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根据现代概念,大量的人体骨骼肌是由结构、代谢、功能等不同类型的肌纤维组成的形态机能多相系。从肌纤维中可分为慢的、红的、氧化的、耐疲劳的1型;快的、红的。氧化酵解的、耐疲劳的11—A型;快的、白的、酵解的、易疲劳的11—B型。肌肉中不同类型的肌纤维占有一定的比例,这就叫做“肌纤维的成分”。当前确认,肌纤维的成分是遗传决定的,除了所谓的假定肌肉之外,绝大多数的肌肉都具有这一个体特征。不过,在文献中也还存在相反的意见。因此,关于肌纤维成分由遗传决定的问题决不能认为是最后的结论。它还需要作进一步的研究。此外,肌肉内部由遗传决定的肌纤维成分作为人体结构的一个因素即
According to the modern concept, a large number of human skeletal muscle is a multi-phase system of morphological functions composed of different types of muscle fibers such as structure, metabolism and function. From the muscle fibers can be divided into slow, red, oxidized, fatigue-resistant type 1; fast, red. Oxidized, Fatigue-resistant Type 11-A; Fast, White, Fermented, Tread-Fatigue Type 11-B. Muscles, different types of muscle fibers account for a certain proportion, which is called “muscle fiber composition.” It is currently confirmed that the composition of myofibers is genetically determined, with the exception of the so-called hypothetical muscle, which is characteristic of most muscles. However, there is still the opposite opinion in the literature. Therefore, the issue of genetic determinations of muscle fiber content must not be considered as the final conclusion. It also needs further research. In addition, the intramuscular genetic components of the muscle fiber as a factor in the structure of the human body that