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Body weight support gait

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https://www.readbyqxmd.com/read/28702442/kinematics-and-neuromuscular-recruitment-during-vertical-treadmill-exercise
#1
Alastair R Jordan, Andrew Barnes, David Claxton, Alison Purvis, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched, partial weight-bearing exercise mode for lower limb rehabilitation. The user undertakes a "running-like" action whilst body weight is supported by a bench and the limb is drawn downwards against overhanging resistance cables on a vertically hung nonmotorised treadmill. This study sought to describe the kinematics and neuromuscular recruitment during VertiRun exercise in the supine, 40°, and 70° postures. Twenty-one healthy male participants (age, 25±7 years; stature, 1...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28688302/effects-of-gait-speed-on-the-body-s-center-of-mass-motion-relative-to-the-center-of-pressure-during-over-ground-walking
#2
Hsuan-Lun Lu, Mei-Ying Kuo, Chu-Fen Chang, Tung-Wu Lu, Shih-Wun Hong
Preferred walking speed (PWS) reflects the integrated performance of the relevant physiological sub-systems, including energy expenditure. It remains unclear whether the PWS during over-ground walking is chosen to optimize one's balance control because studies on the effects of speed on the body's balance control have been limited. The current study aimed to bridge the gap by quantifying the effects of the walking speed on the body's center of mass (COM) motion relative to the center of pressure (COP) in terms of the changes and directness of the COM-COP inclination angle (IA) and its rate of change (RCIA)...
July 5, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28676752/an-adaptive-neuromuscular-controller-for-assistive-lower-limb-exoskeletons-a-preliminary-study-on-subjects-with-spinal-cord-injury
#3
Amy R Wu, Florin Dzeladini, Tycho J H Brug, Federica Tamburella, Nevio L Tagliamonte, Edwin H F van Asseldonk, Herman van der Kooij, Auke J Ijspeert
Versatility is important for a wearable exoskeleton controller to be responsive to both the user and the environment. These characteristics are especially important for subjects with spinal cord injury (SCI), where active recruitment of their own neuromuscular system could promote motor recovery. Here we demonstrate the capability of a novel, biologically-inspired neuromuscular controller (NMC) which uses dynamical models of lower limb muscles to assist the gait of SCI subjects. Advantages of this controller include robustness, modularity, and adaptability...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28662727/frontal-brain-activation-changes-due-to-dual-tasking-under-partial-body-weight-support-conditions-in-older-adults-with-multiple-sclerosis
#4
Gioella Chaparro, Julia M Balto, Brian M Sandroff, Roee Holtzer, Meltem Izzetoglu, Robert W Motl, Manuel E Hernandez
BACKGROUND: Gait impairments present while dual-tasking in older adults with multiple sclerosis (MS) have been associated with an increased risk of falls. Prior studies have examined prefrontal cortex (PFC) activity using functional near infrared spectroscopy (fNIRS) while dual-tasking in older adults with and without cognitive impairment. While the benefits of partial body weight support (PBWS) on gait have been clearly outlined in the literature, the potential use of PBWS to improve the ability to dual task in older adults with and without MS has not been examined...
June 29, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28645768/robot-assisted-training-for-people-with-spinal-cord-injury-a-meta-analysis
#5
REVIEW
Eddy Yy Cheung, Thomas Kw Ng, Kevin Kk Yu, Rachel Lc Kwan, Gladys Ly Cheing
OBJECTIVE: To investigate the effects of robotic-assisted training on the recovery of people with spinal cord injury (SCI). DATA SOURCE: Randomized controlled trials (RCTs) or quasi-RCTs involving people with SCI that compared robotic-assisted upper limbs or lower limbs training to a control of other treatment approach or no treatment. We included studies involving people with complete or incomplete spinal cord injuries. STUDY SELECTION: We searched in Medline, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Central Register of Controlled Trials (Cochrane Library) and Excerpta Medica dataBASE (EMBASE) to August, 2016...
June 20, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28580370/robotic-assist-as-needed-as-an-alternative-to-therapist-assisted-gait-rehabilitation
#6
Shraddha Srivastava, Pei Chun Kao, Darcy S Reisman, John P Scholz, Sunil K Agrawal, Jill S Higginson
OBJECTIVE: Body Weight Supported Treadmill Training (BWSTT) with therapists' assistance is often used for gait rehabilitation post-stroke. However, this training method is labor-intensive, requiring at least one or as many as three therapists at once for manual assistance. Previously, we demonstrated that providing movement guidance using a performance-based robot-aided gait training (RAGT) that applies a compliant, assist-as-needed force-field improves gait pattern and functional walking ability in people post-stroke...
