摘要
目的探讨高氧恢复对低氧运动大鼠体成分、血清生长激素及睾酮的影响。方法雄性8周龄SD大鼠28只,随机分为常氧运动组(n=9)、低氧运动组(n=10)、低氧运动高氧恢复组(n=9)。常氧运动组每天以25 m/min进行1 h跑台运动,低氧运动组大鼠进行低氧环境暴露(O2含量为15.4%)约为23±1 h/d。低氧运动干预为每天20 m/min的跑台运动1 h,高氧恢复组大鼠经相同低氧训练后即刻进高氧舱吸高浓度氧(O2含量最高为97.2%)0.5 h;每周6天,持续4周。结果:实验后高氧恢复组与低氧运动组之间体成分、血清GH、T差异均不显著(脂肪重P=0.9,腓肠肌重P=0.89,生长激素P=0.865,睾酮P=0.814>0.05),其中高氧恢复组大鼠体重高于低氧运动组大鼠;而高氧恢复组血清GH含量高于低氧运动组,但低于常氧运动组;高氧恢复组血清T含量最低。结论:低氧运动后高氧恢复30 min对体成分、血清生长激素及睾酮的含量影响并不显著。
Objective： To discuss the influence and mechanism of hypoxia- training with hyperxia- recover on body composition. Method： 28 adult male Sprague- Drawly（SD） rats were randomly divided into3groups： traing at low altitude, living high- training high, living high - training high with hyperxia - recovering. The hypoxic groups lived in the hypoxic environment（the oxygen content was 15.4%） for 24h. The rats were trained on a treadmill using a progressive protocol that plateaued at 25 m/min in normal environment and at 20 m/min in hypoxic environment for 1hr/day, 6days/week and four weeks total. After exercised, the group was recovered in hyperxia for half an hour. Result： The body composition and concentration of serum hormone changed after test without statistic significance among these groups（ P 〉 0.05）. The weight of hyperxia- recovering group was higher than hypoxia- training group. The concentration of GH of hyperxia- recovering group was between the two control groups. At the same time the testosterone＇s concentration of hyperxia- recovering group was lowest. Conclusion： The hypoxia- training with hyperxia- recover didn＇ t increased significantly the using of serum growth homone and testosterone, and body composition.
出处
《西安体育学院学报》
CSSCI
北大核心
2010年第3期331-334,共4页
Journal of Xi'an Physical Education University
基金
广东省教育厅自然科学项目(04J009)
关键词
高氧恢复
低氧运动
体成分
GH
T
hyperxia-rcovering
hypoxia-training
Body Composition
Growth Hormone
Testosterone
