A critical examination of the maximum velocity of shortening used in simulation models of human movement

Zachary J. Domire and John H. Challis

Computer Methods in Biomechanics and Biomedical Engineering, 2010, vol. 13, issue 6, 693-699

Abstract: The maximum velocity of shortening of a muscle is an important parameter in musculoskeletal models. The most commonly used values are derived from animal studies; however, these values are well above the values that have been reported for human muscle. The purpose of this study was to examine the sensitivity of simulations of maximum vertical jumping performance to the parameters describing the force–velocity properties of muscle. Simulations performed with parameters derived from animal studies were similar to measured jump heights from previous experimental studies. While simulations performed with parameters derived from human muscle were much lower than previously measured jump heights. If current measurements of maximum shortening velocity in human muscle are correct, a compensating error must exist. Of the possible compensating errors that could produce this discrepancy, it was concluded that reduced muscle fibre excursion is the most likely candidate.

Date: 2010
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DOI: 10.1080/10255840903453082

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