NDLI: Increased range of motion and decreased muscle activity during maximal reach with gravity compensation in stroke patients

Content Provider	IEEE Xplore Digital Library
Author	Prange, G.B. Stienen, A.H.A. Jannink, M.J.A. van der Kooij, H. IJzerman, M.J. Hermens, H.J.
Copyright Year	2007
Description	Author affiliation: Roessingh R&D, Enschede (Prange, G.B.; Jannink, M.J.A.)
Abstract	To stimulate restoration of arm function after stroke, active movement is important, which can be facilitated by supporting the weight of the hemiparetic arm, either in conventional treatment or in other approaches such as robot-aided therapy. During arm support, the active range of motion during reach can increase with respect to unsupported movements. The present objective was to investigate the influence of gravity compensation on muscle activity and range of motion during maximal reach. Six stroke patients performed maximal reaching movements, once with and once without gravity compensation. When comparing these two conditions, muscle activity decreased while range of motion increased with gravity compensation. This implies that gravity compensation may facilitate active arm movements, by reducing the required muscle activity to maintain a particular arm orientation. This may be related to a reduction of an abnormal coupling between shoulder abduction and elbow flexion when arm movements are performed with gravity compensation.
Starting Page	467
Ending Page	471
File Size	828538
Page Count	5
File Format	PDF
ISBN	9781424413195
DOI	10.1109/ICORR.2007.4428467
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-13
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Brain Senior citizens Medical treatment Shoulder Muscles Rehabilitation robotics Elbow Robots Extremities Gravity
Content Type	Text
Resource Type	Article

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