Segmental dynamics of soccer instep kicking with the preferred and non-preferred leg
Segmental dynamics of soccer instep kicking with the preferred and non-preferred leg
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DOI：
10.1080/02640410500298024
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发表时间：
2006-05-01
影响因子：
3.4
通讯作者：
Sano, S
中科院分区：
文献类型：
--
作者：
Nunome, H;Ikegami, Y;Sano, S
详细的时间序列之间的首选和非首选的踢球腿在足球脚背踢关节力矩和节段的相互作用进行了比较。双腿的踢腿动作被捕获的五个高度熟练的球员使用三维电影技术在200赫兹。使用由大腿和小腿（包括小腿和脚）组成的双连杆动力链模型计算合成关节力矩（肌肉力矩）和由于节段相互作用引起的力矩（相互作用力矩）。肌肉的机械功能和相互作用的时刻踢清楚地说明。球的速度明显更大（32.1比27.1米。s（-1））、柄部角速度（39.4与31.8 rad . s（-1））和最终足速度（22.7 vs. 19.6 m . s（-1））。首选腿的膝关节肌肉力矩显著更大（129.9 N）。m）比非首选腿（93.5 N . m），而两条腿之间的相互作用力矩没有实质性差异（79.3与55.7 N。m）。这些结果表明，高技能的足球运动员实现了良好的协调节段间运动的首选和非首选的腿。对于首选腿观察到的更快的腿摆动最有可能是较大的肌肉力矩的结果。
Detailed time-series of the resultant joint moments and segmental interactions during soccer instep kicking were compared between the preferred and non-preferred kicking leg. The kicking motions of both legs were captured for five highly skilled players using a three-dimensional cinematographic technique at 200 Hz. The resultant joint moment ( muscle moment) and moment due to segmental interactions ( interaction moment) were computed using a two-link kinetic chain model composed of the thigh and lower leg ( including shank and foot). The mechanical functioning of the muscle and interaction moments during kicking were clearly illustrated. Significantly greater ball velocity (32.1 vs. 27.1 m . s(-1)), shank angular velocity (39.4 vs. 31.8 rad . s(-1)) and final foot velocity (22.7 vs. 19.6 m . s(-1)) were observed for the preferred leg. The preferred leg showed a significantly greater knee muscle moment (129.9 N . m) than the non-preferred leg (93.5 N . m), while no substantial differences were found for the interaction moment between the two legs (79.3 vs. 55.7 N . m). These results indicate that the highly skilled soccer players achieved a well-coordinated inter-segmental motion for both the preferred and non-preferred leg. The faster leg swing observed for the preferred leg was most likely the result of the larger muscle moment.