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Raschke, U.,Chaffin, D. B. 한국경영과학회 1996 한국경영과학회 학술대회논문집 Vol.- No.1
This study investigated the length-tension and velocity-force relations of the torso erecters. A myoelectric based approach was used wherein a dynamic biomechanical model incorporating active and passive tissue characteristics provided muscle kinematic estimates during controlled sagittal plane extension motions. A double linear optimization formulation from the literature provided muscle tension estimates. The data supported a linear length-tension relation toward full flexion for both the erector spinae and latissimus muscles. Velocity trends agreed with that predicted by Hill's exponential relation. The results have implications for muscle tension estimation in biomechanical torso modeling, and suggest a possible low back pain injury mechanism.