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https://www.readbyqxmd.com/read/28327472/spatiotemporal-treadmill-gait-measurements-using-a-laser-range-scanner-feasibility-study-of-the-healthy-young-adults
#1
S Tanabe, T Ii, S Koyama, E Saitoh, N Itoh, K Ohtsuka, Y Katoh, A Shimizu, Y Tomita
OBJECTIVE: Spatio-temporal parameters are typically used for gait analysis. Although these parameters are measured by sophisticated systems such as 3D motion capture system or optoelectronic bars, these systems cannot be deployed easily because of their high costs, large space requirements and elaborate set-up. The purpose of this study is to develope a system for measuring spatiotemporal gait parameters using a laser range scanner during treadmill gait. APPROACH: To calculate accurate spatiotemporal parameters, the differences between the laser range scanner measured values and the reference values obtained from a 3D motion capture system were investigated in thirty subjects...
March 22, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28325033/user-intent-prediction-with-a-scaled-conjugate-gradient-trained-artificial-neural-network-for-lower-limb-amputees-using-a-powered-prosthesis
#2
Richard B Woodward, John A Spanias, Levi J Hargrove
Powered lower limb prostheses have the ability to provide greater mobility for amputee patients. Such prostheses often have pre-programmed modes which can allow activities such as climbing stairs and descending ramps, something which many amputees struggle with when using non-powered limbs. Previous literature has shown how pattern classification can allow seamless transitions between modes with a high accuracy and without any user interaction. Although accurate, training and testing each subject with their own dependent data is time consuming...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324959/a-robotic-exoskeleton-to-treat-crouch-gait-from-cerebral-palsy-initial-kinematic-and-neuromuscular-evaluation
#3
Zachary F Lerner, Diane L Damiano, Thomas C Bulea
A robotic exoskeleton was designed for individuals with crouch gait caused by cerebral palsy with the intent to supplement existing muscle function during walking. The aim of this study was to evaluate how powered knee extension assistance provided during stance and swing phases of the gait cycle affect knee kinematics, and knee flexor and extensor muscle activity. Muscle activity and kinematic data were collected from four individuals with crouch gait from cerebral palsy during their normal walking condition and while walking with the exoskeleton under stance, swing, and stance & swing assistance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324752/vertical-ground-reaction-force-during-standing-and-walking-are-they-related-to-bone-mineral-density-left-right-asymmetries
#4
Marina Brozgol, Mira Arbiv, Anat Mirelman, Talia Herman, Jeffrey M Hausdorff, Nachum Vaisman
Osteoporosis is a systemic skeletal disease that is characterized by reduced bone mass, deterioration of bone tissue and skeletal fragility. The purpose of the current study was to determine whether asymmetrical femur bone mineral density (BMD) is associated with asymmetrical gait and standing. We compared measures of gait and standing asymmetry in subjects with (n=38) and without (n=11) significant left-right differences in BMD. Participants walked for 72m at their comfortable speed and stood quietly for 60s while outfitted with pressure-sensitive insoles...
March 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28321683/resistance-training-using-a-novel-robotic-walker-for-over-ground-gait-rehabilitation-a-preliminary-study-on-healthy-subjects
#5
Kyung-Ryoul Mun, Brandon Bao Sheng Yeo, Zhao Guo, Soon Cheol Chung, Haoyong Yu
Strength training is an aspect of gait rehabilitation, which complements balance control and weight-bearing training. However, conventional strength training does not show positive gait outcomes, due to lack of task specificity. Therefore, the aims of this study were to investigate the effects of a resistance force applied at the center of mass (CoM) and to investigate whether this exercise can be used for effective task-specific gait training. Using a novel robotic walker, a consistent resistive force was applied to the CoM of subjects in the posterior direction...
