Coordination Variability Changes with Fatigue in Sprinters
Coordination Variability Changes with Fatigue in Sprinters
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DOI：
10.1260/1747-9541.6.3.357
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发表时间：
2011-09-01
影响因子：
1.9
通讯作者：
Bussey, Melanie
中科院分区：
文献类型：
--
作者：
Trezise, Joanne;Bartlett, Roger;Bussey, Melanie
协调变异性是运动成绩的内在因素，是个人运动模式波动的特征。疲劳重建了神经肌肉系统的节间组织，改变了熟练表演所必需的运动模式。目前的研究调查了疲劳如何改变短跑多关节运动中的协调变异性。使用双案例研究设计，两名短跑运动员进行了6次80米短跑，休息时间减少，这是他们预定训练期所需的。短跑运动员从冲刺的最高速度阶段一直到终点都被拍摄下来。每个短跑运动员在整个试跑和步幅的不同阶段所表现出的独特影响表明，疲劳对运动变异性的影响不能在短跑运动员中一概而论。除了疲劳对力量和体能的影响外，其他因素(如精神集中或决心)可能会影响运动的可变性。
Coordination variability is an inherent factor in athletic performance and characterises the fluctuations that occur in an individual's movement patterns. Fatigue restructures the inter-segmental organization of the neuromuscular system and alters the movement patterns necessary for a skilled performance. The current study investigated how fatigue altered coordination variability during the multi-joint movement of sprinting. Using a dual case study design, two sprinters performed six 80 m sprints with decreasing rest periods, as required for their scheduled training session. The sprinters were filmed from the maximal speed stage of the sprint until the finish line. The unique effects shown by each sprinter at different phases throughout the trials and the strides suggest that the effect of fatigue on movement variability cannot be generalised across sprinters. Along with the effects of fatigue on strength and fitness, other factors (such as mental focus or determination) might influence movement variability.