Why the study?
Does a higher physical fitness level reduce autonomic nervous system responses to acute psychosocial stress in male recruits?
Population
302 male recruits during their first week of Swiss Army basic training
Comparison
High physical fitness level vs Lower physical fitness level
Design
Cross-sectional
Key result
Higher aerobic fitness significantly predicted a lower overall heart rate response (area under the curve) and lower salivary alpha amylase levels following acute psychosocial stress.
Authors
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Fitness may buffer autonomic reactivity to acute stress in recruits; leaves open whether training confers causal protection.
Cross-Sectional (n=219)
No
Does a higher physical fitness level reduce autonomic nervous system responses to acute psychosocial stress in male recruits?
Effect estimate: B = -0.447 (95% CI -0.618 to -0.276)
p-value: p=<0.001
Good physical fitness, particularly aerobic endurance, is associated with attenuated autonomic nervous system responses to acute psychosocial stress.
Wyss et al. (2016) conducted a cross-sectional in Healthy (n=219). Aerobic fitness level vs. Low aerobic fitness level was evaluated on Heart rate response (area under the curve, HR-AUCg) during acute psychosocial stress (B = -0.447, 95% CI -0.618 to -0.276, p=<0.001). Higher aerobic fitness significantly predicted a lower overall heart rate response (area under the curve) and lower salivary alpha amylase levels following acute psychosocial stress.
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