跑的专门性练习与短跑途中跑下肢肌电贡献特征的对比研究  

Comparative Research on the Myoelectrical Contribution of Lower Limb Muscles in Specialized Training of Running and Intermediate Running in Sprint

作　　者：马秀杰[1] 刘昆[1] 周纯 

机构地区：[1]邯郸学院体育学院,邯郸河北056005 [2]天津市北辰区辰昌路小学,天津038000

出　　处：《成都体育学院学报》2013年第5期74-78,共5页Journal of Chengdu Sport University

摘　　要：采用美国产NORAXON TeleMyo 2400R遥测肌电仪和"爱捷"运动图像解析系统软件,对比分析受试者在做短跑专门性练习如车轮跑、后蹬跑、高抬腿跑与在做短跑途中跑时右腿股直肌、股外侧肌、股内侧肌、半键肌、股二头肌、胫骨前肌、腓肠肌和臀大肌的肌电特征和肌肉工作机制。结果表明,肌电贡献率在车轮跑时与途中跑基本一致,股外侧肌与股内侧肌在后蹬跑和短跑途中跑的支撑腿后蹬动作阶段中存在贡献率显著性差异,股外侧肌与半腱肌在高抬腿与短跑途中跑的摆动腿下压着地动作阶段的贡献率存在显著性差异。因此,在训练时应强化车轮跑,改进高抬腿跑,慎用后蹬跑。NORAXON TeleMyo 2400R and motion graphics analyzing system software are adopted in the research to comparatively analyze the subjects＇myoelectric characteristics and the working mechanism of muscles when doing sprint practice, with the result showing that the myoelectrical contribution of wheel running and intermediate running is similar. The vastus lateralis muscles and vastus medialis muscles indicate significant differences in the phase of back - tread movements of the supporting leg in back - tread running and sprint intermediate running. There is significant difference of the contribution rate of the vastus lateralis muscles and the semitendinosus in the phase of the swinging leg＇s touchdown in high - leg running and sprint intermediate running. As a result, we should strengthen wheel running, improve high - leg running and depend on back -step running with caution in training.

关 键 词：短跑途中跑 跑的专门性练习 肌电 

分 类 号：G822.1[文化科学—体育训练]