摘要
对４只家兔背阔肌以２ＨＺ的频率电刺激４Ｗ，在电镜下观察超微结构的变化，并作计量分析。慢性电刺激可使线粒体含量明显增加，在Ⅰ型纤维内由４．５３％增至６．２４％；在Ⅱ型纤维内由２．９５％增至３．７８％。肌糖原颗粒的数目也显著增加。并就骨骼肌耐疲劳转化的机理及电刺激条件进行了探讨，为骨骼肌动力型心肌成形术中耐疲劳转化提供实验形态学依据。
Objective:To provide experimental morphologic bases of fatigue resistance in preparation of myocardial plastic surgery using skeleton muscle.Methods:Four adult rabbits subjected to continuous electrical stimulation in latissimus dorsi muscles at frequency of 2 Hz for 4 weeks.Results:The latissimus dorsi muscle subjected to chronic stimulation showed a remarkable increase in the mitochondria and the glycogen granules.Conclusions:Such changes suggested that resistance to fatigue was probably enhanced.
出处
《中国临床解剖学杂志》
CSCD
北大核心
1997年第1期49-51,共3页
Chinese Journal of Clinical Anatomy
关键词
背阔肌
电刺激
超微结构
耐疲劳性
latissimus dorsi muscle
stimulation
ultrastructure
