The Development of evaluation and learning methods for fundamental movements(throwing and catching) according to the learning level on elementary school children

研究者以动作观察法探讨网球与躲避球上手抛接动作之评价与学习方法之效度与有效性。当我们关注投掷运动时，可以根据每个运动发生的顺序统计解释3个主要运动，例如重心转移的体轴旋转运动、扭转运动和鞭打运动。这些结果也解释了每个动作的难度。对无经验的儿童进行准备阶段和重心转移的指导是有效的，对中等水平的儿童进行转体动作是必要的。

Researcher investigated validity and effectiveness of the evaluating and learning methods for overhand throw and catching of tennis ball and dodge ball by motion observation procedure. When we focused throwing motion, 3major motions such as body axis rotational motion with shifting the center of gravity, twist motion and whipping motion could be explained statistically based on the order of occurrence of each motion. These results also explained the difficulty of each motion. It was effective that guidance of the preparation phase and shifting center of gravity was suitable for inexperienced children, then, the twist motion shall be conducted for moderate level children.