary outcomes were vital capacity and blood pressure. We predefined subgroups of patients with ischemic and hemorrhagic stroke and critical illness myopathy (CIM) and polyneuropathy (CIP). We included 780 patients from our inpatient rehabilitation center in our cohort study. We analyzed 329 patients with ischemic, 131 patients with hemorrhagic stroke and 74 patients with CIP/ CIM. A large number of patients were able to improve

Gait-based features provide the potential for a subject to be recognized even from a low-resolution image sequence, and they can be captured at a distance without the subjects cooperation. Person recognition using gait-based features (gait recognition) is a promising real-life application. However, several body parts of the subjects are often occluded because of beams, pillars, cars and trees, or another walking person. Therefore, gait-based features are not applicable to approaches that require an unoccluded gait image sequence. Occlusion handling is a challenging but important issue for gait recognition. In this paper, we propose silhouette sequence reconstruction from an occluded sequence (sVideo) based on a conditional deep generative adversarial network (GAN). From the reconstructed sequence, we estimate the gait cycle and extract the gait features from a one gait cycle image sequence. To regularize the training of the proposed generative network, we use adversarial loss based on triplet hinge

TY - JOUR. T1 - Efficacy of end-effector Robot-Assisted Gait Training in subacute stroke patients. T2 - Clinical and gait outcomes from a pilot bi-centre study. AU - Aprile, Irene. AU - Iacovelli, Chiara. AU - Goffredo, Michela. AU - Cruciani, Arianna. AU - Galli, Manuela. AU - Simbolotti, Chiara. AU - Pecchioli, Cristiano. AU - Padua, Luca. AU - Galafate, Daniele. AU - Pournajaf, Sanaz. AU - Franceschini, Marco. PY - 2019/9/1. Y1 - 2019/9/1. N2 - BACKGROUND: End-effector robots allow intensive gait training in stroke subjects and promote a successful rehabilitation. A comparison between conventional and end-effector Robot-Assisted Gait Training (RAGT) in subacute stroke patients is needed. OBJECTIVE: To investigate the efficacy of end-effector RAGT in subacute stroke patients. METHODS: Twenty-six subacute stroke patients were divided into two group: 14 patients performed RAGT (RG); 12 patients performed conventional gait training (CG). Clinical assessment and gait analysis were performed at the ...

Background: Gait speed has been strongly associated with functioning and also found to be a global index of functioning in elderly. Similarly, low general muscle strength has been associated with physical inactivity and functional impairment. Aim: The aim of this study was to investigate whether there is an association between gait speed and lower extremity strength in elderly. Design: This was a cross-sectional study. Methods: 489 community-dwelling women and men (71.5 ± 5 yrs) filled out a questionnaire for background information, and were tested for gait speed and lower extremity strength. Gait speed was measured while participants walked in their preferred and fast gait speed on an electronic GaitRite walking mat. Lower extremity strength was tested with the Sit-to-stand performance test and leg press. Results: Significant, low to strong, positive associations were found between both gait speed levels and the Sit-to-stand parameters in both genders (p , 0.0005). Fast gait speed was strongly ...

Background: Modern strategies for knee osteoarthritis (OA) treatment and prevention includes early detection and analyses about pain, gait and lower extremity muscle function including both strength and stability. The very first sign of knee OA is pain or perceived knee instability, often experienced during weight bearing activities e.g. walking. Increased muscle strength will provide dynamic joint stability, reduce pain, and disability. Specific measures of gait symmetry (GS) can be assessed objectively by using accelerometers, which potentially is a feasible method when evaluating early symptoms of symptomatic knee OA.. Objectives: The aim was to study if symptoms of early knee pain affected gait symmetry, and the association between lower extremity muscles function and gait symmetry in patients with symptomatic knee OA.. Methods: Thirty-five participants (mean age 52 SD 9 years, 66% women) with uni- or bilateral symptomatic knee OA, and without signs of an inflammatory rheumatic disease or ...

