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Updated: May 14, 2026
09:04
Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
Published on: February 20, 2018
Oxidative stress and skeletal muscle in exercise
Paola Castrogiovanni1, Rosa Imbesi
1Department of Bio-Medical Science, University of Catania, Italy. pacastro@unict.it
Summary
Physical exercise increases reactive oxygen species (ROSs), causing oxidative stress. However, the body
Area of Science:
- Exercise Physiology
- Cellular Biology
- Aging Research
Background:
- Reactive oxygen species (ROSs) are linked to cellular damage and oxidative stress, particularly during physical exercise.
- While the body's antioxidant defenses can manage free radicals at rest, intense physical activity can overwhelm these systems.
- Aging skeletal muscle exhibits deterioration, with redox processes potentially playing a significant role in these age-related changes.
Purpose of the Study:
- To explore the relationship between physical exercise, oxidative stress, and cellular adaptations in skeletal muscle.
- To investigate the role of antioxidant defenses and heat shock proteins (HSPs) in mitigating exercise-induced oxidative stress.
- To examine the potential involvement of redox processes in skeletal muscle aging.
Main Methods:
- Analysis of reactive oxygen species (ROSs) production during physical exercise.
- Assessment of antioxidant defense mechanisms in resting versus exercising states.
- Evaluation of heat shock protein (HSP) expression in skeletal muscle as a cytoprotective response.
- Review of existing data on redox processes in age-related skeletal muscle decline.
Main Results:
- Physical exercise, varying in type, intensity, and duration, induces increased ROSs production, indicative of oxidative stress.
- Skeletal muscle exhibits a cytoprotective response through the increased production of heat shock proteins (HSPs).
- Redox processes are implicated as a key factor in the deterioration observed in skeletal muscle during aging.
Conclusions:
- Physical activity induces oxidative stress, but also triggers adaptive cytoprotective mechanisms like HSP production in skeletal muscle.
- Understanding these redox dynamics is crucial for comprehending skeletal muscle function during exercise and aging.
- Further research into redox processes may reveal interventions to combat age-related muscle decline.
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