Relationship between mechanical properties of bi-articular muscles at the lower extremities and the energy absorbing system during the landing motion

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420229
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Intelligent mechanics/Mechanical systems
• Research Institution: Osaka Electro-Communication University
• Principal Investigator: FUJIKAWA Tomohiko 大阪電気通信大学, 医療福祉工学部, 教授 (80321420)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 二関節筋 / 着地動作 / モデル解析 / 大腿直筋 / ハムストリングス / 同時放電 / 三対６筋

Outline of Final Research Achievements

The existence of bi-articular muscles greatly contributes to hybrid position and force control, and compliance control of the end point of extremities. EMG analysis shows that, during heel contact, the electrical discharges occur simultaneously in the pair of antagonistic bi-articular muscles, contributed to control of the output force direction. The theoretical robotics analysis shows that this simultaneous electrical discharge is necessary for controlling both the output forces at the heel as the point of contact, and the stiffness ellipse.

Free Research Field

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