Background: In normal gait, the ankle plantar flexors provide most propulsive energy during push-off, with smaller contribution of hip flexors. However, the interplay between these two joints remains unclear in spastic cerebral palsy. The objective of this study was to evaluate the kinetic relationship between the ankle plantar flexor and hip flexor power in late stance of gait (A2/H3) in mildly affected adults with spastic cerebral palsy. By implementing a ballistic strength training program, it was hypothesized that these exercises would exaggerate ankle plantar flexor power so the need for hip flexor power compensation would decrease, and thereby result in an increased A2/H3 ratio. Method: Ten adults with spastic hemiplegic and diplegic cerebral palsy, Gross Motor Function Classification System I-II, was recruited to attend an eight week ballistic strength training program mainly prescribed to most paretic limb. Three-dimensional gait analysis with a force plate was used to investigate the ...

Aim: To examine whether the Frontal Assessment Battery is associated with the immediate effects of physical therapy on gait disturbance in patients with Parkinsons disease.. Methods: A total of 18 patients with idiopathic Parkinsons disease (Hoehn and Yahr stage range 3-4) who were able to ambulate independently and who were not demented were included. Patients were divided into two groups on the basis of Frontal Assessment Battery scores: the high score group (score ≥13, n = 11) and the low score group (score ≤12, n = 7). A 3-D motion analysis system was used to acquire gait parameter data before and after a 30-min physical therapy program. Stride length, step length, cadence, walking velocity, single support time and double support time were measured. The range of motion of the hip, knee and ankle joint, and maximal trunk displacement on the horizontal plane were measured.. Results: In the high-score group, significant improvement was observed in walking velocity, stride length and step ...

TY - JOUR. T1 - Hip kinetics during gait are clinically meaningful outcomes in young boys with Duchenne muscular dystrophy. AU - Heberer, Kent. AU - Fowler, Eileen. AU - Staudt, Loretta. AU - Sienko, Susan. AU - Buckon, Cathleen E.. AU - Bagley, Anita. AU - Sison-Williamson, Mitell. AU - McDonald, Craig M. AU - Sussman, Michael D.. PY - 2016/7/1. Y1 - 2016/7/1. N2 - Duchenne muscular dystrophy (DMD) is an X-linked genetic neuromuscular disorder characterized by progressive proximal to distal muscle weakness. The success of randomized clinical trials for novel therapeutics depends on outcome measurements that are sensitive to change. As the development of motor skills may lead to functional improvements in young boys with DMD, their inclusion may potentially confound clinical trials. Three-dimensional gait analysis is an under-utilized approach that can quantify joint moments and powers, which reflect functional muscle strength. In this study, gait kinetics, kinematics, spatial-temporal ...

Progressive supranuclear palsy and Parkinsons disease have characteristic clinical and neuropathologic profiles, but also share overlapping clinical features. This study aimed to analyze the gait of people with progressive supranuclear palsy (n=19) and compare it with people with Parkinsons disease (n=20) and healthy older adults (n=20). Gait was recorded at self-selected preferred, fast, very fast, slow and very slow speeds. Stride length was normalized to leg length. Linear regression analyses were carried out between cadence and stride length. Other gait variables were compared for each participants walk which had stride length closest to 1.4. All groups showed a strong linear relationship between stride length and cadence with no difference between groups (p|0.05). The intercept between cadence and stride length was lowest in the progressive supranuclear palsy group and highest for older adults (p|0.001). The progressive supranuclear palsy group had higher cadence than older adults (p|0.05),

This study investigated the kinetic strategy and compensatory mechanisms during self-ambulatory gait in children with lumbo-sacral myelomeningocele. Thirty-one children with mid-lumbar to low-sacral myelomeningocele who walked without aids and 21 control children were evaluated by three-dimensional gait analysis. Joint moments in all planes at the hip and knee and sagittal moments at the ankle, as well as joint power and work done at all three joints, were analyzed. Joint moment capacity lost due to plantarflexor and dorsiflexor weakness was provided instead by orthotic support, but other joints were loaded more to compensate for the weakness at the ankles and restricted ankle motion. Subjects with total plantarflexor and dorsiflexor paresis and strength in the hip abductors had more knee extensor loading due to plantarflexor weakness and dorsiflexion angle of the orthotic, ankle joint. The subjects with orthoses also generated more power at the hip to supplement the power generation lost to ...

