%0 Journal Article
%T Capturing complex human behaviors in representative sports contexts with a single camera
%J Medicina (Lithuania)
%D 2010
%A Duarte, Ricardo
%A Araújo, Duarte
%A Fernandes, Orlando
%A Fonseca, Cristina
%A Correia, Vanda
%A Gazimba, Vítor
%A Travassos, Bruno
%A Esteves, Pedro
%A Vilar, Luís
%A Lopes, José
%V 46
%N 6
%P 408-414
%X BACKGROUND AND OBJECTIVE: In the last years, several motion analysis methods have been developed without considering representative contexts for sports performance. The purpose of this paper was to explain and underscore a straightforward method to measure human behavior in these contexts. MATERIAL AND METHODS: Procedures combining manual video tracking (with TACTO device) and bidimensional reconstruction (through direct linear transformation) using a single camera were used in order to capture kinematic data required to compute collective variable(s) and control parameter(s). These procedures were applied to a 1vs1 association football [soccer] task as an illustrative subphase of team sports and will be presented in a tutorial fashion. <br><br>RESULTS: Preliminary analysis of distance and velocity data identified a collective variable (difference between the distance of the attacker and the defender to a target defensive area) and two nested control parameters (interpersonal distance and relative velocity). <br><br>CONCLUSIONS: Findings demonstrated that the complementary use of TACTO software and direct linear transformation permit to capture and reconstruct complex human actions in their context in a low dimensional space (information reduction).<p /> <p>Language: en</p>
%G en
%I Lietuvos Gydytoju Sajunga Lithuania
%@ 1010-660X
%U http://dx.doi.org/