Cardiac parasympathetic activity may be non-invasively investigated using heart rate
variability (HRV), although HRV is not widely accepted to reflect sympathetic activity …

Endurance training decreases resting and submaximal heart rate, while maximum heart rate
may decrease slightly or remain unchanged after training. The effect of endurance training …

Repeated supramaximal exercise training is an efficient means of improving both aerobic
and anaerobic energy system capacities. However, the influence of different levels of …

In both physiologic and pathological conditions, instantaneous heart rate value is the result
of a rather complex interplay. It constantly varies under the influence of a number of factors …

Abstract Background and Objectives Professionals in the domain of swimming have a strong
interest in implementing research methods in evaluating and improving training methods to …

This study tested the hypothesis that athletes participating in intermittent sports would exhibit
a faster heart rate recovery (HRR) during the initial phase (< 30 s) following maximal …

The aim of the present study was to determine whether differences in age-related heart rate
recovery (HRR) kinetics were associated with differences in power output, blood lactate …

The current research aims to study the relative indicators and predictive ability of some
biological variables for the cardiac neural activity of volleyball players. The researchers used …

Objective Exercise has widely documented cardioprotective effects, but the mechanisms
underlying these effects are not entirely known. Previously, we demonstrated that aerobic …

Ultra Short-Term Heart Rate Recovery after Maximal Exercise: Relations to Aerobic Power in
Sportsmen Page 1 Corresponding author: Assoc. Prof. Sergej M. Ostojic, MD, MSc, Ph.D …