利用平衡板测人体运动环节重量和重心位置方法的理论推导

人体运动环节重量和重心位置是运动生物力学定量计算与分析的基础材料，如何简便、迅速地计算出受试运动员的环节惯性参数一直是本学科中从未攻克过的难题。运用平衡板测人体重心的基本原理，通过让受试者在二维平衡板上移动四肢而改变环节重心位置，同时在不动环节上附加重量的方法推算出了人体总重心与各运动环节重心之间的关系，最终得出了各运动环节的重量与重心位置。这项研究是对人体环节重量与重心位置测量的突破性探索，具有深远的意义。

Theoretical Deduction of Methods for Measuring Weights and their center of Gravity of Motor Seyments of Human Body by Applging Realtion Board

Weights and their Center of Gravity of moving segments of human body are the basic Parameterfor quantitative calculation and analysis in sport biomechanics. How to determine the segmental inertia param-eters of the athlete subjects quickly, simply and conveniently is always a difficult problem never to be solved insport biomechanics. According to the basic theory of applying reaction board to measure the body center ofgravity, by allowing the subjects to move their arms and legs on reaction board of two dimensions, and in themeantime to add the known weight on the side of static segment. the difficulty, that is to determine theweights and center of gravity of the segments, would be surmounted. The re1ationships between the total cen-ter of every rnoving segment were calculated by means of the method mentioned above. Finally, The weightand center of gravitg of every moving segment were obtained. The study is a breakthrough exploration of themeasurement of weights and center of gravity of human body segments, which has profound significance.