Heart rate variability (HRV) is a relevant marker reflecting cardiac modulation by sympathetic
and vagal components of the autonomic nervous system (ANS). Although the clinical …

Background: Although Yo-Yo intermittent tests are frequently used in a variety of sports and
research studies to determine physical fitness, no structured reference exists for comparison …

A comprehensive monitoring of fitness, fatigue, and performance is crucial for understanding
an athlete's individual responses to training to optimize the scheduling of training and …

Purpose: Road cycling is a sport with extreme physiological demands. Therefore, there is a
need to find new strategies to improve performance. Heart-rate variability (HRV) has been …

Objectives The purpose of this study was to evaluate cardiac-parasympathetic and
psychometric responses to competition preparation in collegiate sprint-swimmers …

BACKGROUND: Heart rate variability (HRV) is an objective physiological marker that may
be useful for monitoring training status in athletes. However, research aiming to interpret …

Abstract Flatt, AA, Esco, MR, and Nakamura, FY. Individual heart rate variability responses to
preseason training in high level female soccer players. J Strength Cond Res 31 (2): 531 …

The aims of the present study were to (a) examine recovery time-course and (b) analyze the
usefulness of the Hooper-Index (wellness index) and resting heart rate variability (HRV) in …

Abstract Javaloyes, A, Sarabia, JM, Lamberts, RP, Plews, D, and Moya-Ramon, M. Training
prescription guided by heart rate variability vs. block periodization in well-trained cyclists. J …

Purpose The primary purpose of this study was to determine the accuracy of the standard
deviation of normal-to-normal intervals (SDNN) to root mean square of successive normal-to …