The Experts below are selected from a list of 2595 Experts worldwide ranked by ideXlab platform

Alberto J. Espay - One of the best experts on this subject based on the ideXlab platform.

  • Writing Orthotic Device for the Management of Writer’s Cramp
    Frontiers in Neurology, 2013
    Co-Authors: Narayanasarma V. Singam, Alok Dwivedi, Alberto J. Espay
    Abstract:

    Background: Oral therapies and chemodenervation procedures are often unrewarding in the treatment of focal, task-specific hand disorders such as writer's cramp or primary writing tremor. Methods: A portable writing Orthotic Device was evaluated on fifteen consecutively recruited writer's cramp and primary writing tremor subjects. We measured overall impairment at baseline and after two weeks of at-home use with the Writer’s Cramp Rating Scale (range = 0-8, higher is worse) and writing quality and comfort with a visual analog scale (range = 0-10). Results: Compared to regular pen, the writing Orthotic Device improved the Writer's Cramp Rating Scale scores at first-test (p=0.001) and re-test (p=0.005) as well as writing quality and Device comfort in writer's cramp subjects. Benefits were sustained at two weeks. Primary writing tremor subjects demonstrated no improvements. Conclusions: Writing Orthotic Devices exploiting a muscle-substitution strategy may yield immediate benefits in patients with writer's cramp.

  • writing Orthotic Device for the management of writer s cramp
    Frontiers in Neurology, 2013
    Co-Authors: Narayanasarma V. Singam, Alok Kumar Dwivedi, Alberto J. Espay
    Abstract:

    Background: Oral therapies and chemodenervation procedures are often unrewarding in the treatment of focal, task-specific hand disorders such as writer's cramp or primary writing tremor. Methods: A portable writing Orthotic Device was evaluated on fifteen consecutively recruited writer's cramp and primary writing tremor subjects. We measured overall impairment at baseline and after two weeks of at-home use with the Writer’s Cramp Rating Scale (range = 0-8, higher is worse) and writing quality and comfort with a visual analog scale (range = 0-10). Results: Compared to regular pen, the writing Orthotic Device improved the Writer's Cramp Rating Scale scores at first-test (p=0.001) and re-test (p=0.005) as well as writing quality and Device comfort in writer's cramp subjects. Benefits were sustained at two weeks. Primary writing tremor subjects demonstrated no improvements. Conclusions: Writing Orthotic Devices exploiting a muscle-substitution strategy may yield immediate benefits in patients with writer's cramp.

Narayanasarma V. Singam - One of the best experts on this subject based on the ideXlab platform.

  • Writing Orthotic Device for the Management of Writer’s Cramp
    Frontiers in Neurology, 2013
    Co-Authors: Narayanasarma V. Singam, Alok Dwivedi, Alberto J. Espay
    Abstract:

    Background: Oral therapies and chemodenervation procedures are often unrewarding in the treatment of focal, task-specific hand disorders such as writer's cramp or primary writing tremor. Methods: A portable writing Orthotic Device was evaluated on fifteen consecutively recruited writer's cramp and primary writing tremor subjects. We measured overall impairment at baseline and after two weeks of at-home use with the Writer’s Cramp Rating Scale (range = 0-8, higher is worse) and writing quality and comfort with a visual analog scale (range = 0-10). Results: Compared to regular pen, the writing Orthotic Device improved the Writer's Cramp Rating Scale scores at first-test (p=0.001) and re-test (p=0.005) as well as writing quality and Device comfort in writer's cramp subjects. Benefits were sustained at two weeks. Primary writing tremor subjects demonstrated no improvements. Conclusions: Writing Orthotic Devices exploiting a muscle-substitution strategy may yield immediate benefits in patients with writer's cramp.

  • writing Orthotic Device for the management of writer s cramp
    Frontiers in Neurology, 2013
    Co-Authors: Narayanasarma V. Singam, Alok Kumar Dwivedi, Alberto J. Espay
    Abstract:

    Background: Oral therapies and chemodenervation procedures are often unrewarding in the treatment of focal, task-specific hand disorders such as writer's cramp or primary writing tremor. Methods: A portable writing Orthotic Device was evaluated on fifteen consecutively recruited writer's cramp and primary writing tremor subjects. We measured overall impairment at baseline and after two weeks of at-home use with the Writer’s Cramp Rating Scale (range = 0-8, higher is worse) and writing quality and comfort with a visual analog scale (range = 0-10). Results: Compared to regular pen, the writing Orthotic Device improved the Writer's Cramp Rating Scale scores at first-test (p=0.001) and re-test (p=0.005) as well as writing quality and Device comfort in writer's cramp subjects. Benefits were sustained at two weeks. Primary writing tremor subjects demonstrated no improvements. Conclusions: Writing Orthotic Devices exploiting a muscle-substitution strategy may yield immediate benefits in patients with writer's cramp.

