Walker-assisted gait in rehabilitation: a study of biomechanics and instrumentation
- 1 March 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Neural Systems and Rehabilitation Engineering
- Vol. 9 (1), 96-105
- https://doi.org/10.1109/7333.918282
Abstract
While walkers are commonly prescribed to improve patient stability and ambulatory ability, quantitative study of the biomechanical and functional requirements for effective walker use is limited. To date no one has addressed the changes in upper extremity kinetics that occur with the use of a standard walker, which was the objective of this study. A strain gauge-based walker instrumentation system was developed for the six degree-of-freedom measurement of resultant subject hand loads. The walker dynamometer was integrated with an upper extremity biomechanical model. Preliminary system data were collected for seven healthy, right-handed young adults following informed consent. Bilateral upper extremity kinematic data were acquired with a six camera Vicon motion analysis system using a Micro-VAX workstation. Internal joint moments at the wrist, elbow, and shoulder were determined in the three clinical planes using the inverse dynamics method. The walker dynamometer system allowed characterization of upper extremity loading demands. Significantly differing upper extremity loading patterns were Identified for three walker usage methods. Complete description of upper extremity kinetics and kinematics during walker-assisted gait may provide insight into walker design parameters and rehabilitative strategies.Keywords
This publication has 28 references indexed in Scilit:
- Pushrim forces and joint kinetics during wheelchair propulsionArchives of Physical Medicine and Rehabilitation, 1996
- Biomechanical analysis of swing-through gait in paraplegic and non-disabled individualsJournal of Biomechanics, 1995
- Comparative Kinematics of Two Walking Frame GaitsJournal of Orthopaedic & Sports Physical Therapy, 1994
- The Effects of Assistive Devices on the Oxygen Cost, Cardiovascular Stress, and Perception of Nonweight-Bearing AmbulationJournal of Orthopaedic & Sports Physical Therapy, 1993
- Kinematics of walking frame ambulationClinical Biomechanics, 1993
- Reciprocal aided gait in paraplegiaSpinal Cord, 1990
- Walking frames.BMJ, 1990
- The appropriate use of regression equations for the estimation of segmental inertia parametersJournal of Biomechanics, 1989
- Measurement and reduction of noise in kinematics of locomotionJournal of Biomechanics, 1974
- Energy expenditure in assisted ambulationJournal of Chronic Diseases, 1958