| Summary: | 碩士 === 國立體育學院 === 教練研究所 === 90 === The ability of keeping balance is not only important for general public, but also essential for the athletes. In the present shoes market, people emphasize that the functions of shoes include maintaining the stability of feet, cushioning and prevention; however, none of research has investigated the effect of different thicknesses of heels and ankle angles on balance ability. This research attempts to determine the influence of balance ability in different ankle angles, and expects to find out the best ankle angle in balance ability.
The subjects in this study were thirty male (24.3±3.7 years). In the experiment, we interferenced people’s balance ability by a medicine ball, and measured the balance ability in different ankle angles with Kistler force plate system. The results of this study were summarized as followed: Static balance: he radius of COVGRF was minimum, when the ankle angle was 5 degrees of plantarflextion；Dynamic balance: (1) when the ankle angle was in 5 degrees of plantarflextion, the time of returning to balance was shortest. (2) As far as absolute degree is considered, the bigger the ankle angle is, the longer the time for people to recover balance required.
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