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Updated: Jul 5, 2026

Induction and Assessment of Exertional Skeletal Muscle Damage in Humans
Published on: December 11, 2016
Inflammatory response to strenuous muscular exercise in man
G Camus1, G Deby-Dupont, C Deby
1Research Associate, FNRS Laboratory of Human Applied Physiology, ISEPK, B21 University of Liège Sart Tilman Liège 4000 Belgium.
Strenuous exercise triggers an inflammatory response to exercise (IRE), involving various physiological changes. While generally a repair process, excessive IRE may have negative health impacts, warranting further research.
Area of Science:
- Exercise Physiology
- Immunology
- Sports Medicine
Background:
- Strenuous muscular work induces significant humoral and cellular changes in humans.
- These changes form the basis for the concept of inflammatory response to exercise (IRE).
Purpose of the Study:
- To define the concept of inflammatory response to exercise (IRE).
- To identify the main indices and potential triggers of IRE.
- To discuss the physiological and potential physiopathological consequences of IRE.
Main Methods:
- Review of humoral and cellular changes during strenuous exercise.
- Identification of key indicators of IRE.
- Analysis of potential triggering mechanisms based on exercise parameters.
Main Results:
- Key indices of IRE include acute phase response, leucocytosis, inflammatory mediators, tissue damage, free radicals, complement activation, and coagulation/fibrinolytic pathways.
- Potential triggers involve muscle/connective tissue damage, endothelial shear stress, and endotoxemia.
- IRE is generally physiological, aiding tissue repair, but can be exaggerated.
Conclusions:
- The inflammatory response to exercise (IRE) is a complex physiological reaction to strenuous physical activity.
- While typically beneficial for tissue repair, excessive IRE may pose health risks.
- Further investigation is needed on factors influencing IRE and its risks in athletes.
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