4.3 Review

Effects of Exercise-Induced ROS on the Pathophysiological Functions of Skeletal Muscle

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HINDAWI LTD
DOI: 10.1155/2021/3846122

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  1. Key Projects of Scientific and Technological Innovation in Fujian Province [2021G02021, 2021G02023]
  2. Special Funds of the Central Government Guilding Local Science and Technology Development [2020L3008]
  3. Fujian Provincial Natural Science Foundation [2019R1011-3, 2020J01176]
  4. Scientific Research Talent Project of Fujian Provincial Health Commission [2018-ZQN-20]

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Oxidative stress, caused by imbalance of redox system, can lead to cellular damage. Exercise-induced oxidative stress has different effects on skeletal muscle, with moderate exercise promoting muscle adaptation and excessive exercise causing muscle fatigue and damage.
Oxidative stress is the imbalance of the redox system in the body, which produces excessive reactive oxygen species, leads to multiple cellular damages, and closely relates to some pathological conditions, such as insulin resistance and inflammation. Meanwhile, exercise as an external stimulus of oxidative stress causes the changes of pathophysiological functions in the tissues and organs, including skeletal muscle. Exercise-induced oxidative stress is considered to have different effects on the structure and function of skeletal muscle. Long-term regular or moderate exercise-induced oxidative stress is closely related to the formation of muscle adaptation, while excessive free radicals produced by strenuous or acute exercise can cause muscle oxidative stress fatigue and damage, which impacts exercise capacity and damages the body's health. The present review systematically summarizes the relationship between exercise-induced oxidative stress and the adaptions, damage, and fatigue in skeletal muscle, in order to clarify the effects of exercise-induced oxidative stress on the pathophysiological functions of skeletal muscle.

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