Department of Sport and Exercise Science, University of Portsmouth, Portsmouth, UK.
J Sports Sci. 2011 Feb;29(3):247-51. doi: 10.1080/02640414.2010.523085.
Six competitive soccer players were recruited to examine EMG activation in three quadriceps muscles during a kicking accuracy task. Participants performed three maximum instep place kicks of a stationary ball, 11 m perpendicular from the centre of the goal line towards targets (0.75 m(2)) in the four corners of the goal. Surface EMG of the vastus lateralis, vastus medialis, and rectus femoris of the kicking leg was normalized and averaged across all participants to compare between muscles, targets, and the phase of the kick. Although no significant difference were observed between muscles or kick phases, kicks to the right targets produced significantly greater muscle activity than those towards the left targets (P < 0.01). In addition, kicks towards the top right target demonstrated significantly greater muscle activity than towards the top and bottom left (P < 0.01). Under accurate soccer shooting conditions, kicks aimed to the top right corner of the goal demonstrated a higher level of quadriceps muscle activation than those towards the other corners.
六位竞技足球运动员被招募来研究在踢准任务中，三种股四头肌的肌电图（EMG）激活情况。参与者在距离球门线中心 11 米的地方，对一个固定的球进行三次最大脚背踢，球朝着球门四个角的目标（0.75 平方米）踢去。对踢腿的股外侧肌、股中间肌和股直肌的表面肌电图进行归一化和平均化，以比较肌肉、目标和踢腿阶段之间的差异。尽管在肌肉或踢腿阶段没有观察到显著差异，但右脚踢向右侧目标的肌肉活动明显大于左侧目标（P < 0.01）。此外，右脚踢向右上角目标的肌肉活动明显大于左上角和左下角（P < 0.01）。在准确的足球射门条件下，踢向球门右上角的球需要更高水平的股四头肌激活，比踢向其他角落的球需要更高水平的激活。