TY - JOUR. T1 - Association of balance measures and perception of fall risk on gait speed. T2 - A multiple regression analysis. AU - Rogers, Helen L.. AU - Cromwell, Ronita L.. AU - Newton, Roberta A.. N1 - Funding Information: Received 22 February 2004; accepted 21 July 2004. This study was funded in part by grant 1-R03-AG16884-01 from the National Institute on Aging. Address correspondence to Helen L. Rogers, Assistant Professor, Department of Physical Therapy, UTMB-SAHS, 301 University Boulevard, Route 1144, Galveston, TX 77555-1144, USA. E-mail: [email protected]. PY - 2005. Y1 - 2005. N2 - Gait speed, commonly modified to adapt to the balance and stability challenges of aging, is related to measures of balance and mobility. This study investigated associations between age, Berg Balance Scale, Activities-Specific Balance Confidence (ABC) Scale, One Question Fear of Falling (1QFOF), and gait speed in adults using regression analysis. Results suggested an interaction between 1QFOF and ABC ...

Robot-assisted gait training for stroke patients: current state of the art and perspectives of robotics Giovanni Morone,1,2 Stefano Paolucci,1,2 Andrea Cherubini,3 Domenico De Angelis,1 Vincenzo Venturiero,1 Paola Coiro,1 Marco Iosa1,2 1Private Inpatient Unit, 2Clinical Laboratory of Experimental Neurorehabilitation, IRCCS Santa Lucia Foundation, Rome, Italy; 3Department of Robotics, LIRMM UM-CNRS, Montpellier, France Abstract: In this review, we give a brief outline of robot-mediated gait training for stroke patients, as an important emerging field in rehabilitation. Technological innovations are allowing rehabilitation to move toward more integrated processes, with improved efficiency and less long-term impairments. In particular, robot-mediated neurorehabilitation is a rapidly advancing field, which uses robotic systems to define new methods for treating neurological injuries, especially stroke. The use of robots in gait training can enhance rehabilitation, but it needs to be used according to well

Flexion deformity physiopedia, regular get right of entry to to. Definition/description a flexion deformity of the knee is the lack of ability to absolutely straighten the knee. A synonym for it is flexion contracture. Ordinary lively range of. Reliability of physical exam inside the dimension of. Reliability of physical exam within the measurement of hip flexion contracture and correlation with gait parameters in cerebral palsy. Inmotion ask the physical therapist what are contractures?. Ask the physical therapist amputee with a hip flexion contracture. A hip flexed beyond 15 degrees forcing a shorter step and a miles more inefficient gait. unusual gait styles flashcards quizlet. Contracture gait. Joints of the lower hip flexion contracture regularly consequences in multiplied lumbar lordosis and extension of the trunk combined with knee flexion to. Stretching a hip flexion contracture lady. Sitting for lengthy periods of time may additionally lead to a condition called hip flexion contracture. ...

Looking for online definition of Gait lab in the Medical Dictionary? Gait lab explanation free. What is Gait lab? Meaning of Gait lab medical term. What does Gait lab mean?

Looking for online definition of intermittent double-step gait in the Medical Dictionary? intermittent double-step gait explanation free. What is intermittent double-step gait? Meaning of intermittent double-step gait medical term. What does intermittent double-step gait mean?

