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Sex Differences and Heritability of Two Indices of Heart Rate Dynamics: A Twin Study
2007
Twin Research and Human Genetics
AbstractWe investigated whether women show larger heart rate variability (HRV) than men after controlling for a large number of health-related covariates, using two indices of HRV, namely respiratory sinus arrhythmia (RSA) and approximate entropy (ApEn). In a twin design, the heritability of both indices was examined. The covariation between RSA and ApEn, a measure of heart rate dynamics derived from nonlinear dynamical systems theory, was decomposed into genetic and environmental components.
doi:10.1375/twin.10.2.364
pmid:17564526
fatcat:ojdnqvsnhrcztftvpcluonu2rq