Heritability and genetic correlations of heart rate variability at rest and during stress in the Oman Family Study.

ABSTRACT:

Introduction

Individual differences in heart rate variability (HRV) can be partly attributed to genetic factors that may be more pronounced during stress. Using data from the Oman Family Study (OFS), we aimed to estimate and quantify the relative contribution of genes and environment to the variance of HRV at rest and during stress; calculate the overlap in genetic and environmental influences on HRV at rest and under stress using bivariate analyses of HRV parameters and heart rate (HR).

Methods

Time and frequency domain HRV variables and average HR were measured from beat-to-beat HR obtained from electrocardiogram recordings at rest and during two stress tests [mental: Word Conflict Test (WCT) and physical: Cold Pressor Test (CPT)] in the OFS - a multigenerational pedigree

SUBMITTER: Munoz ML 

PROVIDER: S-EPMC5991177 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature