Heart Rate Variability, Heart Rate Recovery, and Heart Rate Turbulence Represent Different Components of the Cardiac Autonomic Nervous System

Heart Rate Variability, Heart Rate Recovery, and Heart Rate Turbulence Represent Different Components of the Cardiac Autonomic Nervous System

Heart rate variability and heart rate in healthy volunteers. Is the female autonomic nervous system cardioprotective?

AIMS Heart rate variability has been proposed as an indicator of cardiovascular health. Since women have a lower cardiovascular risk, we hypothesized that there are gender differences in autonomic modulation. METHODS AND RESULTS In 276 healthy subjects (135 women, 141 men) between 18 and 71 years of age, 24 h heart rate and heart rate variability were determined. All heart rate variability pa...

Variable effects of physical training of heart rate variability, heart rate recovery, and heart rate turbulence in chronic heart failure.

BACKGROUND Heart rate variability (HRV), heart rate turbulence (HRT), and heart rate recovery (HRR), indices that reflect autonomic nervous system (ANS) activity, are outcome predictors in patients with chronic heart failure (CHF). It is not clear, however, whether they reflect the same components of ANS activity. No study has examined the effects of physical training (PT) training on HRV, HRT,...

Assessment of Autonomic Function with Heart Rate Turbulence and Heart Rate Variability in Young Obese Patients

Background: Sudden cardiac death (SCD) is a main cause of cardiovascular mortality in developed countries. Obesity-related impairment of the cardiovascular system may be exist even at the young age, and progress asymptotical for decades before clinical manifestations present in. Death may be sudden in obese individuals with or without arrhythmias Heart rate turbulence (HRT) and Heart rate varia...

Heart rate variability and heart rate recovery as prognostic factors

BACKGROUND AND AIM Heart rate (HR) can appear static and regular at rest, during exercise or recovery after exercise. However, HR is constantly adjusted due to factors such as breathing, blood pressure control, thermoregulation and the renin-angiotensin system, leading to a more dynamic response that can be quantified using HRV (heart rate variability). HRV is defined as the deviation in time b...