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首页> 美国卫生研究院文献>Oxidative Medicine and Cellular Longevity >Changes in Athletes Redox State Induced by Habitual and Unaccustomed Exercise
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Changes in Athletes Redox State Induced by Habitual and Unaccustomed Exercise

机译：习惯性运动和不习惯运动引起的运动员氧化还原状态的变化

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The purpose of this study was to assess the influence of sport-specific and nonspecific bouts of exercise on athletes' redox state. Blood samples were collected from 14 handball players immediately before and after graded exercise test on the cycle ergometer and handball training. Levels of superoxide anion radical (O2−), hydrogen peroxide (H2O2), nitrites (NO2−) as markers of nitric oxide, index of lipid peroxidation (TBARs), glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) activity were determined. Exercise intensity was assessed by a system for heart rate (HR) monitoring. Average athletes' HR was not significantly different between protocols, but protocols differed in total time and time and percentage of time that athletes spent in every HR zone. The laboratory exercise test induced a significant increase of H2O2 and TBARs as well as the decrease of the SOD and CAT activity, while after specific handball training, levels of NO2− were increased and SOD activity decreased. It seems that unaccustomed short intensive physical activity may induce oxidative stress in trained athletes, while sport-specific activity of longer duration and proper warm-up period may not. Further research should show whether the change of protocol testing and the implementation of various supplementations and manual methods can affect the redox equilibrium.
机译：这项研究的目的是评估特定运动和非特定运动对运动员氧化还原状态的影响。在对自行车测功计和手球训练进行分级运动测试之前和之后，立即从14名手球运动员那里采集了血样。一氧化氮标志物超氧阴离子自由基（O2 -），过氧化氢（H2O2），亚硝酸盐（NO2 -）的水平，脂质过氧化指数（TBARs），谷胱甘肽（GSH），超氧化物歧化酶（SOD）和过氧化氢酶（CAT）活性进行了测定。运动强度通过心率（HR）监测系统进行评估。协议之间的平均运动员HR并无显着差异，但协议的总时间和时间以及运动员在每个HR区域花费的时间百分比不同。实验室运动测试导致H2O2和TBARs显着增加，以及SOD和CAT活性降低，而在进行特定的手球训练后，NO2 -的水平升高而SOD活性降低。似乎不习惯的短时间密集运动可能会在训练有素的运动员中诱发氧化应激，而较长时间和适当的热身期的运动特定活动则可能不会。进一步的研究应表明协议测试的更改以及各种补充和手动方法的实施是否会影响氧化还原平衡。

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