title: Analysis of the distance covered by Brazilian professional futsal players during official matches.
abstract: The purpose of this study was to measure and characterise the distances covered by Brazilian professional futsal players. The trajectories of 93 players during five matches were obtained using an automatic tracking method. The distances covered were analysed for different game conditions: over the entire game and during the times when the ball was out of play and in play separately. When the entire game was considered, the results showed that there was a reduction in the total distance covered per minute from the first [median ± IQR (interquartile range): 97.9 ± 16.2 m/min] to the second half (median = 90.3 m/min; IQR = 12.0), and when only the in-play time was considered (first half: 136.6 ± 17.2 m/min; second half: 129.2 ± 16.7 m/min). The percentage of distance covered in the standing and walking velocity range was higher in the second half than in the first when considering the entire game (30.8% and 28.0%, respectively) and during the in-play time (19.3% and 16.2%, respectively). In conclusion, this study verified that futsal players reduced the physical performance during the second half.
authors.affiliation: a Laboratory of Applied Biomechanics , State University of Londrina , Londrina , Brazil.
authors.forename: Murilo José
authors.initials: MJ
authors.lastname: De Oliveira Bueno
authors.forename: Fabio Giuliano
authors.initials: FG
authors.lastname: Caetano
authors.forename: Tiago Julio Costa
authors.initials: TJ
authors.lastname: Pereira
authors.forename: Nicolau Melo
authors.initials: NM
authors.lastname: De Souza
authors.forename: Gustavo Damasceno
authors.initials: GD
authors.lastname: Moreira
authors.forename: Fábio Yuzo
authors.initials: FY
authors.lastname: Nakamura
authors.forename: Sergio Augusto
authors.initials: SA
authors.lastname: Cunha
authors.forename: Felipe Arruda
authors.initials: FA
authors.lastname: Moura
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D001696:Biomechanical Phenomena / Q000502:physiology; D001938:Brazil; D003430:Cross-Sectional Studies; D006801:Humans; D012420:Running / Q000502:physiology*; D012916:Soccer / Q000502:physiology*; D013996:Time and Motion Studies; D016138:Walking / Q000502:physiology; D055815:Young Adult
keywords: Kinematics; activity profile; automatic tracking; in-play time; out-of-play time