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Updated: Jul 11, 2026
07:26
Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
Physical exercise-associated gene expression signatures in peripheral blood
Tomoko Kawai1, Kyoko Morita, Kiyoshi Masuda
1Department of Stress Science, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
Summary
Physical stress from exercise alters gene expression in blood cells. Exhaustive exercise, unlike aerobic, triggers a delayed response in genes related to neurotransmitter receptors, offering insights into stress and exhaustion.
Area of Science:
- Exercise physiology
- Molecular biology
- Genomics
Background:
- Assessing physiological responses to physical stress is crucial for understanding human adaptation.
- Gene expression analysis in peripheral blood offers a non-invasive window into systemic responses to exercise.
Purpose of the Study:
- To investigate gene expression changes in peripheral blood cells following different exercise intensities.
- To identify specific genes responsive to acute aerobic and exhaustive exercise.
Main Methods:
- Peripheral blood gene expression was profiled using a microarray with 1467 stress-responsive cDNA probes.
- Healthy male students underwent controlled aerobic or exhaustive cycling exercise.
- Gene expression was measured at 4, 24, and 48 hours post-exercise.
Main Results:
- Both aerobic and exhaustive exercise transiently altered the expression of 21 and 16 genes, respectively, peaking at 4 hours.
- Exhaustive exercise induced a secondary gene expression response at 24 hours, affecting 14 genes, including five neurotransmitter receptor genes.
- Only two genes showed significant response to both exercise types.
Conclusions:
- Gene expression patterns in peripheral blood can serve as objective markers for acute physical stress.
- The distinct gene expression profiles highlight differential responses to aerobic versus exhaustive exercise.
- Neurotransmitter receptor gene modulation following exhaustive exercise suggests potential central nervous system involvement in fatigue.
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