Exercise-induced oxidative stress:Friend or foe?  

作　　者：Scott K.Powers Rafael Deminice Mustafa Ozdemir Toshinori Yoshihara Matthew P.Bomkamp Hayden Hyatt 

机构地区：[1]Department of Applied Physiology and Kinesiology,University of Florida,Gainesville,FL,32608,USA [2]Department of Physical Education,State University of Londrina,Londrina,10011,Brazil [3]Department of Exercise and Sport Sciences,Hacettepe University,Ankara,06800,Turkey [4]Department of Exercise Physiology,Juntendo University,Tokyo,270-1695,Japan

出　　处：《Journal of Sport and Health Science》2020年第5期415-425,共11页运动与健康科学（英文）

摘　　要：The first report demonstrating that prolonged endurance exercise promotes oxidative stress in humans was published more than 4 decades ago.Since this discovery,many ensuing investigations have corroborated the fact that muscular exercise increases the production of reactive oxygen species(ROS)and results in oxidative stress in numerous tissues including blood and skeletal muscles.Although several tissues may contribute to exercise-induced ROS production,it is predicted that muscular contractions stimulate ROS production in active muscle fibers and that skeletal muscle is a primary source of ROS production during exercise.This contraction-induced ROS generation is associated with(1)oxidant damage in several tissues(e.g.,increased protein oxidation and lipid peroxidation),(2)accelerated muscle fatigue,and(3)activation of biochemical signaling pathways that contribute to exercise-induced adaptation in the contracting muscle fibers.While our understanding of exercise and oxidative stress has advanced rapidly during the last decades,questions remain about whether exercise-induced increases in ROS production are beneficial or harmful to health.This review addresses this issue by discussing the site(s)of oxidant production during exercise and detailing the health consequences of exercise-induced ROS production.

关 键 词：HORMESIS OXIDANTS RADICALS Reactive oxygen species Skeletal muscle 

分 类 号：G804.2[文化科学—运动人体科学]