幼児の不安定面における両足連続跳躍動作に及ぼす年齢差の影響

<p>This study aims to identify factors that influence body control, which is necessary for locomotion, and conduct a comparative analysis between 4- and 5-year-olds. The participants were asked to jump onto an unstable surface to test their body control. Further, we identified and studied the factors that influence the time taken to complete the task from the perspective of physical strength and the characteristics of the movement.</p><p>The results showed that the standing broad jump and the side jump, which were used to assess physical strength, had a meaningful correlation with the time taken to complete the HUS task across both age groups. However, factors such as the position of the head, the degree to which the leg is bent, and the presence of the taking in advance of eyes in the landing situation jumping consecutively were found to have a meaningful correlation with the time taken to complete the HUS task only among the 4-year-olds.</p><p>These results show that there is a remarkable difference between 5- and 4-year-olds in terms of physical control as indicated by factors that influence movement when performing the HUS task. They also show that factors such as the position of the head or the degree to which the leg is bent had an influence on the time taken to accomplish the HUS task among 4-year-olds.</p><p>Therefore, we conclude that when it comes to the development of athletic performance, the locomotion skills are developed first, followed by performance.</p>