October 2016: International Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28535762/gait-initiation-and-termination-strategies-in-patients-with-prader-willi-syndrome
#7
Veronica Cimolin, Nicola Cau, Manuela Galli, Cristina Santovito, Graziano Grugni, Paolo Capodaglio
BACKGROUND: Gait Initiation (GI) is a functional task representing one of the first voluntary destabilizing behaviours observed in the development of a locomotor pattern as the whole body centre of mass transitions from a large to a small base of support. Conversely, Gait Termination (GT) consists in the transition from walking to standing which, in everyday life, is a very common movement. Compared to normal walking, it requires higher control of postural stability. For a safe GT, the forward movement of the body has to be slowed down to achieve a stable upright position...
May 23, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28468814/metabolic-cost-of-human-hopping
#8
Anne K Gutmann, John E A Bertram
To interpret the movement strategies employed in locomotion, it is necessary to understand the source of metabolic cost. Muscles must consume metabolic energy to do work, but also must consume energy to generate force. The energy lost during steady locomotion and, hence, the amount of mechanical work muscles need to perform to replace it can be reduced and, in theory, even eliminated by elastically storing and returning some portion of this energy via the tendons. However, even if muscles do not need to perform any mechanical work, they still must generate sufficient force to tension tendons and support body weight...
May 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28460239/external-loading-alters-trunk-kinematics-and-lower-extremity-muscle-activity-in-a-distribution-specific-manner-during-sitting-and-rising-from-a-chair
#9
Michelle C Walaszek, Amanda L Ransom, Steven Capehart, Michael B Pohl, Robert Shapiro, Lance M Bollinger
BACKGROUND: Excess body mass alters gait biomechanics in a distribution-specific manner. The effects of adding mass centrally or peripherally on biomechanics during sitting and rising from a chair are unknown. METHODS: Motion analysis and lower extremity EMG were measured for fifteen healthy, normal weight subjects during sit-to-stand (SitTS) and stand-to-sit (StandTS) from a chair under unloaded (UN), centrally loaded (CL), and peripherally loaded (PL) conditions...
June 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28398300/is-body-weight-supported-treadmill-training-or-robotic-assisted-gait-training-superior-to-overground-gait-training-and-other-forms-of-physiotherapy-in-people-with-spinal-cord-injury-a-systematic-review
#10
REVIEW
J Mehrholz, L A Harvey, S Thomas, B Elsner
STUDY DESIGN: Systematic review about randomised trials comparing different training strategies to improve gait in people with spinal cord injuries (SCI). OBJECTIVES: The aim of this systematic review was to compare the effectiveness of body-weight-supported treadmill training (BWSTT) and robotic-assisted gait training with overground gait training and other forms of physiotherapy in people with traumatic SCI. SETTING: Systematic review conducted by researchers from Germany and Australia...
April 11, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28396629/effects-of-changing-body-weight-distribution-on-mediolateral-stability-control-during-gait-initiation
#11
Teddy Caderby, Eric Yiou, Nicolas Peyrot, Xavier de Viviés, Bruno Bonazzi, Georges Dalleau
During gait initiation, anticipatory postural adjustments (APA) precede the execution of the first step. It is generally acknowledged that these APA contribute to forward progression but also serve to stabilize the whole body in the mediolateral direction during step execution. Although previous studies have shown that changes in the distribution of body weight between both legs influence motor performance during gait initiation, it is not known whether and how such changes affect a person's postural stability during this task...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28376829/preserved-gait-kinematics-during-controlled-body-unloading
#12
L Awai, M Franz, C S Easthope, H Vallery, A Curt, M Bolliger
BACKGROUND: Body weight supported locomotor training was shown to improve walking function in neurological patients and is often performed on a treadmill. However, walking on a treadmill does not mimic natural walking for several reasons: absent self-initiation, less active retraction of leg required and altered afferent input. The superiority of overground training has been suggested in humans and was shown in rats demonstrating greater plasticity especially in descending pathways compared to treadmill training...
