Factor and correlate analysis in development of throwing from throw like movement

本研究结果表明，幼儿利用助跑进行投掷动作的发展不仅与站立投掷有关，还与足球抛界外球、右上抛界外球和双手侧抛界外球有关，而且小学生每次投掷的投掷动作发展速度不同。这些结果表明，除了甩臂外，保持足部和躯干向后弯曲对投掷能力的发展起着重要的作用。系统地学习这些不同的投掷动作，有助于促进投掷运动的发展。

The results of this study showed that development of throwing movement using run-up forchildren relate to not only stand up throw but also throw-in of soccer, right above throw,and double hand side throw of medicine ball, and rate of development of throws inelementary children varied for each throw. These results suggest that it plays an importantrole for development of throwing ability to not only swing arm but also keep the foot andbend trunk backward. It might be useful for promoting development of throw to learn thesevariety of throwing movement systematically.