B14 跳躍運動における地面反力を推定する粘弾性モデルの妥当性の検討(跳躍)

概要

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The purpose of this study was to consider validity of the models used to simulate the vertical ground reaction force (GRF) of hopping with tibial acceleration. Eight healthy male subjects volunteered to perform hopping at fixed rhythm. We simulated the measured vertical GRF using the objective function in three suggested viscoelastic models. We then compared leg stiffness in several methods and joint stiffness calculated from data of motion analysis, and spring and combined spring coefficient of optimized model parameter in all models and leg stiffness calculated by simulated vertical GRF. The result showed that there were significant differences between leg stiffness calculated from measured values, and combined spring coefficient and leg stiffness calculated from simulated values. In two models, leg stiffness calculated form simulated value, however, showed closer value to measured leg stiffness than that of the other model.
社団法人日本機械学会の論文
2007-11-13