Key result
Poor physical fitness was associated with impaired cardiac vagal function during exercise (SD1n 6 vs 13 at 100W; P<0.001), whereas aging resulted in more evident impairment at rest (P<0.001).
Why the study?
How do age and physical fitness affect vagal modulation of heart rate at rest and during exercise in healthy males?
Population
Healthy males divided into age groups matched for VO2 peak, and physical fitness groups matched for age.
Comparison
Bicycle exercise test vs Comparisons across different age groups and…
Design
Cross-sectional
Authors
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Distinct fitness- and age-related vagal impairments may guide risk stratification; hypothesis-generating and requires prospective confirmation.
Cross-Sectional (n=86)
How do age and physical fitness affect vagal modulation of heart rate at rest and during exercise in healthy males?
p-value: p=<0.001
Tulppo et al. (1998) conducted a cross-sectional in Healthy (n=86). Age and physical fitness vs. Different age and fitness groups was evaluated on Vagal modulation of heart rate (SD1n) at rest and during exercise (p=<0.001). Poor physical fitness was associated with impaired cardiac vagal function during exercise (SD1n 6 vs 13 at 100W; P<0.001), whereas aging resulted in more evident impairment at rest (P<0.001).
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