Analyses of Four Swimming Strokes by a Whole Body Musculoskeletal Simulator for Swimming

Bibliographic Information

Other Title
  • 水泳用全身筋骨格シミュレータによる4泳法の解析

Abstract

<p>There have not yet been any musculoskeletal analysis of swimming, since it has been difficult to compute the fluid force acting on the whole body of a swimmer. Therefore, in order to make the musculo-skeletal analysis of swimming feasible, we developed a whole body musculoskeletal simulator for swimming. Two simulation models were integrated in this simulator. The first was the swimming human simulation model SWUM, which was developed by the authors and is capable of computing the fluid force acting on the whole body of a swimmer. The other model was the AnyBody Modeling System for musculoskeletal analysis. In this study, we first developed data transformation methods for transforming the output data from SWUM (body geometry, joint motion and fluid force) into input data for musculoskeletal analysis. Next, we constructed an integrated simulator by implementing these data transformation methods within a piece software also including SWUM. Using the simulator so developed, we conducted analyses of the four swimming strokes (crawl, breast, back, and butterfly). In addition, we examined the validity of this simulator by comparing its analytical results with the experimental results from previous electromyogram studies. The results of the comparison show good agreement between the analysis and experiments with respect to the timing of muscle activity, indicating that the simulator is sufficiently valid to estimate the timing of the muscle activity.</p>

Journal

  • Biomechanisms

    Biomechanisms 19 (0), 81-90, 2008

    Society of Biomechanisms

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