运动与氧化应激

Oxidative and sports

运动与自由基研究是运动医学中的一个重要课题。研究发现,机体进行大强度运动时,体内氧自由基的大量增加是导致运动性疲劳发生的一个重要因素。因此,如何有效地提高自由基的清除能力和预防产生过量的自由基,对提高运动员的运动水平具有十分重要的意义。氧化过程占主导地位,可导致氧化损伤和机体生理机能的减退,促进生物体衰老与死亡。长期有氧训练,有利于促进自由基的消除,抑制增龄引起的抗氧化能力降低,调节机体氧化与抗氧化系统的平衡,对机体产生有益影响,这是运动延缓衰老的主要机制之一。

Research on exercise and free radicals has risen in importance in the field of sports medicine.Strenuous exercise and increased oxygen consumption will cause an increase of free radicals.Low intensity exercise,however,helps to strengthen the antioxidant system against oxidative stress.It suggests that the content of oxygen free radicals in the body increases after high intensity exercise,which is a major factor to cause fatig.So appropriate fatigue and recovery are the key to improve the capability of exerc...