March 20, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28320889/trunk-muscle-activation-during-movement-with-a-new-exercise-device-for-lumbo-pelvic-reconditioning
#6
Tobias Weber, Dorothée Debuse, Sauro E Salomoni, Edith L Elgueta Cancino, Enrico De Martino, Nick Caplan, Volker Damann, Jonathan Scott, Paul W Hodges
Gravitational unloading leads to adaptations of the human body, including the spine and its adjacent structures, making it more vulnerable to injury and pain. The Functional Re-adaptive Exercise Device (FRED) has been developed to activate the deep spinal muscles, lumbar multifidus (LM) and transversus abdominis (TrA), that provide inter-segmental control and spinal protection. The FRED provides an unstable base of support and combines weight bearing in up-right posture with side alternating, elliptical leg movements, without any resistance to movement...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28318816/use-of-electromyography-to-optimize-lokomat-%C3%A2-settings-for-subject-specific-gait-rehabilitation-in-post-stroke-hemiparetic-patients-a-proof-of-concept-study
#7
Yosra Cherni, Mickael Begon, Hicham Chababe, Florent Moissenet
OBJECTIVES: While generic protocols exist for gait rehabilitation using robotic orthotics such as the Lokomat(®), several settings - guidance, body-weight support (BWS) and velocity - may be adjusted to individualize patient training. However, no systematic approach has yet emerged. Our objective was to assess the feasibility and effects of a systematic approach based on electromyography to determine subject-specific settings with application to the strengthening of the gluteus maximus muscle in post-stroke hemiparetic patients...
March 16, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28314651/gait-and-balance-training-using-virtual-reality-is-more-effective-for-improving-gait-and-balance-ability-after-stroke-than-conventional-training-without-virtual-reality-synopsis
#8
https://www.readbyqxmd.com/read/28314650/gait-and-balance-training-using-virtual-reality-is-more-effective-for-improving-gait-and-balance-ability-after-stroke-than-conventional-training-without-virtual-reality-commentary
#9
https://www.readbyqxmd.com/read/28304305/combined-dual-task-gait-training-and%C3%A2-aerobic-exercise-to-improve-cognition-%C3%A2-mobility-and%C3%A2-vascular-health-in%C3%A2-community-dwelling-older-adults-at%C3%A2-risk-for-future-cognitive-decline1
#10
Michael A Gregory, Narlon C Boa Sorte Silva, Dawn P Gill, Cheri L McGowan, Teresa Liu-Ambrose, J Kevin Shoemaker, Vladimir Hachinski, Jeff Holmes, Robert J Petrella
This 6-month experimental case series study investigated the effects of a dual-task gait training and aerobic exercise intervention on cognition, mobility, and cardiovascular health in community-dwelling older adults without dementia. Participants exercised 40 min/day, 3 days/week for 26 weeks on a Biodex GaitTrainer2 treadmill. Participants were assessed at baseline (V0), interim (V1: 12-weeks), intervention endpoint (V2: 26-weeks), and study endpoint (V3: 52-weeks). The study outcomes included: cognition [executive function (EF), processing speed, verbal fluency, and memory]; mobility: usual & dual-task gait (speed, step length, and stride time variability); and vascular health: ambulatory blood pressure, carotid arterial compliance, and intima-media thickness (cIMT)...
March 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28303754/effects-of-running-experience-on-coordination-and-its-variability-in-runners
#11
Pablo Floría, Alberto Sánchez-Sixto, Reed Ferber, Andrew J Harrison
The purpose of this study was to examine the differences in coordination variability in running gait between trained runners and non-runners using continuous relative phase (CRP) analysis. Lower extremity kinematic data were collected for 22 participants during the stance phase. The participants were assigned to either a runner or non-runner group based on running volume training. Segment coordination and coordination variability were calculated for selected hip-knee and knee-ankle couplings. Independent t-tests and magnitude-based inferences were used to compare the 2 groups...