Background To examine the relationship between the metabolic syndrome and its components and gait speed among older U.S. men and women. Whether these associations are independent of physical activity was also explored. Methods Eight hundred and thirty-five men and 850 women aged ≥50 years from the continuous National Health and Nutrition Examination Survey 1999-2002 were examined. We used the definition of the metabolic syndrome developed by the U.S. National Cholesterol Education Program Adult Treatment Panel III. Gait speed was measured with a 6.10-meter timed walk examination. Results The prevalence of the metabolic syndrome was 40.2% in men and 45.6% in women (P = .127). The prevalence of gait speed impairment was 29.3% in men and 12.5% in women (P < .001). No association was found between the metabolic syndrome and gait speed impairment. After including the individual components of the metabolic syndrome in a logistic model adjusted for age and leisure-time physical activity, abdominal ...

An Intervention study (before-after trial) with an observational design was carried out in a university hospital. Seven ambulatory patients with hemiparesis of spinal or cerebral origin and spastic stiff-knee gait, which had previously been improved by botulinum toxin injections, were proposed a selective neurotomy of the rectus femoris muscle. A functional evaluation (Functional Ambulation Classification and maximal walking distance), clinical evaluation (spasticity - Ashworth scale and Duncan-Ely test, muscle strength - Medical Research Council scale), and quantitative gait analysis (spatiotemporal parameters, stiff knee gait-related kinematic and kinetic parameters, and dynamic electromyography of rectus femoris) were performed as outcome measures, before and 3 months after rectus femoris neurotomy ...

Background: Gait abnormalities can influence surgical outcomes in people with severe knee osteoarthritis (OA) and thus a thorough understanding of gait abnormalities in these people prior to arthroplasty is important. Varus-valgus thrust is a characteristic linked to OA disease progression that has not yet been investigated in a cohort with severe knee OA awaiting knee arthroplasty. The aims of this study were to determine i) prevalence of varus and valgus thrust in a cohort with severe knee OA compared to an asymptomatic group, ii) whether the thrust magnitude differed between these groups iii) differences between varus and valgus thrusters within the OA cohort and iv) whether certain measures could predict thrust in the OA cohort. Methods: 40 patients with severe knee OA scheduled for primary TKR and 40 asymptomatic participants were recruited. Three-dimensional gait analysis was performed on all participants, with the primary biomechanical measures of interest being: varus and valgus thrust, ...

Australian Physiotherapists in Amputee Rehabilitation - Transfemoral Gait Biomechanics. Analysis of Walking Patterns of Transfemoral Amputees.

Background: Gait abnormalities can influence surgical outcomes in people with severe knee osteoarthritis (OA) and thus a thorough understanding of gait abnormalities in these people prior to arthroplasty is important. Varus-valgus thrust is a characteristic linked to OA disease progression that has not yet been investigated in a cohort with severe knee OA awaiting knee arthroplasty. The aims of this study were to determine i) prevalence of varus and valgus thrust in a cohort with severe knee OA compared to an asymptomatic group, ii) whether the thrust magnitude differed between these groups iii) differences between varus and valgus thrusters within the OA cohort and iv) whether certain measures could predict thrust in the OA cohort. Methods: 40 patients with severe knee OA scheduled for primary TKR and 40 asymptomatic participants were recruited. Three-dimensional gait analysis was performed on all participants, with the primary biomechanical measures of interest being: varus and valgus thrust, ...

Gait ataxia; Ataxia of Gait; Cerebellar Gait. On-line free medical diagnosis assistant. Ranked list of possible diseases from either several symptoms or a full patient history. A similarity measure between symptoms and diseases is provided.

