Ultra-Short-Term and Short-Term Heart Rate Variability Recording during Training Camps and an International Tournament in U-20 National Futsal Players

Yung-Sheng Chen, Filipe Manuel Clemente, Pedro Bezerra and Yu-Xian Lu
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Yung-Sheng Chen: Department of Exercise and Health Sciences, University of Taipei, Taipei 111, Taiwan
Filipe Manuel Clemente: Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
Pedro Bezerra: Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
Yu-Xian Lu: Department of Exercise and Health Sciences, University of Taipei, Taipei 111, Taiwan

IJERPH, 2020, vol. 17, issue 3, 1-12

Abstract: The aim of this study was to examine ultra-short-term and short-term heart rate variability (HRV) in under-20 (U-20) national futsal players during pre-tournament training camps and an official tournament. Fourteen male U-20 national futsal players (age = 18.07 ± 0.73 yrs; height = 169.57 ± 8.40 cm; body weight = 64.51 ± 12.19 kg; body fat = 12.42% ± 3.18%) were recruited to participate in this study. Early morning 10 min resting HRV, Borg CR-10 scale session rating of perceived exertion (sRPE), and general wellness questionnaire were used to evaluate autonomic function, training load, and recovery status, respectively. Log-transformed root mean square of successive normal-to-normal interval differences (LnRMSSD) was used to compare the first 30 s, first 1 min, first 2 min, first 3 min, and first 4 min with standard 5 min LnRMSSD. Mean (LnRMSSD mean ) and coefficient of variation (LnRMSSD cv ) of LnRMSSD were used to compare the different time segments of HRV analysis. The result of LnRMSSD mean showed nearly perfect reliability and relatively small bias in all comparisons. In contrast, LnRMSSD cv showed nearly perfect reliability and relatively small bias from 2-4 min time segments in all study periods. In conclusion, for accuracy of HRV measures, 30 s or 1 min ultra-short-term record of LnRMSSD mean and short-term record of LnRMSSD cv of at least 2 min during the training camps are recommended in U-20 national futsal players.

Keywords: futsal; performance; heart rate variability; training load; general wellness; autonomic function (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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