Floría Pablo, Sánchez-Sixto Alberto, Ferber Reed, Harrison Andrew J
a Physical Performance Sports Research , Universidad Pablo de Olavide , Seville , Spain.
b Department of Sport , CEU San Pablo University , Seville , Spain.
J Sports Sci. 2018 Feb;36(3):272-278. doi: 10.1080/02640414.2017.1300314. Epub 2017 Mar 17.
The purpose of this study was to examine the differences in coordination variability in running gait between trained runners and non-runners using continuous relative phase (CRP) analysis. Lower extremity kinematic data were collected for 22 participants during the stance phase. The participants were assigned to either a runner or non-runner group based on running volume training. Segment coordination and coordination variability were calculated for selected hip-knee and knee-ankle couplings. Independent t-tests and magnitude-based inferences were used to compare the 2 groups. There were limited differences in the CRP and its variability among runners and non-runner groups. The runners group achieved moderately lower coordination compared with non-runners group in the phase angle for hip abduction/adduction and knee flexion/extension. The runners tended to show moderately lower coordination variability in the phase angle for knee flexion/extension and subtalar inversion/eversion in comparison to non-runners group. These results suggested that levels of experience as estimated from weekly training volume had little influence on coordination and its variability.
本研究的目的是使用连续相对相位（CRP）分析来检验训练有素的跑步者和非跑步者在跑步步态中协调性变异性的差异。在站立阶段收集了22名参与者的下肢运动学数据。根据跑步量训练将参与者分为跑步者组或非跑步者组。计算选定的髋-膝和膝-踝关节耦合的节段协调性和协调性变异性。使用独立t检验和基于量级的推断来比较两组。跑步者组和非跑步者组之间的CRP及其变异性差异有限。与非跑步者组相比，跑步者组在髋关节外展/内收和膝关节屈伸的相位角方面协调性略低。与非跑步者组相比，跑步者在膝关节屈伸和距下关节内翻/外翻的相位角方面协调性变异性往往略低。这些结果表明，根据每周训练量估计的经验水平对协调性及其变异性影响很小。