We describe the analysis of muscle hypertrophy in complete quadriplegics after 6 months of treadmill gait training with neuromuscular electrical stimulation (NMES). We aim to evaluate the effect of treadmill gait training using NMES, with 30-50% body weight relief, on muscle mass. Fifteen quadriplegics were divided into gait (n=8) and control (n = 7) groups. The gait group (GG) performed training, associated to partial body weight support, for 6 months, twice a week, for 20 min. Control group (CG) individuals performed only conventional physiotherapy, but did not perform gait training using NMES. Magnetic resonance imaging (MRI) was performed over quadriceps, at the beginning and after 6 months. The MRI was done to determine the average of cross-sectional area of the quadriceps. Moreover, a gray scale was used to separate the muscle from the conjunctive tissue (when the value is closer to 225, there is a higher amount of muscle tissue). After 6 months there was an increase of cross-sectional ...

Definition of cerebellar gait in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is cerebellar gait? Meaning of cerebellar gait as a legal term. What does cerebellar gait mean in law?

Parkinsons disease (PD) is one of the most common movement disorders, affecting approximately 1 million Americans (estimates range between 4 and 6.5 million people worldwide) and about 1% of older adults. In the US alone, 60,000 new cases are diagnosed each year. PD is a chronic and progressive neurological disorder that results in tremor, rigidity, slowness, and postural instability. A disturbed gait is a common, debilitating symptom; patients with severe gait disturbances are prone to falls and may lose their functional independence.. This database contains measures of gait from 93 patients with idiopathic PD (mean age: 66.3 years; 63% men), and 73 healthy controls (mean age: 66.3 years; 55% men). The database includes the vertical ground reaction force records of subjects as they walked at their usual, self-selected pace for approximately 2 minutes on level ground. Underneath each foot were 8 sensors (Ultraflex Computer Dyno Graphy, Infotronic Inc.) that measure force (in Newtons) as a ...

Multiple sclerosis (MS) is a chronic inflammatory disease causing widespread degeneration of the central nervous system. The disease, with different features and progression according to the clinical phenotype [1], gradually results in severe neurological deficits [2] with complex, variable and unpredictable patterns of symptoms [2] including different motor deficits [1]. Locomotor disability and balance disorders affect approximately 75% of persons with MS, with altered coordination of posture and gait [3, 4], mobility problems [5, 6], reduced walking competency [3] and increased risk of falling [7]. In progressive MS, the high prevalence of motor disorders and gait disabilities, the negative impact on personal activities and quality of life (QoL), and the limited effects of specific medications [8] make gait rehabilitation a crucial part of the management. The aim is to increase patients levels of activity and independence [9] and their QoL, even independent of symptom regression [10, 11]. ...

There are no health risks with gait analysis.. Gait analysis is not available in all areas. It needs to be done by a qualified and specially trained health professional.. Gait analysis is an expensive test. But in the long run, it may save time and money because the test can help guide treatment, prevent unneeded surgeries, and help a surgeon decide which type of surgery a person needs.. ...

Mirror gait retraining was effective in improving mechanics and measures of pain and function. Skill transfer to the untrained tasks of squatting and step descent indicated that a higher level of motor learning had occurred. Extended follow-up is needed to determine the long term efficacy of this tr …

Crowell HP, Davis IS. Gait retraining to reduce lower extremity loading in runners Clin Biomech (Bristol, Avon). 2010 Sep 30. [Epub ahead of print]...

We report use of an fMRI ankle dorsiflexion paradigm to test for cortical reorganization in patients with chronic stroke with varying degrees of residual gait impairment. In line with studies on movement of paretic upper limbs,1-6 our primary finding was increased cortical activation in the unlesioned hemisphere of the patients with stroke (ipsilateral to the paretic lower limb) with increasing functional impairment. Increased activation was found in SMC and SMA. We interpret this as reflecting mixed effects of a loss of normal interhemispheric inhibition of SMC27 and potentially adaptive recruitment of undamaged motor control pathways from the SMA in the ipsilateral hemisphere,28 but direct testing (eg, using transcranial magnetic stimulation interference)29 is needed to evaluate this hypothesis further.. Few previous studies have examined lower extremity movement in stroke using fMRI.7,17,18 The main finding of the largest study by Luft and coworkers suggested differences in brain activation ...

