Vol 6, Issue 2

Stress Reactivity in Humans and Animals: Two Meta-Analyses Authorsc

Authors

Brad WipfliOregon Health & Science University
Ernesto RamirezSan Diego State University and University of California, San Diego
International Journal of Exercise Science 6(2) : 144-156, 2013. 
DOI: 10.70252/OCQT5458

Abstract

Previous meta-analyses examining the effects of exercise on stress reactivity have included methodologically weak studies; we therefore conducted a meta-analysis utilizing more stringent inclusion criteria. An analysis of 33 randomized controlled trials involving humans (= 1,252) revealed a moderate effect (ES = -0.31; 95% CI = -.43, -.20) for exercise as a method to reduce stress reactivity. An additional analysis with 27 randomized controlled trials of physical activity in animals (= 462) also revealed a moderate reduction (ES = -0.33; 95% CI = -0.15, -0.52) in stress reactivity. The combined results of these analyses indicate that exercise diminishes the negative effects of increased reactivity to stressors.

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