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Body weight support gait

Sook-Yee Chong, Oliver Röhrle
A satisfactorily fitted socket interacts dynamically with the stump in order to support body weight, transmit load effectively, enhance dynamic stability, and enable the control and stabilization of the residual limb. The internal dynamics occurring within a socket is important in determining optimal fit. Many measurement and imaging techniques, such as X-rays, have been utilized to investigate the movement of the residual femur within the stump during gait. However, due to associated health risks and costs, none of the current techniques have been extended to clinical prosthetics...
2016: PloS One
Nina Lefeber, Eva Swinnen, Eric Kerckhofs
PURPOSE: The integration of sufficient cardiovascular stress into robot-assisted gait (RAG) training could combine the benefits of both RAG and aerobic training. The aim was to summarize literature data on the immediate effects of RAG compared to walking without robot-assistance on metabolic-, cardiorespiratory- and fatigue-related parameters. METHODS: PubMed and Web of Science were searched for eligible articles till February 2016. Means, SDs and significance values were extracted...
October 20, 2016: Disability and Rehabilitation. Assistive Technology
Hsuan-Lun Lu, Tung-Wu Lu, Hsiu-Chen Lin, Hong-Jung Hsieh, Wing P Chan
Treadmills are often used in clinical settings to improve walking balance control in patients with gait impairments. However, knowledge of the effects of belt speed on balance control remains incomplete. The current study determined such effects in terms of inclination angles (IA) and the rate of change (RCIA) of the center of mass (COM) motion relative to the center of pressure (COP) in twelve healthy adults at five belt speeds, including the subjects' preferred walking speed (PWS), as measured using a motion capture system and an instrumented treadmill...
September 29, 2016: Gait & Posture
R A Weinert-Aplin, M Twiste, H L Jarvis, A N Bennett, R J Baker
Amputees are known to walk with greater metabolic cost than able-bodied individuals and establishing predictors of metabolic cost from kinematic measures, such as centre of mass (CoM) motion, during walking are important from a rehabilitative perspective, as they can provide quantifiable measures to target during gait rehabilitation in amputees. While it is known that vertical CoM motion poorly predicts metabolic cost, CoM motion in the medial-lateral (ML) and anterior-posterior directions have not been investigated in the context of gait efficiency in the amputee population...
September 26, 2016: Gait & Posture
Woo-Sub Kim, Min Joo Kim
OBJECTIVE: Patients with post-stroke hemiplegia have difficulty with body weight support during walking. However, it is unclear which intra-limb strategy for body weight support tends to predominate, and how the intra-limb strategy is related to gait function. Support moment and individual joint contribution to support moment are the parameters that reflect intra-limb strategy for body weight supporting. The aim of this study was to test whether support moment and individual joint contributions differed between post-stroke subjects with different gait function...
August 12, 2016: Topics in Stroke Rehabilitation
Ruoliang Tang, Maggie Poklar, Hilary Domke, Stephanie Moore, Jay Kapellusch, Arun Garg
To prevent back and shoulder injuries to nursing personnel, sit-to-stand lifts are used to transfer partial-weight-bearing patients with upper extremity strength. However, the weight-bearing capacity and upper extremity strength required of patients have not been defined. The objectives of this study were to determine: (a) the percentage of body weight borne by the patient when lifted to different heights in the lift and (b) whether a patient needs upper extremity strength. Nineteen healthy normal-weight volunteers (ages 19-39) were transferred from a hospital bed to a wheelchair using (a) a gait belt and (b) a sit-to-stand lift...
September 30, 2016: Research in Nursing & Health
Katell Denis, Florian Bidet, Jerome Egault, Arnaud Gautier, Pauline Coignard, Katel Rinfray, Marie-Lise Peuziat, Jean-Paul Departe, Jean-Luc Le-Guiet, Nolwenn Morisset, Nathalie Pichot, Isabelle Bonan
OBJECTIVE: Robotic systems allow to initiate and facilitate the implementation of a movement executed by the patient. The objective was to test the interest of an innovative gait robot. MATERIALS/PATIENTS AND METHODS: Eighteen patients 53.6 (±11.1) years aged, with a functional ambulation category (FAC) 0 to 5, followed 3 sessions of 45min/week with the mobile robot with body weight support during 4 weeks while maintaining conventional physiotherapy sessions. This evolutionary robot provides, in stationary mode balance training safely through suspension, and in mobile mode gait training according to various trajectories...
