Decreased vagally mediated heart rate variability does not appear to explain the cardiovascular health disparities observed in African Americans.
These findings suggest that decreased vagally mediated HRV is not likely to account for the persistent health disparities experienced by AAs with respect to CVD risk and burden. These disparities underscore the need for continued research addressing socioethnic cardiovascular differences and the biobehavioral mechanisms involved.
Hill et al. (Thu,) studied this question.