Key result
A 5-day progressive exercise program post-AMI is linked to a ~82% increase in high-frequency HRV.
Why the study?
Heart rate variability decreases after acute myocardial infarction due to changes in cardiac autonomic balance, and the effects of progressive exercise during phase I cardiac rehabilitation on HRV were evaluated.
Does a 5-day progressive exercise program during phase I cardiac rehabilitation improve heart rate variability in patients with first non-complicated acute myocardial infarction?
Comparison
Progressive exercise programme vs respiratory exercises only
Design
Cohort study
Follow-up
5 days
Authors
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May support autonomic recovery with early post-AMI exercise; hypothesis-generating and should not yet change phase I protocols.
Does a 5-day progressive exercise program during phase I cardiac rehabilitation improve heart rate variability in patients with first non-complicated acute myocardial infarction?
p-value: p=<0.05
A 5-day progressive exercise program during phase I cardiac rehabilitation increases vagal and decreases sympathetic cardiac modulation in patients post-AMI.
Santos-Hiss et al. (2010) studied Acute myocardial infarction (n=37). Progressive exercise program vs. Respiratory exercises only was evaluated on Heart rate variability (HFnu, LFnu, LF/HF) (p=<0.05). A 5-day progressive exercise program during phase I cardiac rehabilitation increased high-frequency HRV (35.9 to 65.19 nu) and decreased low-frequency HRV in post-AMI patients (p<0.05).
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