Why the study?
Are temporal and spectral heart rate variability indices reproducible over time, and do they differ by gender in healthy young adults?
Population
32 healthy volunteers (14 men and 18 women), mean age 29 +/- 3 years
Comparison
24-hour Holter recordings during 2 days of usual… vs Day 1 vs Day 2 and Men vs Women
Design
Cohort
Follow-up
2 days
Authors
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HRV reproducibility and higher female vagal indices in young adults support normative references; leaves open outcome prediction or intervention trials.
Are temporal and spectral heart rate variability indices reproducible over time, and do they differ by gender in healthy young adults?
Heart rate variability indices are reproducible over 2 days of normal activity, and young women exhibit higher vagal tone compared to men.
Sztajzel et al. (2008) studied this question.
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