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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Futsal Match-Related Fatigue Affects Running Performance and Neuromuscular Parameters but Not Finishing Kick Speed or Accuracy

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Author(s):
Milioni, Fabio ; Vieira, Luiz H. P. ; Barbieri, Ricardo A. ; Zagatto, Alessandro M. ; Nordsborg, Nikolai B. ; Barbieri, Fabio A. ; dos-Santos, JolioW. ; Santiago, Paulo R. P. ; Papoti, Marcelo
Total Authors: 9
Document type: Journal article
Source: FRONTIERS IN PHYSIOLOGY; v. 7, NOV 7 2016.
Web of Science Citations: 3
Abstract

Purpose: The aim of the present study was to investigate the influence of futsal match-related fatigue on running performance, neuromuscular variables, and finishing kick speed and accuracy. Methods: Ten professional futsal players participated in the study (age: 22.2 +/- 2.5 years) and initially performed an incremental protocol to determine maximum oxygen uptake (VO2max: 50.6 +/- 4.9 mL.kg(-1).min(-1)). Next, simulated games were performed, in four periods of 10 min during which heart rate and blood lactate concentration were monitored. The entire games were video recorded for subsequent automatic tracking. Before and immediately after the simulated game, neuromuscular function was measured by maximal isometric force of knee extension, voluntary activation using twitch interpolation technique, and electromyographic activity. Before, at half time, and immediately after the simulated game, the athletes also performed a set of finishing kicks for ball speed and accuracy measurements. Results:Total distance covered (1st half: 1986.6 +/- 74.4 m; 2nd half: 1856.0 +/- 129.7 m, P = 0.00) and distance covered per minute (1st half: 103.2 +/- 4.4 m.min(-1); 2nd half: 96.4 7.5 m.min(-1), P = 0.00) demonstrated significant declines during the simulated game, as well as maximal isometric force of knee extension (Before: 840.2 +/- 66.2 N; After: 751.6 +/- 114.3 N, P = 0.04) and voluntary activation (Before: 85.9 +/- 7.5%; After: 74.1 +/- 12.3%, P = 0.04), however ball speed and accuracy during the finishing kicks were not significantly affected. Conclusion: Therefore, we conclude that despite the decline in running performance and neuromuscular variables presenting an important manifestation of central fatigue, this condition apparently does not affect the speed and accuracy of finishing kicks. (AU)

FAPESP's process: 13/08302-6 - Changes in kicks performance associated with patterns of displacements during futsal matches
Grantee:Luiz Henrique Palucci Vieira
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 16/02683-6 - Influence of beta-alanine supplementation associated with high-intensity interval training on performance of repeated sprints.
Grantee:Fabio Milioni
Support type: Scholarships in Brazil - Doctorate