Why the study?
Does a constant-routine protocol alter long-term heart rate variability compared to a daily routine in healthy subjects?
Population
7 healthy subjects
Comparison
Constant-routine protocol vs Daily-routine protocol
Design
Other
Follow-up
27 hours
Authors
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Very-low-frequency HRV interpretation requires behavioral context clinically; leaves open optimal protocols for isolating intrinsic rhythms in research.
Does a constant-routine protocol alter long-term heart rate variability compared to a daily routine in healthy subjects?
Long-term heart rate variability at frequencies below 10(-3.5) Hz is strongly influenced by behavioral factors, whereas higher frequencies appear behavior-independent.
Aoyagi et al. (2003) studied this question.
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