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 …

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 …

Background Although autonomic imbalance is known to be characteristic of patients with
clinically overt symptomatic congestive heart failure, it is currently unknown whether this …

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 …

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 …

Background: Heart rate variability (HRV) is an indicator of autonomic nervous system
functionality and a recognized predictor of cardiac death; however, the changes in HRV …

Heart failure is associated with autonomic imbalance, and this can be evaluated by a
spectral analysis of heart rate variability. However, the time course of low-frequency (LF) and …

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 …

Aims Ventricular arrhythmias are a common cause of death in patients with heart failure
(HF). Structural and electrical abnormalities in the heart provide a substrate for such …