March 17, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28301325/circulating-mirnas-as-biomarkers-of-gait-speed-responses-to-aerobic-exercise-training-in-obese-older-adults
#12
Tan Zhang, Tina E Brinkley, Keqin Liu, Xin Feng, Anthony P Marsh, Stephen Kritchevsky, Xiaobo Zhou, Barbara J Nicklas
Gait speed is a useful predictor of adverse outcomes, including incident mobility disability and mortality in older adults. While aerobic exercise training (AEX) is generally an effective therapy to improve gait speed, individual responses are highly variable. Circulating microRNAs (miRNAs) may contribute to inter-individual changes in gait speed with AEX. We examined whether plasma miRNAs are associated with gait speed changes (dGaitSp) in 33 obese older adults (age: 69.3±3.6 years, BMI: 34.0±3.1 kg/m(2), 85% white, 73% women) who performed treadmill walking, 4 days/week for 5 months...
March 15, 2017: Aging
https://www.readbyqxmd.com/read/28299643/retention-of-the-first-trial-effect-in-gait-slip-among-community-living-older-adults
#13
Xuan Liu, Tanvi Bhatt, Shuaijie Wang, Feng Yang, Yi-Chung Clive Pai
"First-trial effect" characterizes the rapid adaptive behavior that changes the performance outcome (from fall to non-fall) after merely a single exposure to postural disturbance. The purpose of this study was to investigate how long the first-trial effect could last. Seventy-five (≥ 65 years) community-dwelling older adults, who were protected by an overhead full body harness system, were retested for a single slip 6-12 months after their initial exposure to a single gait-slip. Subjects' body kinematics that was used to compute their proactive (feedforward) and reactive (feedback) control of stability was recorded by an eight-camera motion analysis system...
February 2017: Geroscience
https://www.readbyqxmd.com/read/28295912/training-with-a-balance-exercise-assist-robot-is-more-effective-than-conventional-training-for-frail-older-adults
#14
Kenichi Ozaki, Izumi Kondo, Satoshi Hirano, Hitoshi Kagaya, Eiichi Saitoh, Aiko Osawa, Yoichi Fujinori
AIM: To examine the efficacy of postural strategy training using a balance exercise assist robot (BEAR) as compared with conventional balance training for frail older adults. METHODS: The present study was designed as a cross-over trial without a washout term. A total of 27 community-dwelling frail or prefrail elderly residents (7 men, 20 women; age range 65-85 years) were selected from a volunteer sample. Two exercises were prepared for interventions: robotic exercise moving the center of gravity by the balance exercise assist robot system; and conventional balance training combining muscle-strengthening exercise, postural strategy training and applied motion exercise...
March 10, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28293760/effects-of-partial-absence-of-visual-feedback-information-on-gait-symmetry
#15
Seung-Jae Kim, Marie Aimee Kayitesi, Amy Chan, Kimberli Graham
The incorporation of real-time visual feedback during gait rehabilitation can improve the efficacy of training. Our prior work demonstrated that the imposed distortion of simple visual feedback information of step lengths entails an unintentional adaptive process in the subjects' spatial gait pattern, thereby suggesting the important role of implicit learning in the context of gait rehabilitation that employs visual feedback. The purpose of this study was to investigate whether the removal of a portion of visual feedback information-after it had initially been provided-had any impact on gait symmetry...
March 14, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28290191/effects-of-progressive-resistance-exercise-in-akinetic-rigid-parkinson-s-disease-patients-a-randomized-controlled-trial
#16
Luis Santos, Javier Fernandez-Rio, Kristian Winge, Beatriz Barragán-Pérez, Lucía González-Gómez, Vicente Rodríguez-Pérez, Vicente González-Díez, Alejandro Lucía, Eliseo Iglesias-Soler, Xurxo Dopico-Calvo, Miguel Fernández-Del-Olmo, Miguel Del-Valle, Miguel Blanco-Traba, Oscar E Suman, Javier Rodríguez-Gómez
BACKGROUND: Progressive resistance exercise (PRE) can have a positive effect in individuals with Parkinson's disease (PD). However, the effect of PRE may vary with the clinical subtype of PD. To date, no study has assessed the effects of PRE in the different subtypes of PD. AIM: The aim of the present study was to assess the effects of PRE in PD patients with akinesia and rigidity (AR-subtype). DESIGN: A randomized controlled trial was conducted...
