Faculty of Sports, University of Presov, 080 01 Presov, Slovakia.
Int J Environ Res Public Health. 2021 Nov 12;18(22):11909. doi: 10.3390/ijerph182211909.
The study aims to determine the contribution of kinematic parameters to time to 5 m without underwater undulating and kicking. Eighteen male competitive swimmers started from three weighted positions and set the kick plate to positions 1-5. We used SwimPro cameras and the Dartfish© software. In the on-block phase, we found significant correlations ( < 0.01) between the front ankle angle and block time. The correlations between start phases were statistically significant ( < 0.01) between block time and rear ankle angle, respectively, to time to 2 m; rear knee angle and glide time; block time and time to 5 m; time to 2 m and time to 5 m; and flight distance and glide distance. The multiple regression analysis showed that the on-block phase and flight phase parameters, respectively, contributed 64% and 65% to the time to 5 m. The key block phase parameters included block time and rear knee angle. The key flight phase parameters determining time to 5 m included take-off angle and time to 2 m. The key parameters determining the performance to 5 m during the above-water phase include rear knee angle, block time, takeoff angle, and time to 2 m.
本研究旨在确定无水下波动和踢腿情况下 5 米用时的运动学参数贡献。18 名男性竞技游泳运动员从三个负重位置出发，并将踢板设置在位置 1-5。我们使用 SwimPro 相机和 Dartfish©软件。在蹬壁阶段，我们发现前踝关节角度与蹬壁时间之间存在显著相关性（<0.01）。出发阶段之间的相关性在统计学上是显著的（<0.01），分别为蹬壁时间与 2 米用时、后膝关节角度与滑行时间、蹬壁时间与 5 米用时、2 米用时与 5 米用时、以及腾空距离与滑行距离。多元回归分析表明，蹬壁阶段和飞行阶段的参数分别对 5 米用时贡献了 64%和 65%。关键蹬壁阶段参数包括蹬壁时间和后膝关节角度。决定 5 米用时的关键飞行阶段参数包括起跳角度和 2 米用时。决定水上阶段 5 米用时的关键参数包括后膝关节角度、蹬壁时间、起跳角度和 2 米用时。
