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https://www.readbyqxmd.com/read/28817701/effect-of-exoskeletal-joint-constraint-and-passive-resistance-on-metabolic-energy-expenditure-implications-for-walking-in-paraplegia
#1
Sarah R Chang, Rudi Kobetic, Ronald J Triolo
An important consideration in the design of a practical system to restore walking in individuals with spinal cord injury is to minimize metabolic energy demand on the user. In this study, the effects of exoskeletal constraints on metabolic energy expenditure were evaluated in able-bodied volunteers to gain insight into the demands of walking with a hybrid neuroprosthesis after paralysis. The exoskeleton had a hydraulic mechanism to reciprocally couple hip flexion and extension, unlocked hydraulic stance controlled knee mechanisms, and ankles fixed at neutral by ankle-foot orthoses...
2017: PloS One
https://www.readbyqxmd.com/read/28815571/functional-electrical-stimulation-of-the-ankle-dorsiflexors-during-walking-in-spastic-cerebral-palsy-a-systematic-review
#2
REVIEW
Irene Moll, Johannes S H Vles, Dan L H M Soudant, Adhiambo M A Witlox, Heleen M Staal, Lucianne A W M Speth, Yvonne J M Janssen-Potten, Marcel Coenen, Suzanne M Koudijs, R Jeroen Vermeulen
AIM: To assess the effect of functional electrical stimulation (FES) of ankle dorsiflexors in children and adolescents with spastic cerebral palsy (CP) during walking. METHOD: A systematic review was performed using the American Academy of Cerebral Palsy and Developmental Medicine methodology and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Six databases were searched for studies applying interventions to patients aged younger than 20 years...
August 17, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28814005/distance-based-kinematics-of-the-five-oblique-axis-thumb-model-with-intersecting-axes-at-the-metacarpophalangeal-joint
#3
Nicolas Rojas, Aaron M Dollar
This paper proposes a novel and simple method to compute all possible solutions of the inverse kinematics problem of the five-oblique-axis thumb model with intersecting axes at the metacarpophalangeal joint. This thumb model is one of the suggested results by a magnetic-resonance-imaging-based study that, in contrast to those based on cadaver fingers or on the tracking of the surface of the fingers, takes into account muscle and ligament behaviors and avoids inaccuracies resulting from the movement of the skin with respect to the bones...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813985/emg-pattern-classification-to-control-a-hand-orthosis-for-functional-grasp-assistance-after-stroke
#4
Cassie Meeker, Sangwoo Park, Lauri Bishop, Joel Stein, Matei Ciocarlie
Wearable orthoses can function both as assistive devices, which allow the user to live independently, and as rehabilitation devices, which allow the user to regain use of an impaired limb. To be fully wearable, such devices must have intuitive controls, and to improve quality of life, the device should enable the user to perform Activities of Daily Living. In this context, we explore the feasibility of using electromyography (EMG) signals to control a wearable exotendon device to enable pick and place tasks...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813888/fully-embedded-myoelectric-control-for-a-wearable-robotic-hand-orthosis
#5
Franziska Ryser, Tobias Butzer, Jeremia P Held, Olivier Lambercy, Roger Gassert
To prevent learned non-use of the affected hand in chronic stroke survivors, rehabilitative training should be continued after discharge from the hospital. Robotic hand orthoses are a promising approach for home rehabilitation. When combined with intuitive control based on electromyography, the therapy outcome can be improved. However, such systems often require extensive cabling, experience in electrode placement and connection to external computers. This paper presents the framework for a stand-alone, fully wearable and real-time myoelectric intention detection system based on the Myo armband...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813886/exploratory-design-of-a-compliant-mechanism-for-a-dynamic-hand-orthosis-lessons-learned
#6
Ronald A Bos, Dick H Plettenburg, Just L Herder
This study does not describe a success-story. Instead, it describes an exploratory process and the lessons learned while designing a compliant mechanism for a dynamic hand orthosis. Tools from engineering optimization and rapid prototyping techniques were used, with the goal to design a mechanism to compensate for hypertonic or contracted finger muscles. Results show that the mechanism did not reach its design constraints, mostly because it could not provide for the necessary stiffness and compliance at the same time...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813884/design-parameters-and-torque-profile-modification-of-a-spring-assisted-hand-opening-exoskeleton-module
#7
Nik R Butler, Stephen A Goodwin, Joel C Perry
There is a growing demand for functional rehabilitation orthotics that can effectively assist in patient recovery from motor impairments after stroke. The hand in particular is a complex system that has proven difficult to mimic with current exoskeleton technologies. This paper presents data-driven design parameters to increase the functionality and improve the assistance profile of the ArmAssist-2.0 hand module. Improvements from the previous model include adjustable linkages to fulfill the largest population of users, new joint locations to more accurately represent biomechanics of the hand, and a more impairment-appropriate torque profile to assist in hand opening, adjustable through interchangeable springs...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813853/towards-human-knee-orthosis-interaction-based-on-adaptive-impedance-control-through-stiffness-adjustment
