著者

小嶋 美生 丸山 剛生

出版者

一般社団法人日本機械学会

雑誌

シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集 : symposium on sports and human dynamics

巻号頁・発行日

vol.2011, pp.122-126, 2011-10-30

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The purpose of this study was to investigate the effect on back load during lifting movement by varying lower limb and trunk posture. Seven subjects performed lifting movements with four conditions, using two foot positions (Odeg, 60deg), and two trunk postures (Neutral, Stoop). 3D kinematics and kinetics data were recorded. Significant decreases in peak right bending angle at L4/L5 and T9/T10 joint were found when subjects rotate right hip joint externally. Stoop posture decreases peak joint reaction force for pelvis longitudinal axis but increases peak left bending toque. To perform lifting movement safely, it is recommended that you rotate hip joint externally and keep trunk neutrally.