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躯干屈伸肌等长与等速向心收缩肌力测试的相关研究

Chinese Journal of Physical Medicine and Rehabilitation(2005)

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Abstract
目的探讨躯干屈伸肌等长与等速向心收缩肌力测试结果的相关性.方法对50例健康受试者分别进行躯干肌屈曲、伸展等长收缩与等速向心收缩肌力测试,将二种方法测试的屈曲、伸展峰力矩(peaktorque,PT)和屈曲、伸展峰力矩之比(F/E)进行相关与回归分析.结果躯干屈伸肌等长收缩、等速向心收缩肌力测试中PT值呈显著正相关(r伸=0.827,P=0.000<0.05,r屈=0.873,P=0.000<0.05);等长收缩和等速向心收缩肌力测试获得的屈曲、伸展PT值建立的回归方程式分别为y^=8.158+1.097x和y^=-12.375+0.781x,经检验成立并有统计学意义(P<0.05);而屈曲、伸展峰力矩之比(F/E)无相关性(r=0.18,P=0.208>0.05),二者差异有统计学意义(t=-7.588,P=0.000<0.05).结论躯干屈伸肌等长收缩肌力测试能准确地反映躯干肌肌力的变化,并且用中立位等长收缩肌力测试的F/E比值反映躯干的稳定性更合理.
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Key words
isokinetic concentric muscle strength,muscle strength,trunk flexors
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