September 2016: Annals of Physical and Rehabilitation Medicine
Kevin D Dames, Jeremy D Smith
Kinetic and kinematic responses during walking vary by footwear condition. Load carriage also influences gait patterns, but it is unclear how an external load influences barefoot walking. Twelve healthy adults (5 women, 7 men) with no known gait abnormalities participated in this study (age=23±3years, height=1.73±0.11m, and mass=70.90±12.67kg). Ground reaction forces and 3D motion were simultaneously collected during overground walking at 1.5ms(-1) in four conditions: Barefoot Unloaded, Shod Unloaded, Barefoot Loaded, and Shod Loaded...
September 11, 2016: Gait & Posture
Miao Tian, Huiju Park, Heekwang Koo, Qinwen Xu, Jun Li
Effects of work boots and load carriage (6.4 kg and 12.8 kg) on gait pattern were investigated. The protective work boots was examined by compared to running shoes through human performance tests with fifteen male participants. The loads were carried symmetrically and asymmetrically on shoulder and hand. Statistical data analysis shows the prolonged stance phase and decreased double support for work boots. A significantly increased ground reaction force was found in work boots conditions as the weight of loads increases...
July 21, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
Ge Lv, Hanqi Zhu, Toby Elery, Luwei Li, Robert D Gregg
Traditional control methodologies of rehabilitation orthoses/exoskeletons aim at replicating normal kinematics and thus fall into the category of kinematic control. This control paradigm depends on pre-defined reference trajectories, which can be difficult to adjust between different locomotor tasks and human subjects. An alternative control category, kinetic control, enforces kinetic goals (e.g., torques or energy) instead of kinematic trajectories, which could provide a flexible learning environment for the user while freeing up therapists to make corrections...
May 2016: IEEE International Conference on Robotics and Automation: ICRA: [proceedings]
Junwei Zhu, Lei Zhang, Yong Chen, Jianning Zhao
Obesity is strongly associated with musculoskeletal disorders of the lower limb, including ankle instability and resulting gait problems. In the present study, we aimed to examine, using paired comparisons of subjects, whether moderate duration of obesity in patients with mild to moderate elevations of body mass index (BMI), changes the fibrous contents of muscles that support the ankle mortices, namely calf and plantar muscles. We attempted to examine these parameters because this shall provide direct evidence of whether obesity directly impacts myoarchitecture and support of the adjoining joints...
August 2016: Bioscience Reports
Simone V Gill, Michael K Walsh, Jacob A Pratt, Nima Toosizadeh, Bijan Najafi, Thomas G Travison
BACKGROUND: Obesity has a negative impact on motor function, leading to an increase in fall risk. Massive weight loss improves some aspects of gait on flat ground. However, we have little information about whether gait changes during flat-ground walking and during more complex motor tasks beyond flat-ground walking. OBJECTIVES: Our objectives were to examine how massive weight loss after Roux-en-Y bariatric surgery affects gait during flat-ground walking and obstacle crossing 1 year postsurgery...
June 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Andrew C Dragunas, Keith E Gordon
Body weight support (BWS) systems are a common tool used in gait rehabilitation. BWS systems may alter the requirements for an individual to actively stabilize by 1) providing lateral restoring forces that reduce the requirements for the nervous system to actively stabilize and 2) decreasing the stabilizing gravitational moment in the frontal plane, which could increase the requirements to actively stabilize. The goal of the current study was to quantify the interaction between BWS and lateral stability. We hypothesized that when able-bodied people walk with BWS: 1) the lateral restoring forces provided by BWS would reduce the requirements to stabilize in the frontal plane when comparing dynamically similar gaits, and 2) increasing BWS would decrease the stabilizing gravitational moment in the frontal plane and increase the requirements to stabilize when speed is constrained...
