Article
Heritability of respiratory sinus arrhythmia: Dependency on task and respiration rate
1 May 1997
Abstract excerpt
In this study, we investigated the genetic and environmental origin of individual differences in respiratory sinus arrhythmia (RSA) during rest and during four stress tasks. We used a multivariate model including age, RSA, and respiration rate. Participants were 208 male and female pairs of middle-aged twins. A model without sex differences, specifying additive genetic and unique environmental factors, showed the...
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