RELATIONSHIPS BETWEEN GROUND REACTION IMPULSE AND SPRINT ACCELERATION PERFORMANCE IN TEAM SPORT ATHLETES
RELATIONSHIPS BETWEEN GROUND REACTION IMPULSE AND SPRINT ACCELERATION PERFORMANCE IN TEAM SPORT ATHLETES
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DOI：
10.1519/jsc.0b013e318257805a
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发表时间：
2013-03-01
影响因子：
3.2
通讯作者：
Newton, Robert U.
中科院分区：
文献类型：
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作者：
Kawamori, Naoki;Nosaka, Kazunori;Newton, Robert U.
Kawamori， N, Nosaka， K和Newton， RU。团体运动运动员地面反作用力冲量与冲刺加速度的关系。[J] .体能与运动杂志，27(3):568-573 - 2013-在短距离短跑中，大的水平加速度是许多团体运动运动员的关键性能参数。人们经常说，在每次触地时产生大的水平冲量对于短跑成绩的提高是必不可少的，但是水平和垂直冲量的最佳模式还没有得到很好的理解，特别是当短跑是从站立起跑时。本研究旨在探讨团体运动运动员站立起跑时的地面反应冲动与冲刺加速表现之间的关系。30名具有团队运动背景的体力活跃的年轻人从站立起跑10米，而在第一次接触地面和距离起跑8米时记录冲刺时间和地面反作用力。短跑时间和地面反应冲动（按体重归一化）之间的关联通过Pearson相关系数(r)分析确定。10 m冲刺时间与起跑8 m处的净水平冲量（r = -0.52）和推进冲量（r = -0.66）呈极显著相关（p < 0.01）。在起跑后第一次接触地面时记录的脉冲和冲刺时间之间没有显著的相关性。这些结果表明，在更水平的方向上施加地面反作用力脉冲对于从站立开始的冲刺加速度很重要。这与使用雪橇牵引或使用弹性阻力装置增加净水平冲量的训练假设是一致的，这需要通过未来的纵向训练研究来验证。
Kawamori, N, Nosaka, K, and Newton, RU. Relationships between ground reaction impulse and sprint acceleration performance in team sport athletes. J Strength Cond Res 27(3): 568-573, 2013-Large horizontal acceleration in short sprints is a critical performance parameter for many team sport athletes. It is often stated that producing large horizontal impulse at each ground contact is essential for high short sprint performance, but the optimal pattern of horizontal and vertical impulses is not well understood, especially when the sprints are initiated from a standing start. This study was an investigation of the relationships between ground reaction impulses and sprint acceleration performance from a standing start in team sport athletes. Thirty physically active young men with team sport background performed 10-m sprint from a standing start, whereas sprint time and ground reaction forces were recorded during the first ground contact and at 8 m from the start. Associations between sprint time and ground reaction impulses (normalized to body mass) were determined by a Pearson's correlation coefficient (r) analysis. The 10-m sprint time was significantly (p < 0.01) correlated with net horizontal impulse (r = -0.52) and propulsive impulse (r = -0.66) measured at 8 m from the start. No significant correlations were found between sprint time and impulses recorded during the first ground contact after the start. These results suggest that applying ground reaction impulse in a more horizontal direction is important for sprint acceleration from a standing start. This is consistent with the hypothesis of training to increase net horizontal impulse production using sled towing or using elastic resistance devices, which needs to be validated by future longitudinal training studies.