tailieunhanh - báo cáo hóa học: "A pneumatically powered knee-ankle-foot orthosis (KAFO) with myoelectric activation and inhibition"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A pneumatically powered knee-ankle-foot orthosis (KAFO) with myoelectric activation and inhibition | Journal of NeuroEngineering and Rehabilitation BioMed Central Research A pneumatically powered knee-ankle-foot orthosis KAFO with myoelectric activation and inhibition Gregory S Sawicki 1 2 and Daniel P Ferris1 3 4 Open Access Address 1Human Neuromechanics Laboratory School of Kinesiology University of Michigan 401 Washtenaw Avenue Ann Arbor Michigan 48109-2214 USA 2Department of Mechanical Engineering University of Michigan Ann Arbor Michigan USA 3Department of Biomedical Engineering University of Michigan Ann Arbor Michigan USA and 4Department of Physical Medicine and Rehabilitation University of Michigan Michigan Ann Arbor USA Email Gregory S Sawicki - gsawicki@ Daniel P Ferris - ferrisdp@ Corresponding author Published 23 June 2009 Received 27 January 2009 Journal of NeuroEngineering and Rehabilitation 2009 6 23 doi 1743-0003-6-23 Accepted 23 June 2009 This article is available from http content 6 1 23 2009 Sawicki and Ferris licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract_ Background The goal of this study was to test the mechanical performance of a prototype kneeankle-foot orthosis KAFO powered by artificial pneumatic muscles during human walking. We had previously built a powered ankle-foot orthosis AFO and used it effectively in studies on human motor adaptation locomotion energetics and gait rehabilitation. Extending the previous AFO to a KAFO presented additional challenges related to the force-length properties of the artificial pneumatic muscles and the presence of multiple antagonistic artificial pneumatic muscle pairs. Methods Three healthy males were fitted with .