屈伸膝肌等速向心、离心收缩的比较研究

Comparison of isokinetic concentric data and isokinetic eccentric data of knee flexors and extensors

目的 研究等速向心收缩和离心收缩的差异，为深入研究提供客观依据。方法 采用 BIODEXⅡ AP型多关节等速测试及康复系统测试 40例正常男性屈伸肌的峰力矩、相对峰力矩、总功、相对总功和平均功率，用 t检验分析两组结果的差异。结果 伸膝肌向心收缩结果均明显大于离心收缩，屈膝肌这种差异以慢速时显著。结论 在一般测试和训练的情况下，应首选向心收缩。

Objective To compare the difference of isokinetic concentric data and eccentric data of knee flexors and extensors for the purpose of future use .Method BEODEX Multi joint System was used to analyze the data of 40 normal males ,the data were Peak Torque ,Peak Torque to Body Weight ,Total Work ,Total Work to Body Weight and Average Power .Result Obvious difference was found between two groups for knee extensors ,but the difference can only be found in slow contraction for knee flexors .Conclusion Isokinetic concentric contraction is the best choice for general patients .