#8
Joana Figueiredo, Paulo Felix, Cristina P Santos, Juan C Moreno
Rehabilitation interventions involving powered, wearable lower limb orthoses that can provide high-challenging locomotor tasks for repetitive training sessions, mainly when assist-as-needed strategies, such as adaptive impedance control, are designed. In this study, the adaptive behavior was ensured by software control of the robotic stiffness involved in the human-knee orthosis interaction in function of the gait cycle and speed. To estimate the stiffness, we analyzed the interaction torque-angle characteristics with experimental data...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813832/design-and-experimental-evaluation-of-a-lightweight-high-torque-and-compliant-actuator-for-an-active-ankle-foot-orthosis
#9
Marta Moltedo, Tomislav Bacek, Kevin Langlois, Karen Junius, Bram Vanderborght, Dirk Lefeber
The human ankle joint plays a crucial role during walking. At the push-off phase the ankle plantarflexors generate the highest torque among the lower limb joints during this activity. The potential of the ankle plantarflexors is affected by numerous pathologies and injuries, which cause a decrease in the ability of the subject to achieve a natural gait pattern. Active orthoses have shown to have potential in assisting these subjects. The design of such robots is very challenging due to the contrasting design requirements of wearability (light weight and compact) and high torques capacity...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28810999/case-report-on-the-use-of-a-custom-myoelectric-elbow-wrist-hand-orthosis-for-the-remediation-of-upper-extremity-paresis-and-loss-of-function-in-chronic-stroke
#10
Stefanie Dunaway, D Brianna Dezsi, Jessica Perkins, Daniel Tran, Jonathan Naft
INTRODUCTION: This case study describes the application of a commercially available, custom myoelectric elbow-wrist-hand orthosis (MEWHO), on a veteran diagnosed with chronic stroke with residual left hemiparesis. The MEWHO provides powered active assistance for elbow flexion/extension and 3 jaw chuck grip. It is a noninvasive orthosis that is driven by the user's electromyographic signal. Experience with the MEWHO and associated outcomes are reported. MATERIALS AND METHODS: The participant completed 21 outpatient occupational therapy sessions that incorporated the use of a custom MEWHO without grasp capability into traditional occupational therapy interventions...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28809655/assistive-technology-addressing-safety-issues-in-dementia-a-scoping-review
#11
Mireille Gagnon-Roy, Annick Bourget, Stéphanie Stocco, Annie-Claude Lemieux Courchesne, Nicolas Kuhne, Véronique Provencher
Safety is an issue for older adults with dementia because they are at risk for various incidents. Intelligent assistive technology (IAT) may mitigate risks while promoting independence and reducing the impact on the caregiver of supporting a relative with dementia. The aim of this scoping review was to describe IATs and to identify factors to consider when selecting one. A systematic search was performed of the scientific and gray literature published between 2000 and 2015. A total of 31 sources were included...
September 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28809624/spinal-orthoses-the-crucial-role-of-comfort-on-compliance-of-wearing-monocentric-prospective-pilot-study-of-randomized-cross-over-design
#12
G W Herget, S Patermann, P C Strohm, J Zwingmann, P Eichelberger, N P Südkamp, A Hirschmüller
PURPOSE OF THE STUDY Various spine disorders are regularly treated by orthoses, and success of treatment depends on wearing these devices. In this study we examined the compliance, wear comfort, subjective stabilization and side effects associated with spinal orthoses using an individualized questionnaire and the Compact Short Form-12 Health Survey (SF-12). MATERIAL AND METHODS In this prospective pilot study of randomized cross-over design, twelve healthy volunteers with a mean age of 31.2 years wore three different types of orthoses, each for one week: A hyperextension brace (HB), a custom-made semirigid orthosis (SO) and a custom-made rigid orthosis (RO)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28800928/post-operative-bracing-after-pedicle-screw-fixation-for-thoracolumbar-burst-fractures-a-cost-effectiveness-study
#13
REVIEW
Matthew Piazza, Saurabh Sinha, Prateek Agarwal, Arka Mallela, Nikhil Nayak, James Schuster, Sherman Stein
PURPOSE: While frequently prescribed to patients following fixation for spine trauma, the utility of spinal orthoses during the post-operative period is poorly described in the literature. In this study, we calculated rates of reoperation and performed a decision analysis to determine the utility of bracing following pedicle screw fixation for thoracic and lumbar burst fractures. METHODS: Pubmed was searched for articles published between 2005 and 2015 for terms related to pedicle screw fixation of thoracolumbar fractures...
August 8, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28767173/prevalence-presentation-and-treatment-of-lower-limb-pathologies-in-juvenile-idiopathic-arthritis-a-narrative-review
#14
REVIEW
Antoni Fellas, Fiona Hawke, Derek Santos, Andrea Coda
Juvenile idiopathic arthritis is a chronic, autoimmune, inflammatory joint disease. It is the most common arthritis in children and adolescents. This paper reviews the presentation and treatment of lower limb pathologies in juvenile idiopathic arthritis from an allied health perspective. Common lower limb pathologies include: synovitis causing swelling, tenderness and pain; persistent inflammation leading to flexion contractures; limb length discrepancies; muscle atrophy; enthesopathies such as plantar fasciitis and Achilles tendonitis; and tenosynovitis...
