Int J Sports Med 2013; 34(05): 424-430
DOI: 10.1055/s-0032-1323720
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Seasonal Changes in Physical Performance and Heart Rate Variability in High Level Futsal Players

R. S. Oliveira
1   MSc in Physical Education UEL-UEM, Universidade Estadual de Londrina, Londrina, Brazil
,
A. S. Leicht
2   Institute of Sport and Exercise Science, James Cook University, Townsville, Australia
,
D. Bishop
3   Institute of Sport, Exercise and Active Living. School of Sport and Exercise Science, Victoria University, Melbourne, Australia
,
J. C. Barbero-Álvarez
4   Departamento de Educación Física y Deportiva, Universidad de Granada, Melilla, Spain
,
F. Y. Nakamura
5   Departamento de Educação Física, Universidade Estadual de Londrina, Londrina, Brazil
› Author Affiliations
Further Information

Publication History



accepted after revision 19 July 2012

Publication Date:
09 November 2012 (online)

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Abstract

The aim of this study was to determine the changes in physical performance and resting heart rate variability (HRV) in professional futsal players during the pre-season and in-season training periods. 11 athletes took part in the study (age=24.3±2.9 years; height=176.3±5.2 cm; weight=76.1±6.3 kg), and performed a repeated-sprint ability (RSA) test [6×40 m (20+20 m with a 180° change of direction) sprints separated by 20 s of passive recovery] and Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1) at 3 different moments (M1=beginning of pre-season; M2=end of pre-season; M3=mid in-season). The HRV indices were assessed at the same moments. After the short pre-season (3-week), mean RSA time (RSAmean) (M1=7.43±0.2 s; M2=7.24±0.2 s; P=0.003), decrement in RSA performance (RSAdecrement) (M1=6.7±0.3%; M2=5.0±0.9%; P=0.001), and Yo-Yo IR1 distance (M1=1.244±298 m; M2=1.491±396 m; P=0.002) were significantly improved (P<0.05). During the in-season (i. e., M3), performance in Yo-Yo IR1 and RSAmean were maintained. In contrast, RSAbest (M2=6.89±0.2 to M3=6.69±0.3; P=0.001) was improved and RSAdecrement (M2=5.0±0.9% to M3=6.6±0.9%; P=0.001) was impaired. At M2, there was an increase in HRV vagal-related indices compared with M1 that was maintained at M3. In conclusion, after a short pre-season, futsal players improved their RSA and Yo-Yo IR1 performance with concomitant improvements in HRV. These indices were maintained during the in-season period while RSAbest was improved and RSAdecrement impaired. Frequent monitoring of these performances and HRV indices may assist with identification of individual training adaptations and/or early signs of maladaption.