Determinação do tempo de inatividade pós-aquecimento de jogadores reservas em jogos de basquetebol

In basketball, substitute athletes who enter the match only in the second quarter of the game (Q2) remain inactive for a long, but not objectively known period of time. The objective of this paper is to determine a professional basketball first quarter (Q1) elapsed time, the time-interval from the end of warming-up period to the start of the game (AQ-IP), and to the start of the second quarter (AQ-Q1), considering different tournament and competition phases. The sample was composed by 126 matches of four tournaments: Novo BasqueteBrasil (NBB 2011/2012), American Cup 2017, Eurobasket 2017 e Afrobasket 2017. Statistical analysis determined percentiles for each variable, comparing among tournaments and between competition phases (regular season vs. playoff). The results shows that Mean±standard-deviation(median) of Q1, AQ-IP and AQ-Q1 (min:s) were 17:47±02:08 (14:44), 02:05±00:36 (02:08) e 20:16±02:08 (20:23), respectively. Afrobasket games’ Q1 were longer than NBB’s (p<0.05), although no difference between regular season and playoffs were found. We can conclude that a non-starter basketball player that checks in only at Q2 remains seated on bench longer than 20 min, regardless of the competition phase. National African teams’ Q1 matches are more interrupted than Brazilian teams’.