Objective The aim of this study was to assess age-related changes in cardiac autonomic
modulation and heart rate variability (HRV) and their association with spontaneous and …

Background Heart rate variability (HRV) is determined by intrinsic sinoatrial node (SAN)
activity and the autonomic nervous system (ANS). HRV is reduced in aging; however, aging …

Heart rate variability (HRV) is a measure of variation in time interval between heartbeats and
reflects the influence of autonomic nervous system and circulating/locally released factors …

Mice are among the most widely used translational models of cardiovascular aging and offer
a method to quickly assess lifespan changes in a controlled environment. The standard …

The analysis of beating rate provides information on the modulatory action of the autonomic
nervous system on the heart, which mediates adjustments of cardiac function to meet …

The electrical stability of the myocardium is dependent on the dynamic balance between
sympathetic and parasympathetic influences on the heart, which is reflected by heart rate …

We developed a technology for heart rate (HR) variability (HRV) analysis in the mouse for
characterization of HR dynamics, modulated by vagal and sympathetic activity. The mouse is …

The present study aimed to investigate sex differences in measures of cardiac chronotropy
and heart rate variability (HRV) in 132 young adult wild-type Groningen rats (n= 45 females) …

Heart failure (HF) is predominantly a disease of older adults and characterized by extensive
sympatho-vagal imbalance leading to impaired reflex control of heart rate (HR). However …

Heart rate (HR) and blood pressure as well as adverse cardiovascular events show clear
circadian patterns, which are linked to interdependent daily variations in physical activity …