The Effects of Exercise on the Biomechanical and Biochemical Properties of Swine Digital Flexor Tendons

[+] Author and Article Information
S. L.-Y. Woo, M. A. Gomez, D. Amiel, M. A. Ritter, R. H. Gelberman, W. H. Akeson

Division of Orthopaedic Surgery and Rehabilitation, University of California, San Diego, and San Diego Veteran’s Administration Medical Center, La Jolla, Calif. 92093

J Biomech Eng 103(1), 51-56 (Feb 01, 1981) (6 pages) doi:10.1115/1.3138246 History: Received November 05, 1980; Online June 15, 2009


The digital flexor tendons of the miniature swine were studied after 12 mo of running exercise. Using a newly developed methodology whereby the properties of tendon substance and tendon-bone composite are measured simultaneously, it was found that training augments the strength of the tendon insertion site, but has minimal effect on the tendon substance. Biochemical analyses also showed that the collagen concentration in the tendon substance remains unchanged following exercise. There was also moderate, but not significant, tendon hypertrophy. The present results on flexor tendon differ from those previously obtained for the swine digital extensors [6]. Such difference in response to functional stress may be attributed to the biochemical composition and mechanical properties of these tissues.

Copyright © 1981 by ASME
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