鞋垫对跑步运动中下肢肌电的影响研究

Research on the Influence of Insoles on the Electromyography of Lower Limbs in Running

目的:分析不同鞋垫对跑步中下肢肌电的影响,为消费者选择慢跑鞋垫提供理论参考。方法:采用noraxon无线表面肌电设备采集下肢肌电信号,依据配对T检验方法对数据进行分析。结果:积分肌电中无鞋垫类型与鞋垫B在下肢肌肉中均表现出统计学差异,穿鞋垫比无鞋垫类型下肢各肌肉最大值均小,且专业鞋垫与无鞋垫类型表现出统计学差异;鞋垫A中股二头肌的积分肌电和最大值减小最为明显,鞋垫B的股直肌贡献率、最大值下降明显。结论:在10km/h的速度下,专业跑步鞋垫减震作用更好,且对大腿肌群的疲劳有更好的延迟作用;鞋垫B较其他鞋垫优势更为明显,鞋垫A更有利于保护大腿后侧肌群,而鞋垫B更有利于保护大腿前侧肌群。

The paper aims to analyze the influence of different insoles on the muscle EMG of lower limbs during running,and to provide a theoretical reference for consumers to choose jogging insoles.Noraxon wireless surface EMG equipment was used to collect the EMG signals of lower limbs,and the data were analyzed according to the paired T test method.There were statistical differences of integrated EMG between the non-insole type and the B insoles in the lower limb muscles.The maximum value of mid-wear insole is smaller than that of the non-insole type.And there is a statistical difference between the professional insole and the non-insole type.With A insoles,the integrated EMG and maximum value of biceps femoris decreased most obviously,while the contribution rate and maximum value of rectus femoris in B insoles decreased significantly.It is concluded that at a speed of10 km/h,professional running insoles have a better shock absorption effect,and have a better delay effect on the fatigue of the thigh muscles.B insoles have more obvious advantages than other insoles.A insoles are more conducive to protecting the back muscles of the thigh,while B insoles are more conducive to protecting the front muscles of the thigh.