英文摘要
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In this paper, we tried to clarify the physical insight of some principles of Taijiquan. Since the contents of the principles of Taijiquan are various and complicated, our research only focused on parts of them, such as relaxing, unintentional force-exertion, passive limb-movement, position of center of gravity and calf-ground perpendicularity approximation. We took the standard operation of 白鶴亮翅 as an example and discussed about one specific movement of 白鶴亮翅called 合身亮翅. For the physical model, the three-dimensional human body is simplified to a two-dimensional structure which is comprised of four connected linkages - hand, upper-body, thigh and calf. Then we analyzed the effects of forces and moments exerted on each linkage.
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