| Summary: | 碩士 === 臺北巿立體育學院 === 運動技術研究所 === 96 === The purpose of research was regarded the analysis of softball pitchers’ lower limb power of taking off, body core velocity, and the influence of step velocity to release velocity. With the experiment process, six players throw 5 straight elbow throwing respectively. The pitchers’ throwing information were recorded by using Kistler force plate and using Bioware software to do the analysis.
The result of study was followed conclusion：
1. Softball pitchers’ throwing speed was between 91 to 100 km/h, the average was 95.96 k velocity m/h. The power of taking off was between0.323 to 0.428BW(body weight), the average was 0.369BW.
2. Releasing velocity and power was significant correlation (r=0.979 ＊p＜.05). and power of taking off was significant with releasing velocity. It also mean that power of taking off was big and ball velocity would be fast.
3. The centre of gravity was moving 12 cm up and down, all were moving 24 cm. It showed that the forward velocity of centre of gravity was influencing releasing velocity.
Softball pitcher enhanced power of lower limb to increase ball velocity and power. It would achieve the best effect
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