Cited by 441Exercise and Physiological ResponsesCardiovascular and exercise physiologyAntioxidant Activity and Oxidative Stress

Exercise-induced oxidative stress in humans: cause and consequences

Powers, Scott K., Nelson, W. Bradley, Hudson, Matthew B.·2011·Free Radical Biology and Medicine

Abstract

The observation that muscular exercise is associated with oxidative stress in humans was first reported over 30 years ago. Since this initial report, numerous studies have confirmed that prolonged or high-intensity exercise results in oxidative damage to macromolecules in both blood and skeletal muscle. Although the primary tissue(s) responsible for reactive oxygen species (ROS) production during exercise remains a topic of debate, compelling evidence indicates that muscular activity promotes oxidant production in contracting skeletal muscle fibers. Mitochondria, NADPH oxidase, PLA₂-dependent processes, and xanthine oxidase have all been postulated to contribute to contraction-induced ROS production in muscle but the primary site of contraction-induced ROS production in muscle fibers remains unclear. Nonetheless, contraction-induced ROS generation has been shown to play an important physiological function in the regulation of both muscle force production and contraction-induced adaptive responses of muscle fibers to exercise training. Although knowledge in the field of exercise and oxidative stress has grown markedly during the past 30 years, this area continues to expand and there is much more to be learned about the role of ROS as signaling molecules in skeletal muscle.

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Crossref · 10.1016/j.freeradbiomed.2010.12.009

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  • Exercise acutely activates ROS production, which is essential for force generation within skeletal muscle, signaling to distal tissues and activating antioxidants.

    “Exercise acutely activates ROS production, which is essential for force generation within skeletal muscle, signaling to distal tissues and activating antioxidants. This adaptation ensures homeostasis and prevention of excess oxidative stress (25).”

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Authors
Powers, S. K., Nelson, W. B., & Hudson, M. B.
Affiliations
University of Florida (US)
Corresponding author
Powers, Scott K.
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2011-09
Volume
51
Issue
5
Pages
942-950
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2076659633
Cited by
441
References
162
Citations by year
2026: 21 · 2025: 14 · 2024: 25 · 2023: 21 · 2022: 31 · 2021: 34 · 2020: 43 · 2019: 35 · 2018: 32 · 2017: 28 · 2016: 27 · 2015: 33 · 2014: 43 · 2013: 19 · 2012: 23
FWCI
2.81
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (R01HL072789)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
exercise-induced oxidative stress, reactive oxygen species, skeletal muscle, muscle contraction, mitochondria, NADPH oxidase, phospholipase A2, xanthine oxidase, training effects, muscle force production, ROS signaling
MeSH terms
Adaptation, Physiological, Animals, Humans, Muscle Contraction, Oxidation-Reduction, Exercise, Reactive Oxygen Species, Oxidative Stress, Muscle, Skeletal

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