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The Effect of Overuse Activity on Achilles Tendon in an Animal Model: A Biomechanical Study

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Abstract

Musculoskeletal soft tissue injuries from athletic activities are common in the rotator cuff tendons, lateral epicondyle of the elbow, the patella tendon, and the Achilles tendon. Despite the fact that the Achilles tendon is the largest and strongest tendon in the human body, it is frequently injured in the athletic setting. To study the etiology and pathogenesis of Achilles tendon injuries, our goal was to develop a model of Achilles tendon overuse by evaluating the Achilles tendons from animals subjected to the exercise protocol previously described as overuse for the supraspinatus tendon. We hypothesized that the same exercise protocol would produce injuries to the Achilles tendon as demonstrated by changes in the cross-sectional area and biomechanical properties. While a significant injury was induced into the supraspinatus tendon, we found no changes in the Achilles tendons of these exercised animals based on gross observation, geometric measurements, and mechanical testing analyses. Although surprising, there are many possible explanations for these findings including differences in potential injury mechanisms, functional capabilities of the differing tendons, and other factors.

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Authors and Affiliations

  1. McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA

    Tung-Fu Huang, Stephanie M. Perry & Louis J. Soslowsky

  2. Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan

    Tung-Fu Huang

  3. School of Medicine, National Yang-Ming University, Taipei, Taiwan

    Tung-Fu Huang

Authors
  1. Tung-Fu Huang
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  2. Stephanie M. Perry
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  3. Louis J. Soslowsky
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Huang, TF., Perry, S.M. & Soslowsky, L.J. The Effect of Overuse Activity on Achilles Tendon in an Animal Model: A Biomechanical Study. Annals of Biomedical Engineering 32, 336–341 (2004). https://doi.org/10.1023/B:ABME.0000017537.26426.76

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  • DOI: https://doi.org/10.1023/B:ABME.0000017537.26426.76

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