摘要
目的:探讨“高住低练”(运动员睡在相当于2500m的高度,训练则在平原)过程中,低氧及运动时划船运动员血清酶的变化规律。方法:20名划船运动员随机分为高住低练组和低住低练组,每组10名。分别测定运动员在安静状态下及耐力负荷后血清肌酸激酶(CK)、乳酸脱氢酶(LDH)和谷丙转氨酶(ALT)的活性。结果:发现在高住低练的初期,高住低练组运动员血清CK、LDH活性明显高于对照组,而高住低练4周后,血清酶活性则明显低于对照组,并可连续到高住低练后2周;通过4周高住低练后,高住低练组运动员在耐力测试后即刻及恢复期血清CK、LDH活性均明显低于对照组。结论:提示运动员在2500m高度进行4周高住低练,机体对缺氧负荷和运动负荷的适应后,能降低由于运动引起的血清酶活性的升高,对防止肌肉组织的损伤和增加细胞膜的稳定性有一定的作用。
Aim： To investigate the influnce of living high-training low for 4 weeks on serum CK,LDH and ALT of rowing athletes. Methods： 20 rowing athletes were divided into two groups： the one （ten subjects） spent 8- 10 h per night in a tabernacle which was simulated altitude of 2 500 m in norrnobaric hypoxia（HiLo group）, the another（ten subjects） slept at near sea level（control group）. During the periods of test, all athletes were trained at the same relative or at the same intensity of work in norrnoxia state. The serum CK, LDH and ALT were measured at before, during 2 weeks, 4 weeks and 2 weeks after “living high and training low”. Results： Baseline serum values for CK, LDH and ALT were not different between two groups（ P 〉0.05）. The levels of CK,LDH of HiLo group were significantly increased（ P 〈 0.05） than those of control group at 3 rd week, however, it was contrary at 5^th and 7^th week. After exercise of 2 km and 5 kin, the values of LDH and CK at a moment notice and 30min postexercise test in HiLo group were significant lower than those in control group. Conclusion： These results indicate that living high-training low may reduce the muscle damage associated with endurance exercise.
出处
《中国应用生理学杂志》
CAS
CSCD
北大核心
2005年第3期349-352,共4页
Chinese Journal of Applied Physiology
基金
湖南省科技厅专项资金(重点)资助项目(02ssy3007)
作者简介
刘建红（1968-），男，副研究员，硕士，主要从事低氧训练中的运动医学研究。
