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Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
Online ISSN 1827-1928
Nakamura F. Y. 1, 2, Pereira L. A. 1, Cal Abad C. C. 1, Kobal R. 1, Kitamura K. 1, Roschel H. 3, Rabelo F. 4, Souza-Junior W. A. 4, Loturco I. 1
1 NAR, Nucleus of High Performance in Sport, São Paulo, SP, Brazil;
2 State University of Londrina, Department of Physical Education, Londrina, PR, Brazil;
3 School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil;
4 Sport Club Corinthians Paulista, Departamento de Futsal, São Paulo, SP, Brazil
AIM: The aim of this study was to compare performance in the Yo-Yo IR1, 20-m sprint, COD test, loaded and unloaded lower-limb muscle power tests (SJ, CMJ and jump squat (JS) tests), as well as resting and exercise HRV parameters in high-level senior professional and U-20 futsal players.
METHODS: All the players (18 senior and 15 U-20 male players) performed the Yo-Yo Intermittent Recovery Test level 1 (Yo-Yo IR1), 20-m sprint, COD test, loaded and unloaded lower-limb power tests (squat jump [SJ], countermovement jump [CMJ] and jump squat [JS] tests), as well as resting and post-exercise log-transformed root-meansquare difference of successive normal RR intervals (lnRMSSD) recording. The t test for independent samples and magnitude-based inference were used to compare the groups.
RESULTS: Seniors were likely to very likely superior than U-20 in the Yo-Yo IR1 (1506.7 ± 287.1 and 1264.0 ± 397.9 m, P < 0.05), and resting (3.43 ± 0.32 and 3.21 ± 0.37 ms) and post-exercise lnRMSSD (2.95 ± 0.39 and 2.48 ± 0.59 ms, P < 0.05). Conversely, U- 20 players performed very likely to almost certainly better than seniors in the relative mean propulsive power (10.39 ± 1.60 and 9.05 ± 1.57 W/kg, P < 0.05), 20 m sprint time (2.92 ± 0.10 and 3.05 ± 0.10 s, P < 0.05) and COD (5.50 ± 0.15 and 5.71 ± 0.22 s, P < 0.05).
CONCLUSION: Findings from this cross-sectional study indicate that long-term exposure to futsal may lead to improvement in the aerobic fitness and cardiac autonomic regulation, while impairing the muscle power and speed performance of players. Future longitudinal studies are necessary to confirm the occurrence of such concurrent training adaptations.