Eric Kerckhofs - One of the best experts on this subject based on the ideXlab platform.

  • Neurological patients and their lower limb Orthotics: An observational pilot study about acceptance and satisfaction.
    Prosthetics and Orthotics International, 2016
    Co-Authors: Eva Swinnen, Christophe Lafosse, Johan Van Nieuwenhoven, Stephan Ilsbroukx, David Beckwée, Eric Kerckhofs
    Abstract:

    Background:Although an Orthotic Device of the lower limb improves the functionality of neurological patients, anecdotally clinical experience suggests that the compliance is rather limited.Objectives:The aim was to determine the satisfaction and acceptance of a lower limb Orthotic Device.Study design:A qualitative observational pilot study with a mix-method design.Methods:Adult neurological patients who had a prescribed lower limb Orthotic Device were included. One published and clinically used questionnaire about satisfaction (D-Quest) and one ad hoc constructed questionnaire about acceptance of the Orthotic Device (MIRAD-ACCORT questionnaire) were used for data collection.Results:In total, 33 patients participated (28 ankle–foot Orthotic Device, 3 knee–ankle–foot Orthotic Device and 2 other types). In general, they were satisfied about their Orthotic Device and the services. Less than one-fourth of the patients had some negative comments about the ‘visual aspects’ and the ‘ability to hide’ of their orth...

  • Compliance of patients wearing an Orthotic Device or orthopedic shoes: A systematic review
    Journal of Bodywork and Movement Therapies, 2015
    Co-Authors: Eva Swinnen, Eric Kerckhofs
    Abstract:

    Background: Alongside the positive effects of use of Orthotic Devices for the lower extremities (ODLE) and orthopedic shoes, complaints and criticism by users possibly lead to non-compliance. Objective: The purpose is to determine the compliance of patients wearing an ODLE or orthopedic shoes and to describe the main reasons for using and not using. Methods: Different online databases were searched for articles about patients' compliance with regard to an ODLE or orthopedic shoes. A methodological quality control was conducted. Results: Ten studies (1576 patients) were included. The data revealed between 6 and 80% not users. Several reasons for not using the Orthotic Device were described (e.g. pain, discomfort and cosmetically unacceptable). Conclusions: The high percentage of patients who are not wearing the prescribed Orthotic Devices leads to a high financial loss for society and a waste of therapeutic effort. These results should be taken into account during the design, construction and selection process of Orthotic Devices.

Radhika Nagpal - One of the best experts on this subject based on the ideXlab platform.

  • Design and control of a bio-inspired soft wearable robotic Device for ankle-foot rehabilitation
    Bioinspiration and Biomimetics, 2014
    Co-Authors: Yong-lae Park, N??stor O. P??rez-arancibia, Diana Young, Leia Stirling, Eugene C. Goldfield, Bor-rong Chen, Robert J. Wood, Radhika Nagpal
    Abstract:

    We describe the design and control of a wearable robotic Device powered by pneumatic artificial muscle actuators for use in ankle-foot rehabilitation. The design is inspired by the biological musculoskeletal system of the human foot and lower leg, mimicking the morphology and the functionality of the biological muscle-tendon-ligament structure. A key feature of the Device is its soft structure that provides active assistance without restricting natural degrees of freedom at the ankle joint. Four pneumatic artificial muscles assist dorsiflexion and plantarflexion as well as inversion and eversion. The prototype is also equipped with various embedded sensors for gait pattern analysis. For the subject tested, the prototype is capable of generating an ankle range of motion of 27° (14° dorsiflexion and 13° plantarflexion). The controllability of the system is experimentally demonstrated using a linear time-invariant (LTI) controller. The controller is found using an identified LTI model of the system, resulting from the interaction of the soft Orthotic Device with a human leg, and model-based classical control design techniques. The suitability of the proposed control strategy is demonstrated with several angle-reference following experiments.

  • bio inspired active soft Orthotic Device for ankle foot pathologies
    Intelligent Robots and Systems, 2011
    Co-Authors: Yong-lae Park, Diana Young, Leia Stirling, Eugene C. Goldfield, Bor-rong Chen, Robert J. Wood, Radhika Nagpal
    Abstract:

    We describe the design of an active soft ankle-foot Orthotic Device powered by pneumatic artificial muscles for treating gait pathologies associated with neuromuscular disorders. The design is inspired by the biological musculoskeletal system of a human foot and a lower leg, and mimics the muscle-tendon-ligament structure. A key feature of the Device is that it is fabricated with flexible and soft materials that provide assistance without restricting degrees of freedom at the ankle joint. Three pneumatic artificial muscles assist dorsiflexion as well as inversion and eversion. The prototype is also equipped with various embedded sensors for gait training and gait pattern analysis. The prototype is capable of 12° dorsiflexion from a resting position of an ankle joint and a 20° dorsiflexion from plantarflexion. Results of early feedback control experiments show controllability of ankle joint angles. Ultimately, we envision a system that not only can provide physical support to improve mobility but also can increase safety and stability during walking, while enhancing muscle usage and encouraging rehabilitation.

