骨骼肌持续动态慢张力收缩的相关研究

A Relative Study on Skeletal Muscle Sustained Active Delay Stretch Contract

在研究打太极拳时腿部肌肉收缩的基础上，首次提出骨骼肌持续动态慢张力收缩这种特有的收缩形式，部分采用文献资料分析法．得出当用５０Ｈｚ和２０００Ｈｚ刺激肌肉时，可引起毛细管数目、密度增加，以及内毛细管距离缩短；肌纤维形态的改变在５０Ｈｚ组，细胞核的数量和胞核的大小两组都增加，导致单位组织的体积增加．而太极拳动作既非象５０Ｈｚ刺激又非象２０００Ｈｚ刺激，它是一种骨骼肌在各附着关节上做大幅度缓慢而持久并同时变换张力和收缩角的一种收缩，关于这种收缩还有待于更深入的研究。

n the basis of studying the muscle contracing of legs during exercising Taijiquan, the author points out a new form of muscle contracing-the active delay stretch contraction. Through analysis of a lot of references, the author draws some conclusions that the capillary number and density will increase and the intercapillary distacne will shorten with stimulating at 50Hz and 2000Hz; the fiber size significantly increases only in group with stimulating at 50Hz frequency, and the number and size of Nuclear will...