387809572 - EP 2012669 B1 20130313 - IMPROVED FUNCTIONAL ELECTRICAL STIMULATION SYSTEMS - [origin: WO2007125534A2] A gait modulation system including: (a) a sensor device including a sensor adapted for associating with at least one lower limb of the patient, the sensor for transducing at least one parameter related to a gait of the patient, so as to obtain gait data related to the gait, and (b) a muscle stimulator including: (i) an electrical stimulation circuit, the circuit adapted to supply an electrical stimulation output to an electrode array for performing functional electrical stimulation of at least one muscle of the lower limb, and (ii) a microprocessor, operatively connected to the at least one sensor, the microprocessor adapted for: receiving a stream of gait information based on the gait data; processing the gait information, and controlling the stimulation output based on the processing of the gait information, and wherein the microprocessor is further adapted to identify a failure in the

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Student will run 30 feet within 6 seconds demonstrating a functional gait 2 out of 3 trials on 2 out of 4 opportunities.. Student will run 30 feet within 10 seconds demonstrating a functional gait 2 out of 3 trials on 2 out of 4 opportunities.. Student will run 30 feet within 8 seconds demonstrating a functional gait 2 out of 3 trials on 2 out of 4 opportunities.. ...

Three-dimensional motion analysis and its application in total knee arthroplasty: what we know, and what we should analyze. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.

During walking older adults gait is slower, they take shorter steps, and rely less on ankle and more on knee and hip joint moments and powers compared to young adults. Previous studies have suggested that walking speed and step length are confounds that affect joint moments and powers. Our purpose was to examine the effects of walking speed and step length manipulation on net joint moments and powers in young and older adults. Sixteen young and 18 older adults completed walking trials at three speeds under three step length conditions as marker position and force platform data were captured synchronously. Net joint moments were quantified using inverse dynamics and were subsequently used to compute net joint powers. Average extensor moments at each joint during the stance phase were then computed. Older adults displayed greater knee extensor moment compared to young adults. Older adults showed trends (p | .10) of having lower ankle and higher hip moments, but these differences were not statistically

Introduction: Backward walking is difficult for persons with Parkinsons disease (PD). It is unknown how levodopa influences backward gait patterns, especially when compared to forward gait patterns. Purpose: Investigate the effects of levodopa on fo

To promote early rehabilitation of walking, gait training can start even when patients are on bed rest. Supine stepping in the early phase after injury is proposed to maximise the beneficial effects of gait restoration. In this training paradigm, mechanical loading on the sole of the foot is required to mimic the ground reaction forces that occur during overground walking. A pneumatic shoe platform was developed to produce adjustable forces on the heel and the forefoot with an adaptable timing. This study aimed to investigate the stimulation parameters of the shoe platform to generate walking-like loading on the foot sole, while avoiding strong reflexes. This study evaluated this platform in ten able-bodied subjects in a supine position. The platform firstly produced single-pulse stimulation on the heel or on the forefoot to determine suitable stimulation parameters, then it produced cyclic stimulation on the heel and the forefoot to simulate the ground reaction forces that occur at different walking

Several studies using treadmill exercise performed during short periods of training (2-25 days) have shown none or undersized effects on development and progression of clinical signs in EAE animals [27-31]. Therefore, we chose to investigate volume and duration of exercise similar to the protocol of swimming we have used previously in which we observed an important clinical score attenuation [24, 25].. We used regular treadmill exercise in this study in order to prepare animals in a similar ability to what they would be evaluated such as the CT system and motor rotarod, in which animals are forced to walk on the apparatus. Indeed, the basal data of the present work show several subtle motor alterations that represent an isolated effect of exercise on gait pattern in healthy condition, before the EAE induction. First, 6 weeks of treadmill exercise significantly decreased the BOS for FP and HP irrespective to the body weight. Based upon some data with animal models of ataxic gait such as cerebral ...