August 2, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28755534/treadmill-interventions-in-children-under-six-years-of-age-at-risk-of-neuromotor-delay
#15
REVIEW
Marta Valentín-Gudiol, Katrin Mattern-Baxter, Montserrat Girabent-Farrés, Caritat Bagur-Calafat, Mijna Hadders-Algra, Rosa Maria Angulo-Barroso
BACKGROUND: Delayed motor development may occur in children with Down syndrome, cerebral palsy, general developmental delay or children born preterm. It limits the child's exploration of the environment and can hinder cognitive and social-emotional development. Literature suggests that task-specific training, such as locomotor treadmill training, facilitates motor development. OBJECTIVES: To assess the effectiveness of treadmill interventions on locomotor development in children with delayed ambulation or in pre-ambulatory children (or both), who are under six years of age and who are at risk for neuromotor delay...
July 29, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28747517/a-soft-robotic-exosuit-improves-walking-in-patients-after-stroke
#16
Louis N Awad, Jaehyun Bae, Kathleen O'Donnell, Stefano M M De Rossi, Kathryn Hendron, Lizeth H Sloot, Pawel Kudzia, Stephen Allen, Kenneth G Holt, Terry D Ellis, Conor J Walsh
Stroke-induced hemiparetic gait is characteristically slow and metabolically expensive. Passive assistive devices such as ankle-foot orthoses are often prescribed to increase function and independence after stroke; however, walking remains highly impaired despite-and perhaps because of-their use. We sought to determine whether a soft wearable robot (exosuit) designed to supplement the paretic limb's residual ability to generate both forward propulsion and ground clearance could facilitate more normal walking after stroke...
July 26, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28742605/predictors-of-the-biomechanical-effects-of-customized-foot-orthoses-in-adults-with-flat-arched-feet
#17
John B Arnold, Thomas May, Christopher Bishop
OBJECTIVE: To determine the potential presence and characteristics of biomechanical responders to customized foot orthoses during walking in adults with flat-arched feet. DESIGN: Experimental, repeated-measures. SETTING: University clinic and laboratory. PARTICIPANTS: Eighteen symptom-free adults with flat-arched feet. INTERVENTIONS: Customized foot orthoses. MAIN OUTCOME MEASURES: In-shoe foot biomechanics were measured during walking with and without customized foot orthoses using 3D analysis...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28739478/an-overview-of-clinical-guidelines-for-the-management-of-vertebral-compression-fracture-a-systematic-review
#18
REVIEW
Patrícia Parreira, Chris G Maher, Rodrigo Z Megale, Lyn March, Manuela L Ferreira
BACKGROUND CONTEXT: Vertebral compression fractures are the most common type of osteoporotic fracture comprising approximately 1.4 million cases worldwide. Clinical practice guidelines can be powerful tools for promoting evidence-based practice, as they integrate research findings in order to support decision-making. However, currently available clinical guidelines and recommendations, established by different medical societies, are sometimes contradictory. PURPOSE: The aim of this study was to appraise the recommendations and methodological quality of international clinical guidelines for the management of VCFs...
July 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28738165/physical-and-mechanical-therapies-for-lower-limb-problems-in-juvenile-idiopathic-arthritis-a-systematic-review-with-meta-analysis
#19
Antoni Fellas, Andrea Coda, Fiona Hawke
BACKGROUND: Juvenile Idiopathic Arthritis (JIA) is a chronic, autoimmune, inflammatory joint disease and is the most common arthritis affecting children under 16 years of age. Children with JIA commonly experience lower limb dysfunction and disability. OBJECTIVE: To systematically review the effectiveness of physical and mechanical therapies for lower limb problems JIA. METHODS: Randomised control trials (RCT) of physical and mechanical interventions for lower limb problems in children with JIA were included...
July 24, 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28736326/tone-inhibiting-insoles-enhance-the-reciprocal-inhibition-of-ankle-plantarflexors-of-post-stroke-hemiparetic-subjects-an-electromyographic-study
#20
Nobushige Takahashi, Hidetoshi Takahashi, Osamu Takahashi, Ryosuke Ushijima, Rie Umebayashi, Junji Nishikawa, Yasutomo Okajima
BACKGROUND: Spasticity is a common sequela of upper motor neuron pathology, such as cerebrovascular diseases and cerebral palsy. Intervention for spasticity of the ankle plantarflexors in physical therapy may include tone-inhibiting casting and/or orthoses for the ankle and foot. However, the physiological mechanism of tone reduction by such orthoses remains unclarified. OBJECTIVE: To investigate the electrophysiologic effects of tone-inhibiting insoles in stroke subjects with hemiparesis by measuring changes in reciprocal Ia inhibition (RI) in the ankle plantarflexor...
July 20, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
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