ArticlePsychophysiology2026
Does Aerobic Capacity Protect Against Stress? Insights From Two Stress-Induction Paradigms.
Article in Psychophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Prior evidence suggests that individuals with higher fitness exhibit attenuated endocrine and autonomic responses to acute psychological and physical stressors. However, it remains unclear whether this stress-buffering effect depends on the type of stressor. This study examined whether aerobic capacity modulates psychophysiological responses to two stress-induction paradigms (Trier Social Stress Tests, TSST; Maastricht Acute Stress Test, MAST). We hypothesized that fitter participants show lower stress reactivity, with stronger attenuation expected for the MAST, which includes a physical stress component. Healthy participants (n = 59; 28 women; age: 27.1 ± 5.5 years) completed the TSST and MAST on separate days under standardized conditions. We assessed self-reported stress, salivary hormones (cortisol, cortisone, DHEAS), and autonomic cardiac regulation (heart rate and root mean square of successive differences of heart periods). Aerobic fitness was determined via graded exercise testing (peak oxygen uptake; V̇O
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