不少研究已经证明,成人通过耐力训练能够增加骨骼肌氧化酶的活性,而速度训练则能够(亦有研究发现没有)增加糖醇解酶的活性。埃里森等注意到,11～13岁男孩训练前后的琥珀酸脱氢酶活性变化同于成年人。他们还报道,和没有训练、有训练以及从事多年运动的成年男性相比,这些孩童肌肉中磷酸果糖激酶的活性是比较低的。迄今为止,尚未见有关专项训练对男青少年骨骼肌代谢影响研究的报道。本研究目的旨在了解速度及耐力训练 Numerous studies have shown that adults can increase skeletal muscle oxidase activity through endurance training while speed training (and others have found no) increases the activity of the sugar alcohololytic enzyme. Ellison et al. Noted that changes in succinate dehydrogenase activity in 11-13-year-old boys were similar to those in adults. They also reported that the phosphofructokinase activity in these children’s muscles was relatively low compared to adults who did not train, train, and work years of exercise. So far, no reports on the effects of special training on the metabolism of skeletal muscle in young adolescents have been reported. The purpose of this study is to understand speed and endurance training