Do heart rate variability is relationed to endurance performance in female futsal players?

Julio Cesar Barbosa De Lima Pinto,Daniel Gomes Da Silva Machado,Radamés Maciel Vitor Medeiros,Fábio Yuzo Nakamura,Leonardo De Sousa Fortes,André Igor Fonteles,Arnaldo Luis Mortatti

doi:10.1590/1980-0037.2021v23e73799

Abstract

abstract The study aimed to verify the correlation between resting heart rate variability (HRVrest) and endurance performance in female futsal players, as well as to evaluate the reliability of this parasympathetic autonomic marker. A total of 16 female futsal players (age: 22 ± 3 years; VO2max: 42.3 ± 2.0 ml.kg-1.min-1) were evaluated during the first week of preseason training. Vagal modulation was evaluated from the HRVrest (i.e., log-transformed root mean square of successive R-R interval differences - Ln-RMSSD) for two consecutive days, while endurance performance was evaluated by the Yo-Yo Intermittent Recovery Test, Level 1 (Yo-Yo IR1). Pearson correlation was used to analyze the relationship between the variables. Strong correlation between the HRVrest index and endurance performance (r = 0.643; p = 0.007). Reliability was tested through the intraclass correlation coefficient, coefficient of variation (CV), and Bland-Altman analysis of the agreement. Furthermore, acceptable repeatability of HRVrest, but with great inter-subject variability (ICC = 0.670, 95%CI = 0.056-0.885, CV = 15.8%). The current study demonstrated a strong correlation between Ln-RMSSD and endurance performance, and despite the acceptable values of intrasubject reliability, HRVrest presented high inter-individual variability in female futsal players.

Highlights

Futsal is an intermittent sport that involves high-intensity activities, such as accelerations, decelerations, and changes of direction, mobilizing the aerobic and anaerobic energetic systems[1]
Physiological adaptations have been monitored through autonomic nervous system (ANS) responses, analyzed from heart rate variability (HRV), which can provide useful information regarding changes in training status[3]
Buchheit recently suggested that HRV indices, used as an indicator of the athletes’ training status, may be more sensitive to changes in training loads[3]

Summary

Introduction

Futsal is an intermittent sport that involves high-intensity activities, such as accelerations, decelerations, and changes of direction, mobilizing the aerobic and anaerobic energetic systems[1]. Monitoring fitness changes in futsal players provides valuable information on physical and physiological adaptations to training[2]. Physiological adaptations have been monitored through autonomic nervous system (ANS) responses, analyzed from heart rate variability (HRV), which can provide useful information regarding changes in training status[3]. HRV is sensitive to changes in training loads[4]. Buchheit recently suggested that HRV indices, used as an indicator of the athletes’ training status, may be more sensitive to changes in training loads[3]. Monitoring individual HRV responses is suggested since large inter-individual variations may exist in response to futsal training[6] and monitoring fitness changes of futsal players provides valuable information about the physical and physiological adaptations to training[2]

Methods

Results

Conclusion