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SME MS94-230
- An Evaluation Of Body-Powered Prosthesis Performance In Terms Of "Discrete Actions"
- standard by Society of Manufacturing Engineers, 06/01/1994
- Publisher: SME
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ALTHOUGH SEVERAL ARM PROSTHESIS MODELS ARE AVAILABLE, THE 1940'S DESIGNED BODY-POWERED TYPE REMAINS THE CHOICE OF AN OVERWHELMING MAJORITY OF AMPUTEES. A RECENT SET OF EXPERIMENTS DESIGNED TO COMPARE UNCONSTRAINED MOTION OF THE UNIMPAIRED ARM AND BODY-POWERED PROSTHESIS CLEARLY SHOWS THE DISCRETE ACTION PHENOMENON NOTED BY SEVERAL OTHER RESEARCHERS IN THE MOTOR CONTROL FIELD: LONG, SMOOTH HUMAN MOVEMENTS APPEAR TO BE COMPOSED OF A SERIES OF SUCCESSIVE SHORT MOVEMENTS. PERFORMANCE BASED ON DISCRETE ACTIONS YIELD INSIGHT INTO ACCURACY AND SPEED CONSTRAINTS ON THE PROSTHESIS AND JUSTIFY FUTURE STUDY OF THIS FEATURE OF MOVEMENT.
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