腰痛防止姿勢制御装置付き車椅子の開発研究 (第1報) : 腰痛評価を考慮した人体等価モデルの構築

概要

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Now, a wheelchair is being used widely. However many users have troubled for lumbago. In this research, lumbago prevention was approached by biomechanics and control engineering. As premise, lumbago was defined as rotation of a pelvis and change of a lumbar vertebra curve being the causes. Therefore, it approximates posture to the ideal vertebral column curvature, in order to prevent lumbago. Then, first, the inclined angie of a pelvis and the curve radius of a lumbar vertebra in various seating positions were considered. Based on it, in order to reproduce posture change on a computer and evaluate lumbago, human equivalent model was created in analyzing anatomy in detail. Here, modeling was carried out by three sides, frame, mass and muscular. Posture change was simulated using the model which simplified the previous one on the software DADS. The simulation result of the evaluation model was able to express mathematically change of a lumbar vertebra curve as evaluation of an ache. As a result, it was venfled that the built model is appropriate to evaluate lumbago. Furthermore this paper proposed the wheelchair with posture control for lumbago prevention adopting a swing seat, a lumbar support, and a pelvis support.
公益社団法人精密工学会の論文
2002-11-05