article{d8ffe6a5-ba3b-43d4-9e29-60b04b3bdce3, abstract = {OBJECTIVE: Mediolateral knee movement can be assessed visually with clinical tests. A knee-medial-to-foot position is associated with an increased risk of knee injuries and pathologies. However, the implications of such findings on daily tasks are not well understood. The aim of this study was to investigate if a knee-medial-to-foot position assessed during a clinical test was associated with altered hip and knee joint kinematics and knee joint kinetics during gait compared with those with a knee-over-foot position. DESIGN: Participants were visually assessed during a single-limb mini squat test and classified by a physiotherapist as exhibiting either a knee-medial-to-foot or knee-over-foot position. A comparison of 3-dimensional hip and knee gait kinematics and kinetics between the knee-over-foot and knee-medial-to-foot classifications was performed. SETTING: Research laboratory. PARTICIPANTS: Twenty-five healthy participants were ...

List of 24 causes for Facial and muscular rigidity and Gait disturbances and Retropulsive gait, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.

In a recent study, patients with Parkinson disease who engaged in body weight support treadmill training saw significant improvement in gait parameters and in clinical scales.

A University of Otago, Wellington study of 118 of the Capitals street-connecting walkways found graffiti was commonly visible (51% of walkways), as was litter (58%). Litter involving glass was present on 17% of walkways. On walkways with guttering, most (89%) were overflowing in at least one place with plant debris or living plants. Lighting was often insufficient at walkway entrances, with only 20% having lighting at both entrances. In addition, only 3% of walkways with steps had step edges painted to assist with visibility at night. Lead author of the study, Associate Professor Nick Wilson, says good urban design, including street connectivity, is important to encourage walking, which in turn helps prevent chronic illness such as heart disease, cancer and diabetes. These conditions account for a large share of health loss for New Zealand, and are major costs for the tax-payer funded health system, Wilson says. Wellington City Council could do better with walkway maintenance and ...

Automated Classification of Gait Abnormalities in Children with Autism Spectrum Disorders Based on Kinematic Data, Che Zawiyah Che Hasan, Rozita Jailani, Nooritawati Md Tahir, Autism spectrum disorders (ASD) are a permanent neurological disorder that can

The effect of footwear on gait and balance of children and adolescents with Charcot-Marie-Tooth (CMT) disease is of interest to parents and clinicians. Children with CMT, which causes progressive damage to peripheral nerves, particularly the feet and ankles, often have gait difficulties due to muscle weakness, including problems with balance, resulting in falls.. Researchers from Australia evaluated different styles of footwear and their relation to specific gait and balance parameters. Subjects included 30 children and adolescents with CMT and 30 healthy volunteers, ranging in age from 4 to 17 years. The CMT group included children and adolescents with different genetic defects. Inclusion criteria were the ability to walk ,75m without gait aids (orthoses permitted). Exclusion criteria included developmental disorders, neuromuscular/musculoskeletal disorders that could affect gait, and lower limb injury or surgery in the preceding 6 months. Assessments of anthropometry, gait, footwear, and ...

In order to identify abnormal or pathological motions associated with clinically relevant questions such as injury mechanisms or factors leading to joint degeneration, it is essential to determine the range of normal tibiofemoral motion of the healthy knee. In this study we measured in vivo 3D tibiofemoral motion of the knee during gait and characterized the nonsagittal plane rotations and translations in a group of six healthy young adults. The subjects were instrumented with markers placed on intracortical pins inserted into the tibia and femur as well as marker clusters placed on the skin of the thigh and shank. The secondary rotations and translation excursions of the knee were much smaller than those derived from skin markers and previously described in the literature. Also, for a given knee flexion angle, multiple combinations of transverse and frontal plane knee translation or rotation positions were found. This represents normal knee joint motions and ensemble averaging of gait data may ...