表面肌电图在运动员大腿肌肉拉伤康复评定中的应用

Application of Surface Electromyography in Assessment for Thigh Muscle Strain in Athletes

目的探讨准确、全面、便于操作的足球运动员下肢运动能力评价方法。方法 2012年6月至2015年6月,采用16通道NORAXON无线肌电遥测系统,测量健康青少年足球运动员7例(健康组)和大腿肌肉拉伤后临床症状消失重返赛场前的同队运动员7例(拉伤组),单腿起跳落地时下肢相关肌肉的协同收缩模式、肌肉激活时间和激活程度。结果拉伤组下肢肌肉发力顺序与健康组有显著性差异(t>2.223, P<0.05);拉伤组股二头肌长头贡献率大于健康组(t=2.778, P<0.05)。结论运动员大腿肌肉拉伤后,相关肌肉发力顺序改变;表面肌电图能发现运动员的肌肉弱点,为功能康复提供参考。

Objective To explore an accurate,comprehensive and easy-to-operate assessment of lower limbs exercise capacity for the football players.Methods From June,2012 to June,2015,seven healthy young football players(healthy group)and their seven teammates after thighs muscle strain returning to play(injured group)were measured the synergism constriction pattern,activation time and the degree of muscle activation of related muscle during single leg jump,with NORAXON,a 16-channel wireless electromyography telemetry system.Results The sequence of force was significant difference between the two groups(t>2.223,P<0.05).The contribution of long head of biceps was more in the injured group(t=2.778,P<0.05).Conclusion The sequence of muscle force in movement varies after lower extremities injury in athletes.Surface electromyography can test the weakness of local muscle of athletes,to help the evaluation and rehabilitation for them.