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首页> 外文会议>Asia-Pacific Congress on Sports Technology >Relation between block spacing and forces applied to starting blocks by a sprinter
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Relation between block spacing and forces applied to starting blocks by a sprinter

机译：块间​​距和力量之间的关系应用于短跑运动员的起始块

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Sprinters adjust the arrangement of their starting blocks prior to a race, but there is no standard approach to doing this. At present, it is unclear as to how the block arrangement affects the forces applied to the blocks and consequent performance during sprint start. The purpose of this study is to investigate the effects of the starting block arrangement on the forces applied to them. For 18 different arrangements of block spacing, forces applied by a sprinter to the front and rear starting blocks, as well as to the ground on the first step, were measured using three force plates. The results indicate that when in the starting posture, the magnitude of the impulse applied to both blocks changes little between the 18 arrangements. Likewise, no substantial change occurs in the forces applied to the ground upon the first step. However, as the distance between the front and rear blocks was changed, the ratio of the impulses applied to the front and rear blocks did change: as the block spacing was increased, the impulse applied to the front block while in the starting posture decreased, while that applied to the rear block increased. In addition, changing the distance from the starting line to the front block influenced the relation between the block spacing distance and the forces applied to the two starting blocks.
机译：Sprinters在比赛之前调整他们的起始块的安排，但没有标准的方法可以这样做。目前，目前尚不清楚块布置如何影响块的力和随后在冲刺开始期间的性能。本研究的目的是探讨起始块安排对施加到它们的力的影响。对于18个不同的块间隔布置，使用三个力板测量由短跑炉和后后启动块施加到前后起始块的力，以及在第一步上的地面。结果表明，当在起始姿势时，应用于两个块的脉冲的大小在18个布置之间变化几乎没有变化。同样，在第一步时，在施加到地面的力中没有发生实质性变化。然而，随着前后块和后部块之间的距离改变，施加到前后块和后部块的脉冲的比率变化：随着块间距增加，施加到前块的脉冲，而在起始姿势上减少，虽然适用于后部块的增加。另外，将从起始线到前块的距离改变影响块间隔距离和施加到两个起始块之间的力之间的关系。

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