【摘要】：目的:以重心法獲得的縱跳高度作為參照標(biāo)準(zhǔn),比較叉腰縱跳和擺臂縱跳情況下不同高度計(jì)算方法之間的差異。方法:采集20名男性受試者叉腰縱跳和擺臂縱跳時(shí)的運(yùn)動(dòng)學(xué)和地面反力數(shù)據(jù),分別采用重心法、腰點(diǎn)法、騰空時(shí)間法、離地速度法、地面反力積分法計(jì)算縱跳高度。結(jié)果:5種方法所得縱跳高度之間均具有顯著差異(P0.001);與重心法相比,其他4種方法所得結(jié)果誤差從小到大依次為腰點(diǎn)法、地面反力積分法、騰空時(shí)間法和離地速度法;4種方法計(jì)算高度與重心法計(jì)算的結(jié)果具有較好的一致性,且高度相關(guān)(0.914≤r≤0.974)。結(jié)論:腰點(diǎn)法、騰空時(shí)間法、離地速度法、地面反力積分法在計(jì)算縱跳高度時(shí)均存在不同程度的系統(tǒng)誤差,但在一定程度上幾種方法仍可替代重心法,且計(jì)算的結(jié)果可用于實(shí)際縱跳高度的預(yù)測(cè)。推薦使用腰點(diǎn)法和地面反力積分法計(jì)算縱跳高度。
[Abstract]:Aim: to compare the differences between the different height calculation methods in the case of vertical jump of fork waist and pendulum arm by using the height of longitudinal jump obtained by gravity center method as the reference standard. Methods: the kinematics and ground reaction data of 20 male subjects were collected, and the height of longitudinal jump was calculated by gravity center method, waist point method, time method, velocity off ground method and ground reaction integral method. Results: there were significant differences among the five methods (P0.001). Compared with the barycenter method, the error of the other four methods is the waist point method, the ground reaction integration method, the time method and the off-ground velocity method. The calculated height of the four methods is in good agreement with that of the barycenter method, and it is highly correlated (0.914 鈮，

本文編號(hào)：2299335