August 1, 1996Clinical Science
Poincaré Plot of Heart Rate Variability Allows Quantitative Display of Parasympathetic Nervous Activity in Humans
Why the study?
Does the width of the Poincaré plot accurately reflect parasympathetic nervous system activity in healthy subjects?
Structured PICO
Does the width of the Poincaré plot accurately reflect parasympathetic nervous system activity in healthy subjects?
P
Population
12 healthy subjects aged between 20 and 40 years (mean 30 +/- 7 years)
I
Intervention
Physiological and pharmacological autonomic modulation (head-up tilt, intravenous atropine, transdermal scopolamine)
C
Comparator
Supine rest
O
Outcome
Width of the Poincaré plot (SD delta R-R) and its correlation with high-frequency powersurrogate
The width of the Poincaré plot provides a valid, quantitative visual measure of parasympathetic nervous system activity using short-term R-R interval data.
Authors
Discussion
No takes yet. Share an insight, caveat, or question.
Implication
May offer a simple visual parasympathetic marker from short-term R-R data; leaves open validation in patients and clinical use.
Cite This Study
Kamen et al. (1996) studied this question.