  • IROS - Bio-inspired active soft Orthotic Device for ankle foot pathologies
    2011 IEEE RSJ International Conference on Intelligent Robots and Systems, 2011
    Co-Authors: Yong-lae Park, Diana Young, Leia Stirling, Eugene C. Goldfield, Bor-rong Chen, Robert J. Wood, Radhika Nagpal
    Abstract:

    We describe the design of an active soft ankle-foot Orthotic Device powered by pneumatic artificial muscles for treating gait pathologies associated with neuromuscular disorders. The design is inspired by the biological musculoskeletal system of a human foot and a lower leg, and mimics the muscle-tendon-ligament structure. A key feature of the Device is that it is fabricated with flexible and soft materials that provide assistance without restricting degrees of freedom at the ankle joint. Three pneumatic artificial muscles assist dorsiflexion as well as inversion and eversion. The prototype is also equipped with various embedded sensors for gait training and gait pattern analysis. The prototype is capable of 12° dorsiflexion from a resting position of an ankle joint and a 20° dorsiflexion from plantarflexion. Results of early feedback control experiments show controllability of ankle joint angles. Ultimately, we envision a system that not only can provide physical support to improve mobility but also can increase safety and stability during walking, while enhancing muscle usage and encouraging rehabilitation.

P. Canavan - One of the best experts on this subject based on the ideXlab platform.

  • Active Knee Rehabilitation Orthotic Device With Variable Damping Characteristics Implemented via an Electrorheological Fluid
    IEEE-ASME Transactions on Mechatronics, 2010
    Co-Authors: J. Nikitczuk, Brian Weinberg, P. Canavan, Constantinos Mavroidis
    Abstract:

    This paper presents a novel, smart, and portable active knee rehabilitation Orthotic Device (AKROD) that provides variable damping at the knee joint, controlled in ways that can facilitate motor recovery in poststroke and other neurological disease patients, and to accelerate recovery in knee injury patients. The key features of AKROD include a compact, lightweight design, with highly tunable resistive torque capabilities through a variable damper component that is achieved through an electrorheological fluid (ERF) smart brake. Closed-loop torque and velocity controllers based on adaptive nonlinear control methodologies were developed and successfully implemented on the ERF brake. Preliminary testing of AKROD was performed using nine healthy subjects executing a set of isokinetic and isotonic exercises. These results were compared with exactly the same tests performed on a modern day computer controlled rehabilitation resistance machine, a Biodex System 3. The results showed comparable accuracy and repeatability between the two Devices.

  • Design, Control and Human Testing of an Active Knee Rehabilitation Orthotic Device
    Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
    Co-Authors: B. Weinberg, J. Nikitczuk, Constantinos Mavroidis, S. Patel, B. Patritti, P. Bonato, P. Canavan
    Abstract:

    This paper presents a novel, smart and portable active knee rehabilitation Orthotic Device (AKROD) designed to train stroke patients to correct knee hyperextension during stance and stiff-legged gait (defined as reduced knee flexion during swing). The knee brace provides variable damping controlled in ways that foster motor recovery in stroke patients. A resistive, variable damper, electro-rheological fluid (ERF) based component is used to facilitate knee flexion during stance by providing resistance to knee buckling. Furthermore, the knee brace is used to assist in knee control during swing, i.e. to allow patients to achieve adequate knee flexion for toe clearance and adequate knee extension in preparation to heel strike. The detailed design of AKROD, the first prototype built, closed loop control results and initial human testing are presented here

  • ICRA - Design, Control and Human Testing of an Active Knee Rehabilitation Orthotic Device
    Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
    Co-Authors: Brian Weinberg, J. Nikitczuk, Constantinos Mavroidis, S. Patel, B. Patritti, P. Bonato, P. Canavan
    Abstract:

    This paper presents a novel, smart and portable active knee rehabilitation Orthotic Device (AKROD) designed to train stroke patients to correct knee hyperextension during stance and stiff-legged gait (defined as reduced knee flexion during swing). The knee brace provides variable damping controlled in ways that foster motor recovery in stroke patients. A resistive, variable damper, electro-rheological fluid (ERF) based component is used to facilitate knee flexion during stance by providing resistance to knee buckling. Furthermore, the knee brace is used to assist in knee control during swing, i.e. to allow patients to achieve adequate knee flexion for toe clearance and adequate knee extension in preparation to heel strike. The detailed design of AKROD, the first prototype built, closed loop control results and initial human testing are presented here