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DENARDI, R. A. The volleyball setter’s decision-making of tipping in the Ecological Dynamics. 2015. 86 f. Tese (Doutorado em Ciências) – Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo. 2015. This study aimed to investigate the volleyball setter’s decision-making of tipping based on spatiotemporal variables involving the interaction between players and their game environment. Twenty volleyball games (10 male and 10 female) of the Paulista championship – division I (2013) were recorded, from which 172 actions of the setters were selected. The actions were 86 tips and 86 sets (control group). Players’ displacements were captured using TACTO software, from the beginning of the pass to the contact of the setter to the ball. Thirty-seven spatiotemporal variables were considered in a MANOVA analysis. They were extracted from the follow measures: (i) distance between the setter and the net; (ii) distance between the setter and the ball; (iii) pass distance; (iv) area between opponents; (v) distance between blockers; (vi) distance between the setter and the blockers; (vii) distance between the blockers and the net. When appropriate it was considered the velocity and variability of these measures. Complementary analysis aimed to understand the tips, comparing its effectiveness, its occurrence in different rally transitions, types of tips and tips according to sex. Results revealed that tips and sets were different according these spatiotemporal variables of the attacking team: initial and final distances between the setter and the net, distance and velocity between the setter and the ball, and pass velocity. Only spatial variables related to the defending team were significant: final area and final distance between the setter and the blockers. In conclusion, spatiotemporal interactions involving the players’ behavior in the game environment were crucial for setter’s decision-making of performing the tip. The relation between the two teams and the importance of their interactions were highlighted also in the two phases of rally transition. Spatial interactions were critical to determine the type of tip. Moreover, interpersonal and extrapersonal interactions influenced this specific setters’ decision.

A decisão da largada do levantador do voleibol na perspectiva de dinâmica ecológica