Light Concentric Exercise During Recovery from Exercise-Induced Muscle Damage
Light Concentric Exercise During Recovery from Exercise-Induced Muscle Damage
复制标题
运动引起的肌肉损伤恢复期间的轻度同心运动
DOI：
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发表时间：
1995
影响因子：
2.5
通讯作者：
A. Donnelly
中科院分区：
文献类型：
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作者：
J. Saxton;A. Donnelly
八名男性志愿者先用一只手臂的前臂屈肌，然后用另一只手臂进行了两次古怪的锻炼。这两场比赛由70个最大的随意肌肉动作组成，间隔三周。在本研究的实验条件下，在离心训练后的4天内进行5组10次次最大同心肌动作。在本研究的对照条件下，不进行同心功。重复测量方差分析显示，两次偏心发作后，大鼠血清肌酸激酶活性升高（p < 0.01），舒张肘关节角（0.87、1.57和2.79 rad）和最大自主收缩力降低（p < 0.01）。然而，在实验条件下，偏心运动降低了血清肌酸激酶反应（p < 0.05），加速了关节最锐角（0.87 rad）最大自主力生产的恢复（p < 0.01）。虽然在两次偏心运动后肌肉酸痛均有所增加（p < 0.05； Wilcoxon检验），但在两次偏心运动后2天，进一步的同心圆运动可暂时缓解肌肉酸痛（p < 0.05； Wilcoxon检验）。然而，光同心功对监测的其他参数没有影响。实际上，这些结果表明，光同心工作对运动引起的相关肌肉损伤的治疗作用是最小的。
Eight male volunteers performed two eccentric exercise bouts using the forearm flexors of first one arm, then the other. The two bouts, consisting of 70 maximum voluntary muscle actions, were separated by a period of three weeks. In the experimental condition of the study, five sets of 10 sub-maximal concentric muscle actions were performed on the four days after the eccentric bout. In the control condition of the study, no concentric work was performed. Repeated measures analysis of variance indicated an increase in serum creatine kinase activity (p < 0.01) and decreases in relaxed elbow angle (p < 0.05) and maximum voluntary contraction force (p < 0.01) at three elbow angles (0.87, 1.57 and 2.79 rad) after both eccentric bouts. However, the serum creatine kinase response to eccentric exercise was reduced in the experimental condition (p < 0.05) and recovery of maximum voluntary force production at the most acute joint angle (0.87 rad) was accelerated (p < 0.01). Although muscle soreness increased after both eccentric bouts (p < 0.05; Wilcoxon test), further concentric exercise evoked temporary relief of muscle soreness two days after the bout (p < 0.05; Wilcoxon test). However, light concentric work had no effect on the other parameters monitored. In practical terms, these results suggest that the therapeutic effects of light concentric work on correlates of exercise-induced muscle damage are minimal.
影响因子：
4.1
作者：
Robert B. Armstrong
通讯作者：
Robert B. Armstrong