0
RESEARCH PAPERS

Analytical Description of Minimum Energy Expenditure Surfaces

[+] Author and Article Information
D. J. Winarski

IBM Corporation, General Products Division, Tucson, Ariz. 85744

J. R. Pearson

The University of Michigan, Ann Arbor, Mich. 48109

J Biomech Eng 110(4), 386-391 (Nov 01, 1988) (6 pages) doi:10.1115/1.3108457 History: Received March 07, 1988; Revised June 23, 1988; Online June 12, 2009

Abstract

Mechanical energy expenditure during level walking was evaluated and graphed for two unilateral, below-knee amputees over time and a range of adjustments of the flexion-extension alignment angle. The resulting mechanical energy surfaces were then least-squared fitted with an analytical function that was linear in time and quadratic in flexion-extension alignment angle. The least-squares analysis showed that there was a flexion-extension adjustment that minimized the mechanical energy expenditure and that this optimal adjustment was very close to the design point set by certified prosthetists.

Copyright © 1988 by ASME
Topics: Design , Knee
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In