Key result
A higher healthy lifestyle score was significantly associated with greater heart rate variability (SDNN) in young adults (β-estimate 0.14 per 1-point increase; 95% CI 0.11-0.17; p<0.0001).
Why the study?
Does a higher healthy lifestyle score improve heart rate variability in young adults without cardiovascular disease?
Cohort (n=2,079)
Does a higher healthy lifestyle score improve heart rate variability in young adults without cardiovascular disease?
Effect estimate: β-estimate 0.14 (95% CI 0.11-0.17)
p-value: p=< 0.0001
Adopting a comprehensive healthy lifestyle is significantly associated with improved autonomic function, as measured by heart rate variability, in young adults.
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Healthy lifestyle score was associated with higher SDNN; extends observational HRV evidence but remains hypothesis-generating.
Aeschbacher et al. (2015) conducted a cohort in Without prevalent cardiovascular disease (n=2,079). Healthy lifestyle score vs. Lower lifestyle score was evaluated on Standard deviation of all normal RR intervals (SDNN) during 24-hour electrocardiography (β-estimate 0.14, 95% CI 0.11-0.17, p=< 0.0001). A higher healthy lifestyle score was significantly associated with greater heart rate variability (SDNN) in young adults (β-estimate 0.14 per 1-point increase; 95% CI 0.11-0.17; p<0.0001).