Development of a musculoskeletal model reflecting force generation characteristics of a subject

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K16444
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Sports science
• Research Institution: Osaka City University
• Principal Investigator: SUZUKI Yuta 大阪市立大学, 都市健康・スポーツ研究センター, 講師 (90747825)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 跳躍動作 / 関節トルク / 筋骨格モデル / シミュレーション / 最適化

Outline of Final Research Achievements

The purpose of this study was to develop a musculoskeletal model reflecting force generation characteristics of a subject. We measured isometric and isokinetic joint extension moments of lower limb joints to estimate the muscles’ parameters, such as physiological cross-sectional areas and fiber lengths, used in the musculoskeletal model. For estimation of muscles’ parameters, the motions of joint moment measurements were simulated, and the parameters were optimized to minimize differences between measured and calculated joint moments. Vertical squat jump motions were simulated using the estimated parameters. The results of this study suggest that the developed system could improve estimation accuracy of muscle forces during sport motions.

Free Research Field

スポーツバイオメカニクス