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Compensatory Motion During a Bilateral Lifting Task for Transradial Prosthetic Design

[+] Author Affiliations
Stephanie L. Carey, M. Jason Highsmith, Rajiv Dubey

University of South Florida, Tampa, FL

Paper No. SBC2007-176474, pp. 731-732; 2 pages
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5
  • Copyright © 2007 by ASME


Current improvements in the design of a transradial prosthesis include advanced technology in control systems and electronics that improve its functions. However these improvements often require excess mass distally along the prosthesis. A transradial prosthesis without a dynamic wrist component may cause awkward compensatory motion in the shoulder and elbow. It may be important to consider bilateral tasks such as lifting a 2.27 kg (5 lb.) box during the design process of a transradial prosthesis. The main purpose of this study was to determine if restricting motion of the wrist and forearm and thus simulating a basic transradial prosthesis, would cause significant compensatory movement(s) at the shoulder and elbow of either the affected or non-affected limbs during a bilateral lifting task. The second purpose of the study was to determine if the location of added mass of 96 g (mass of an electrical wrist rotator) would affect shoulder and elbow angles of both sides during the lifting task.

Copyright © 2007 by ASME



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