大学生短跑运动员膝关节肌等速向心收缩的肌力研究  

A Study of Characteristics of College Student Sprinters' Knee Joint Muscle Power in Concentric Contraction

作　　者：俞小亚[1] 

机构地区：[1]丽水学院教育学院,浙江丽水323000

出　　处：《丽水学院学报》2014年第2期82-85,共4页Journal of Lishui University

摘　　要：采用德国Isomed2000等速肌力测试系统、ME6000无线肌电遥测系统,同步测试优秀大学生短跑运动员膝关节屈伸肌群在不同速度向心收缩过程中肌肉组织的力学及肌电活动特性。结果显示:大学生短跑运动员膝关节屈伸肌群在60 b/s、120 b/s、240 b/s向心用力时峰力矩随着速度增加逐渐下降;iEMG随着角速度的增加而下降;运动员左右腿屈、伸峰力矩比值接近运动员的正常范围,发展较均衡。ISOMED2000 Isokinetic Force-measuring System and ME6000sEMG Testing System were applied to synchronously measuring the features of mechanics and myoelectric activity of the muscular tissues of male sprinters＇ knee flexor and extensor groups in the process of concentric contraction at different speed. The results indicates： when sprinters＇ knee flexor and extensor groups made concentric exertion at the speed of 60 b/s, 120 b/s, 240 b/s, the peak torque decreased but the power increased with the increment of speed; iEMG decreased with the increment of speed; sprinters＇ leg flexion and extension peak torque ratio were close to the normal range of athletes and developed in a rather balanced manner.

关 键 词：短跑运动员 膝关节 屈伸肌 肌力 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]