Calculation of the centre of pressure on the athletic starting block
Calculation of the centre of pressure on the athletic starting block
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DOI：
10.1080/14763141.2018.1561933
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发表时间：
2021-05-19
影响因子：
2.2
通讯作者：
Nagahara, Ryu
中科院分区：
文献类型：
--
作者：
Ohshima, Yuji;Bezodis, Neil E.;Nagahara, Ryu
我们的目的是评估一种新的方法来计算的压力中心（COP）在一个力平台以上的起始块的准确性，并检查这种方法如何影响下肢关节扭矩在块间隙阶段相比，以前使用的方法，项目的COP从跖趾关节（MP）。为了评估新方法的准确性，一名实验人员在起始块上的18个已知位置施加力（在六个块位置和方向条件下），在此期间，使用测力平台记录下面的地面反作用力。两个短跑运动员，然后进行了三块开始，和下肢关节扭矩计算在块间隙使用COP从新的方法和MP关节位置的投影。使用新方法计算的COP的平均偏差为
We aimed to evaluate the accuracy of a new method to calculate the centre of pressure (COP) on a starting block above a force platform, and to examine how this method affected lower extremity joint torques during the block clearance phase compared against a previously used method which projects the COP from the metatarsophalangeal (MP) joint. To evaluate the accuracy of the new method, one experimenter applied force at 18 known locations on a starting block (under six block position and orientation conditions), during which ground reaction force was recorded underneath using a force platform. Two sprinters then performed three block starts each, and lower extremity joint torques were calculated during block clearance using the COP obtained from the new method and from the projection of the MP joint location. The calculated COP using the new method had a mean bias of