Simoneau J A, Lortie G, Boulay M R, Marcotte M, Thibault M C, Bouchard C
Eur J Appl Physiol Occup Physiol. 1985;54(3):250-3. doi: 10.1007/BF00426141.
The response of muscle fiber type proportions and fiber areas to 15 weeks of strenuous high-intensity intermittent training was investigated in twenty-four carefully ascertained sedentary (14 women and 10 men) and 10 control (4 women and 6 men) subjects. The supervised training program consisted mainly of series of supramaximal exercise lasting 15 s to 90 s on a cycle ergometer. Proportions of muscle fiber type and areas of the fibers were determined from a biopsy of the vastus lateralis before and after the training program. No significant change was observed for any of the histochemical characteristics in the control group. Training significantly increased the proportion of type I and decreased type IIb fibers, the proportion of type IIa remained unchanged. Areas of type I and IIb fibers increased significantly with training. These results suggest that high-intensity intermittent training in humans may alter the proportion of type I and the area of type I and IIb fibers and in consequence that fiber type composition in human vastus lateralis muscle is not determined solely by genetic factors.
在24名经过仔细筛选的久坐不动者（14名女性和10名男性）和10名对照组（4名女性和6名男性）受试者中，研究了肌肉纤维类型比例和纤维面积对15周高强度间歇训练的反应。监督训练计划主要包括在自行车测力计上进行一系列持续15秒至90秒的超最大运动。在训练计划前后，通过对股外侧肌活检来确定肌肉纤维类型的比例和纤维面积。对照组的任何组织化学特征均未观察到显著变化。训练显著增加了I型纤维的比例，降低了IIb型纤维的比例，IIa型纤维的比例保持不变。I型和IIb型纤维的面积随着训练显著增加。这些结果表明，人类的高强度间歇训练可能会改变I型纤维的比例以及I型和IIb型纤维的面积，因此人类股外侧肌的纤维类型组成并非仅由遗传因素决定。
