B16 胸腰部筋骨格モデルを用いた腰椎負荷の計算(筋骨格系のバイオメカニクス1)

概要

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Spine structure is mainly constructed of many vertebrae and flexible intervertebral disks, and it is unstable by itself under standing condition. Supporting by erector muscles and ligaments keep the spine standing condition, so that boundary condition of each vertebra depend on the muscle and ligament forces. Moment applied to vertebra by intervertebral disk deformation also has to be considered for the boundary condition of vertebra. Biomechanical simulation of musculoskeletal model taking account of muscle and ligament forces and intervertebral joint moments is necessary to determine the boundary condition of vertebral analysis. In this study, a thoracolumber musculoskeletal model around lumber vertebrae and hip joint was developed, and loading condition of each vertebra was analyzed considering muscle and ligament forces and joint moments. Muscle forces and intervertebral joint moments were evaluated varying flexion or extension angle, and efficiency of the musculoskeletal model and proposed method to obtain the muscle forces and intervertebral joint moments was discussed.
一般社団法人日本機械学会の論文
2006-11-08