June 1, 2016: Journal of Biomechanics
Judith Hocking, Julian McNeil, Jared Campbell
AIM: The systematic review was undertaken to investigate the effectiveness of physical therapy interventions for improving gross motor skills (GMSs) in people with an intellectual disability aged 6 years and older. There is a lack of physical therapy research for GMSs in this population, and no prior systematic review. People with an intellectual disability may require specific teaching approaches within therapy interventions to accommodate their cognitive and learning needs. People with an intellectual disability who suffer from GMS deficits can benefit from physical therapy to help improve their GMSs...
June 2, 2016: International Journal of Evidence-based Healthcare
Klaske van Kammen, Anne M Boonstra, Lucas H V van der Woude, Heleen A Reinders-Messelink, Rob den Otter
BACKGROUND: The ability to provide automated movement guidance is unique for robot assisted gait trainers such as the Lokomat. For the design of training protocols for the Lokomat it is crucial to understand how movement guidance affects the patterning of muscle activity that underlies walking, and how these effects interact with settings for bodyweight support and gait speed. METHODS: Ten healthy participants walked in the Lokomat, with varying levels of guidance (0, 50 and 100%), bodyweight support (0 or 50% of participants' body weight) and gait speed (0...
July 2016: Clinical Biomechanics
Kyung-Ryoul Mun, Su Bin Lim, Zhao Guo, Haoyong Yu
Body weight support (BWS) promotes better functional outcomes for neurologically challenged patients. Despite the established effectiveness of BWS in gait rehabilitation, the findings on biomechanical effects of BWS training still remain contradictory. Therefore, the aim of this study is to comprehensively investigate the effects of BWS. Using a newly developed robotic walker which can facilitate pelvic motions with an active BWS unit, we compared gait parameters of ten healthy subjects during a 10-m walk with incremental levels of body weight unloading, ranging from 0 to 40 % at 10 % intervals...
May 18, 2016: Medical & Biological Engineering & Computing
Theodoros M Bampouras, Susan Dewhurst
Food shopping is an important aspect of maintaining independence and social interaction in older age. Carriage of shopping bags alters the body's weight distribution which, depending on load distribution, could potentially increase instability during standing and walking. The study examined the effect of carrying UK style shopping bags on static postural stability and gait in healthy older and young females. Nine older (71.0±6.0 years) and 10 young (26.7±5.2 years) females were assessed in five conditions carrying no bags, one 1...
May 2016: Gait & Posture
Dae-Hyouk Bang, Won-Seob Shin
BACKGROUND: Body weight-supported treadmill training assisted by a robotic gait orthosis is a helpful tool for restoring a symmetrical gait pattern in people with gait discrepancies. OBJECTIVE: This study's aim was to compare the effects of robot-assisted gait training (RAGT) versus treadmill gait training (TGT) on spatiotemporal gait parameters, balance, and activities-specific balance confidence with stroke patients. METHODS: Eighteen participants with stroke were randomly assigned to RAGT or TGT...
April 6, 2016: NeuroRehabilitation
Jeffrey Skidmore, Panagiotis Artemiadis
BACKGROUND: Robotic devices have been utilized in gait rehabilitation but have only produced moderate results when compared to conventional physiotherapy. Because bipedal walking requires neural coupling and dynamic interactions between the legs, a fundamental understanding of the sensorimotor mechanisms of inter-leg coordination during walking, which are not well understood but are systematically explored in this study, is needed to inform robotic interventions in gait therapy. METHODS: In this study we investigate mechanisms of inter-leg coordination by utilizing novel sensory perturbations created by real-time control of floor stiffness on a split-belt treadmill...
2016: Journal of Neuroengineering and Rehabilitation
Kimberly D Dahl, He Wang, Jennifer K Popp, D Clark Dickin
Backpacks lead to poor posture due to the posterior placement of the load, which overtime may contribute to low back pain and musculoskeletal complications. This study examined postural and load distribution differences between a traditional backpack (BP) and a nontraditional backpack (BTP) in a young adult population. Using a 3D motion analysis system, 24 healthy young adults (22.5 ± 2.5 years, 12 male) completed both static stance and walking trials on a treadmill with No Load and with 15% and 25% of their body weight using the two different backpacks...
March 2016: Gait & Posture
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