Abstract Background Spectral analysis of Heart Rate Variability (HRV) is a simple, non-
invasive technique that is widely used in sport to assess sympatho-vagal regulation of the …

Objective Heart rate variability (HRV) analysis has been used to evaluate patients with
various cardiovascular diseases. While the vast majority of HRV studies have focused on …

(HRV) as a Tool for Diagnostic and Monitoring Performance in Sport and Physical Activities.
JEPonline 2013; 16 (3): 103-131. The dynamic autonomic responses during exercise can be …

This review examines the influence on heart rate variability (HRV) indices in athletes from
training status, different types of exercise training, sex and ageing, presented from both …

Heart rate variability reflects fluctuations in the changes in consecutive heartbeats, providing
insight into cardiac autonomic function and overall physiological state. Endurance athletes …

Background Regular exercise promotes functional and structural changes in the central and
peripheral mechanisms of the cardiovascular system. Heart rate variability (HRV) …

The present study examined the autonomic cardiac modulation of veteran athletes by the
use of traditional and modern methods of heart rate variability (HRV) analysis. Twenty-nine …

Background: The widespread use of affordable devices with sufficient precision for
measurement of heart rate variability (HRV) might lead to early detection of abnormalities in …

The aim of this study was to evaluate the reproducibility of the heart rate variability threshold
(HRVT) by different HRV indexes and determination criteria. 68 untrained participants, 17 …

The autonomous regulation of heart rate (HR) and its acute and chronic adaptation to
exercise constitutes a classical and important field of cardiovascular research. Since the end …