Key result
Using heart rate as the chronotropic metric can overstate the extent of autonomic interactions compared to using heart period, which varies more linearly with autonomic control.
Why the study?
Does the choice of chronotropic metric (heart period vs heart rate) affect the characterization of autonomic interactions?
Population
Simulated and published empirical data on cardiac chronotropic function
Comparison
Heart period as the chronotropic metric vs Heart rate as the chronotropic metric
Design
Other
Authors
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Heart rate may overstate autonomic interactions; leaves open optimal chronotropic metric standardization in autonomic research.
Does the choice of chronotropic metric (heart period vs heart rate) affect the characterization of autonomic interactions?
Using heart rate rather than heart period as a chronotropic metric may overstate the extent of autonomic interactions.
Quigley et al. (1996) studied Autonomic control of the heart. Heart period metric vs. Heart rate metric was evaluated on Autonomic interactions. Using heart rate as the chronotropic metric can overstate the extent of autonomic interactions compared to using heart period, which varies more linearly with autonomic control.
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