NDLI: An elbow extension neuroprosthesis for individuals with tetraplegia

Content Provider	IEEE Xplore Digital Library
Author	Crago, P.E. Memberg, W.D. Usey, M.K. Keith, M.W. Kirsch, R.F. Chapman, G.J. Katorgi, M.A. Perreault, E.J.
Copyright Year	1993
Abstract	Functional electrical stimulation (FES) of the triceps to restore control of elbow extension was integrated into a portable hand grasp neuroprosthesis for use by people with cervical level spinal cord injury. An accelerometer mounted on the upper arm activated triceps stimulation when the arm was raised above a predetermined threshold angle. Elbow posture was controlled by the subjects voluntarily flexing to counteract the stimulated elbow extension. The elbow moments created by the stimulated triceps were at least 4 N/spl middot/m, which was sufficient to extend the arm against gravity. Electrical stimulation of the triceps increased the range of locations and orientations in the workspace over which subjects could grasp and move objects. In addition, object acquisition speed was increased. Thus elbow extension enhances a person's ability to grasp and manipulate objects in an unstructured environment.
Sponsorship	IEEE Computer Society
Starting Page	1
Ending Page	6
Page Count	6
File Size	121164
File Format	PDF
ISSN	10636528
Volume Number	6
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-03-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Elbow Shoulder Gravity Spinal cord injury Asia Biomedical engineering Arm Neuromuscular stimulation Accelerometers Electrical stimulation
Content Type	Text
Resource Type	Article
Subject	Engineering

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