Article
Development and evaluation of a mechanical stance controlled orthotic knee joint with stance flexion utilizing a timing based control strategy flexion
Journal of Mechanical Design
(2017)
Abstract
Stance-control orthotic knee joints stabilize the knee joint during the weight-bearing portion of gait without restricting swing-phase flexion, thus achieving a more normal gait for individuals with quadriceps muscle weakness. These devices must be designed around well-defined stance-control strategies that enable or hinder joint motion at specific events during the gait cycle. This paper presents a new type of stance-control strategy and a novel stance-controller design. Pilot clinical testing was performed on a prototype, demonstrating feasibility of this approach for providing reliable knee stability while facilitating swing-phase flexion. In particular, 44 deg of swing-phase flexion and 15 deg of stance-phase flexion were achieved during level walking. Further testing is needed in situ to provide additional validation and assess other mobility conditions.
Disciplines
Publication Date
January 16, 2017
DOI
10.1115/1.4035372
Publisher Statement
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Citation Information
Jan Andrysek, Matthew Leineweber and Hankyu Lee. "Development and evaluation of a mechanical stance controlled orthotic knee joint with stance flexion utilizing a timing based control strategy flexion" Journal of Mechanical Design Vol. 139 Iss. 3 (2017) ISSN: 0148-0731 Available at: http://works.bepress.com/matthew-leineweber/3/