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首页> 外文期刊>European Journal of Translational Myology >Exercise-induced hypoxia and structural and metabolic adaptation of skeletal muscle
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Exercise-induced hypoxia and structural and metabolic adaptation of skeletal muscle

机译：运动引起的缺氧与骨骼肌的结构和代谢适应

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We hypothesised that elevated oxygen concentration during exercise on rats exhibits smaller muscle structural and metabolic adaptations of skeletal muscles than rats under the same training protocol in normoxia. Changes in m. tibialis anterior after 6-week training by swimming under hyperoxic condition (SO) were compared with those trained in normoxia (SN) and sedentary control rats (C). Capillary-to-fibre ratio was increased in SO and SN group as compared to C. The cross-sectional area was significantly increased in fast glycolytic (FTb) fibres of SO and SN but not in FTa fibres. Myoglobin (MG) concentration in SN was 21% higher in the fast oxidative (FTa) fibres, as well the succinate dehydrogenase (SDH), cytochrome c oxidase (cyt.c) and a -glycerophosphate dehydrogenase (a -GPDH) activity were 18, 56 and 45% higher respectively, than in C group (p
机译：我们假设，在相同的正常氧训练方案下，大鼠运动过程中的氧气浓度升高，其骨骼肌的肌肉结构和代谢适应性比大鼠小。米的变化将在高氧条件下（SO）游泳训练6周后的胫前肌与在正常氧（SN）和久坐的对照组（C）中训练的胫骨前相比。与C相比，SO和SN组的毛纤比增加。SO和SN的快速糖酵解（FTb）纤维的横截面积显着增加，而FTa纤维却没有。快速氧化（FTa）纤维中SN中的肌红蛋白（MG）浓度高21％，琥珀酸脱氢酶（SDH），细胞色素c氧化酶（cyt.c）和-甘油磷酸脱氢酶（a -GPDH）的活性为18分别比C组高56％和45％（p

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