A Longitudinal Study of Physical Activity and Heart Rate Recovery: CARDIA, 1987???1993
Why the study?
Does higher physical activity improve heart rate recovery in young adults?
Population
Diverse, population-based sample of young adults from the Coronary Artery Risk Development in Young Adults…
Comparison
Highest tertile of self-reported total physical… vs Lowest tertile of physical activity or decreased…
Design
Cohort
Follow-up
7 years
Authors
Discussion
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Member takes
Implication
Higher activity may preserve HRR in young adults; hypothesis-generating for whether increasing exercise slows autonomic decline.
Structured PICO
Does higher physical activity improve heart rate recovery in young adults?
P
Population
Diverse, population-based sample of young adults from the Coronary Artery Risk Development in Young Adults (CARDIA) study (N=3446 at baseline, N=1627 at 7 yr follow-up)
I
Intervention
Highest tertile of self-reported total physical activity (sum of moderate- and heavy-intensity activities) or stable/increased physical activity over 7 years
C
Comparator
Lowest tertile of physical activity or decreased physical activity over 7 years
O
Outcome
Heart rate recovery (HRR), defined as the difference between maximum heart rate and heart rate 2 min after exercise test cessationsurrogate
Higher levels of physical activity are associated with better heart rate recovery, suggesting that regular exercise may blunt age-related declines in autonomic nervous system function.
Cite This Study
Carnethon et al. (2005) studied this question.