March 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28289633/improved-gait-speed-after-robot-assisted-gait-training-in-patients-with-motor-incomplete-spinal-cord-injury-a-preliminary-study
#17
Seungwon Hwang, Hye-Ri Kim, Zee-A Han, Bum-Suk Lee, Soojeong Kim, Hyunsoo Shin, Jae-Gun Moon, Sung-Phil Yang, Mun-Hee Lim, Duk-Youn Cho, Hayeon Kim, Hye-Jin Lee
OBJECTIVE: To evaluate the clinical features that could serve as predictive factors for improvement in gait speed after robotic treatment. METHODS: A total of 29 patients with motor incomplete spinal cord injury received 4-week robot-assisted gait training (RAGT) on the Lokomat (Hocoma AG, Volketswil, Switzerland) for 30 minutes, once a day, 5 times a week, for a total of 20 sessions. All subjects were evaluated for general characteristics, the 10-Meter Walk Test (10MWT), the Lower Extremity Motor Score (LEMS), the Functional Ambulatory Category (FAC), the Walking Index for Spinal Cord Injury version II (WISCI-II), the Berg Balance Scale (BBS), and the Spinal Cord Independence Measure version III (SCIM-III) every 0, and 4 weeks...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28288333/metric-learning-for-parkinsonian-identification-from-imu-gait-measurements
#18
Fabio Cuzzolin, Michael Sapienza, Patrick Esser, Suman Saha, Miss Marloes Franssen, Johnny Collett, Helen Dawes
Diagnosis of people with mild Parkinson's symptoms is difficult. Nevertheless, variations in gait pattern can be utilised to this purpose, when measured via Inertial Measurement Units (IMUs). Human gait, however, possesses a high degree of variability across individuals, and is subject to numerous nuisance factors. Therefore, off-the-shelf Machine Learning techniques may fail to classify it with the accuracy required in clinical trials. In this paper we propose a novel framework in which IMU gait measurement sequences sampled during a 10m walk are first encoded as hidden Markov models (HMMs) to extract their dynamics and provide a fixed-length representation...
February 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28287978/on-the-adaptation-of-pelvic-motion-by-applying-3-dimensional-guidance-forces-using-tpad
#19
Jiyeon Kang, Vineet Vashista, Sunil Agrawal
Pelvic movement is important to human locomotion as the center of mass is located near the center of pelvis. Lateral pelvic motion plays a crucial role to shift the center of mass on the stance leg while swinging the other leg and keeping the body balanced. In addition, vertical pelvic movement helps to reduce metabolic energy expenditure by exchanging potential and kinetic energy during the gait cycle. However, patient groups with cerebral palsy or stroke have excessive pelvic motion that leads to high energy expenditure...
March 8, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28284834/the-effectiveness-of-active-cycling-in-subacute-stroke-rehabilitation-a-randomized-controlled-trial
#20
Christel Vanroy, Hilde Feys, Anke Swinnen, Yves Vanlandewijck, Steven Truijen, Dirk Vissers, Marc Michielsen, Kristien Wouters, Patrick Cras
OBJECTIVE: To examine the effects of 3-month aerobic training (AT) followed by coaching on aerobic capacity, strength and gait speed after subacute stroke. DESIGN: Randomized controlled trial SETTING: Inpatient rehabilitation center PARTICIPANTS: Patients (N=59; mean age= 65.4±10.3; 21 women (36%); Barthel Index≤50= 64%) with first stroke and able to cycle at 50 revolutions/minute enrolled in the study 3-10 weeks after stroke onset. INTERVENTIONS: Patients were randomly allocated to a 3-month cycling group (ACG, n=33) and education or to a control group (CG, n=26)...
March 8, 2017: Archives of Physical Medicine and Rehabilitation
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