April 4, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28349768/effect-of-body-weight-support-variation-on-muscle-activities-during-robot-assisted-gait-a-dynamic-simulation-study
#13
Shahid Hussain, Prashant K Jamwal, Mergen H Ghayesh
BACKGROUND AND OBJECTIVES: While body weight support (BWS) intonation is vital during conventional gait training of neurologically challenged subjects, it is important to evaluate its effect during robot assisted gait training. In the present research we have studied the effect of BWS intonation on muscle activities during robotic gait training using dynamic simulations. METHODS: Two dimensional (2-D) musculoskeletal model of human gait was developed conjointly with another 2-D model of a robotic orthosis capable of actuating hip, knee and ankle joints simultaneously...
May 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28320889/trunk-muscle-activation-during-movement-with-a-new-exercise-device-for-lumbo-pelvic-reconditioning
#14
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
#15
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/28284567/the-analysis-of-three-dimensional-ground-reaction-forces-during-gait-in-children-with-autism-spectrum-disorders
#16
Che Zawiyah Che Hasan, Rozita Jailani, Nooritawati Md Tahir, Suryani Ilias
Minimal information is known about the three-dimensional (3D) ground reaction forces (GRF) on the gait patterns of individuals with autism spectrum disorders (ASD). The purpose of this study was to investigate whether the 3D GRF components differ significantly between children with ASD and the peer controls. 15 children with ASD and 25 typically developing (TD) children had participated in the study. Two force plates were used to measure the 3D GRF data during walking. Time-series parameterization techniques were employed to extract 17 discrete features from the 3D GRF waveforms...
March 9, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28268974/neuromotor-response-of-the-leg-muscles-following-a-supine-stand-retraining-with-without-neuromuscular-electrical-stimulation-training-intervention-for-individuals-with-sci-a-case-series
#17
Stephen Canton, Kamyar Momeni, Arvind Ramanujam, Erica Garbarini, Gail F Forrest
The goal of this paper is to study the effects of supine and stand retraining (SRT) interventions with and without multi muscle neuromuscular electrical stimulation (NMES) on the neuromuscular EMG responses of the leg muscles for individuals with motor complete SCI during walking on a body-weight support (BWS) treadmill. The main outcome variables were EMG amplitude, integrated EMG and co-contraction indices (co-excitation and co-activation) collected during a 10-minute walking treadmill trial. Data was analyzed for the first, fifth and tenth minute of walking...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268770/evaluation-of-a-variable-resistance-orthotic-knee-joint
#18
Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour
Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor weakness, designed to support the person during weight bearing activities by preventing knee flexion. KAFOs typically result in an unnatural gait pattern and are primarily used for level ground walking. A novel variable resistance orthotic knee joint, the Ottawalk-Variable Speed (OWVS), was designed to address these limitations. This paper presents a pilot test to evaluate the OWVS functional performance during walking and stair descent...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28253887/effectiveness-of-robot-assisted-gait-training-in-children-with-cerebral-palsy-a-bicenter-pragmatic-randomized-cross-over-trial-pelogait
#19
C Ammann-Reiffer, C H G Bastiaenen, A D Meyer-Heim, H J A van Hedel
BACKGROUND: Walking ability is a priority for many children with cerebral palsy (CP) and their parents when considering domains of importance regarding treatment interventions. Partial body-weight supported treadmill training has become an established therapeutic treatment approach to address this demand. Further, new robotic rehabilitation technologies have increasingly been implemented in the clinical setting to allow for longer training sessions with increased step repetitions while maintaining a consistent movement pattern...
March 2, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28241776/the-effectiveness-of-robot-assisted-gait-training-versus-conventional-therapy-on-mobility-in-severely-disabled-progressive-multiple-sclerosis-patients-ragtime-study-protocol-for-a-randomized-controlled-trial
#20
Sofia Straudi, Fabio Manfredini, Nicola Lamberti, Paolo Zamboni, Francesco Bernardi, Giovanna Marchetti, Paolo Pinton, Massimo Bonora, Paola Secchiero, Veronica Tisato, Stefano Volpato, Nino Basaglia
BACKGROUND: Gait and mobility impairments affect the quality of life (QoL) of patients with progressive multiple sclerosis (MS). Robot-assisted gait training (RAGT) is an effective rehabilitative treatment but evidence of its superiority compared to other options is lacking. Furthermore, the response to rehabilitation is multidimensional, person-specific and possibly involves functional reorganization processes. The aims of this study are: (1) to test the effectiveness on gait speed, mobility, balance, fatigue and QoL of RAGT compared to conventional therapy (CT) in progressive MS and (2) to explore changes of clinical and circulating biomarkers of neural plasticity...
February 27, 2017: Trials
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