BACKGROUND: The aim of this study was to compare performance in the Yo-Yo IR1, 20-meter sprint, COD test, loaded and unloaded lower-limb muscle power tests (squat jump [SJ], countermovement jump [CMJ] and jump squat [JS] tests), as well as resting and exercise heart rate variability parameters in high-level senior professional and under-20 (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 (SJ, CMJ and JS tests), as well as resting and post-exercise log-transformed root-mean-square 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). CONCLUSIONS: 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.
BACKGROUND: The aim of this study was to compare performance in the Yo-Yo IR1, 20-meter sprint, COD test, loaded and unloaded lower-limb muscle power tests (squat jump [SJ], countermovement jump [CMJ] and jump squat [JS] tests), as well as resting and exercise heart rate variability parameters in high-level senior professional and under-20 (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 (SJ, CMJ and JS tests), as well as resting and post-exercise log-transformed root-mean-square 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). CONCLUSIONS: 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.
Authors: Irineu Loturco; Ian Jeffreys; Ronaldo Kobal; César C Cal Abad; Rodrigo Ramirez-Campillo; Vinicius Zanetti; Lucas A Pereira; Fábio Y Nakamura Journal: J Hum Kinet Date: 2018-10-15 Impact factor: 2.193
Authors: Jaime Fernandez-Fernandez; Isidoro Martinez-Martin; Vicente Garcia-Tormo; Juan Garcia-Lopez; Mario Centeno-Esteban; Lucas A Pereira; Irineu Loturco Journal: PLoS One Date: 2020-11-12 Impact factor: 3.240
Authors: Ronaldo Kobal; Lucas A Pereira; Vinicius Zanetti; Rodrigo Ramirez-Campillo; Irineu Loturco Journal: Front Physiol Date: 2017-09-26 Impact factor: 4.566
Authors: Katia Kitamura; Lucas Adriano Pereira; Ronaldo Kobal; Cesar Cavinato Cal Abad; Ronaldo Finotti; Fábio Yuzo Nakamura; Irineu Loturco Journal: Biol Sport Date: 2017-04-06 Impact factor: 2.806