摘要
目的:探讨间歇低氧训练对大鼠心肌毛细血管的影响,为高原训练方案的制定提供理论依据。方法:采用透射电镜技术观察大鼠心肌细胞毛细血管超微结构在低氧适应过程中的变化。结果:运动训练可以改善大鼠心肌细胞毛细血管超微结构;急性低氧可造成心肌超微结构的损伤;经过4wk的慢性间歇低氧运动训练后再进行急性低氧应激,心肌的损伤减轻。结论:急性运动后进入急性低氧应激,导致心肌损伤加重,是由于运动缺氧损伤和低氧损伤双重作用的结果,而4wk的慢性间歇低氧训练可减轻低氧环境对心肌的损伤。
Objective： To study the effects of Myocardial uhrastructure of capillary vessel during intermittent hypoxia training .Methods： Myocardial ultrastructure of capillary vessel were observed by transmission electron microscope .Results： Acute hypoxic stress could induce myocardial ultrastructure damage. The damages to the rats exposed to hypoxia with 4- week training were alleviated . Conclusion： The severest damages in acute hypoxic exercise groups may be caused by exercise together with hypoxia. The results indicate that there was close relationship between the damages of myocardial uhrastructure and hypoxia, and the results suggest that training could protect myocardial cells from iniury induced by hypoxia.
出处
《广州体育学院学报》
北大核心
2005年第6期47-48,51,共3页
Journal of Guangzhou Sport University
基金
韩山师范学院重点科研课题(ZD200516)
关键词
间歇低氧训练
大鼠
心肌
毛细血管
intermittent hypoxia training
rat
myocardial ultrastructure
capillary vessel
