Ricoy J R, Encinas A R, Cabello A, Madero S, Arenas J
Universidad Complutense, Hospital Universitario 12 de Octubre, Madrid, Spain.
J Physiol Biochem. 1998 Mar;54(1):41-7.
In 16 women and 66 men, aged 14 to 36 years, 10 sedentary and 72 athletes, the histochemical characteristics of the vastus muscle fibres have been studied. Muscle biopsies were processed histochemically using the myofibrillar ATPase method, and were classified according to gender, sport activity and type of exercise. The average diameter of muscle fibres was larger in men than in women and in trained individuals than in sedentary ones. The largest percentage of Type I fibres was found in long distance runners; the smallest in those performing karate and triple jump. The largest percentage of Type IIA fibres was found in swimmers and the smallest in footballers. The largest percentages of Type IIB and IIC fibres were found in footballers. The largest average diameters of Type I and Type II fibres were found in swimmers and in long distance athletes respectively. Type I and Type II fibres were dominant in the aerobic group and the anaerobic one, respectively; the percentage of Type IIC fibres was smaller in the anaerobic group.
对16名年龄在14至36岁的女性和66名男性进行了研究，其中包括10名久坐不动者和72名运动员，分析了股肌纤维的组织化学特征。采用肌原纤维ATP酶法对肌肉活检样本进行组织化学处理，并根据性别、体育活动和运动类型进行分类。男性和训练有素者的肌纤维平均直径大于女性和久坐不动者。长跑运动员中I型纤维的比例最高；空手道和三级跳远运动员中该比例最低。游泳运动员中IIA型纤维的比例最高，足球运动员中该比例最低。足球运动员中IIB型和IIC型纤维的比例最高。I型和II型纤维的平均直径分别在游泳运动员和长跑运动员中最大。I型纤维在有氧组占主导，II型纤维在无氧组占主导；无氧组中IIC型纤维的比例较小。
