推 ZzzBa:很久不見的r大 12/25 11:21
※ 引述《PublicSea (公海)》之銘言：
: http://www.badongo.com/vid/571357
: 影像可能不是那麼清楚
: 不過大家就將就點吧
: 小弟在此先行謝過了
your release point is too early and
your arm does not stretch forward enough. (cause and effect)
try to let your hand to slap on your back after tossing the
ball. if your hand can naturely slap or reach to your back,
your pitching will improve a lot.
your body movement is too slow.
try to step on (your frount foot)the ground very hard during pitching,
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