TITLE:
Interpersonal Angular Relations between Players Constrain Decision-Making on the Passing Velocity in Futsal
AUTHORS:
Umberto Cesar Corrêa, Luis Vilar, Keith Davids, Ian Renshaw
KEYWORDS:
Ecological Dynamic, Informational Variable, Team Sports, Motor Skill
JOURNAL NAME:
Advances in Physical Education,
Vol.4 No.2,
May
15,
2014
ABSTRACT:
The aim of this
study was to investigate the influence of interpersonal interactions between
players on the regulation of ball passing velocity in the team sport of futsal.
For this purpose 28 sequences of play, in which passes were performed between
outfield players, were selected from an elite futsal competition and analyzed
using TACTO software. Relative angles between attackers and defenders were used
to examine interpersonal coordination tendencies that emerged during
performance. Results showed that ball passing velocity was constrained by the
rate of change of the angle created by the following vectors: “ball
carrier-ball receiver” and “ball carrier-ball receiver’s nearest defender”.
Passing velocity remained the same when that angular value remained within a
critical threshold range between ?18.16°/s to 11.26°/s. Beyond those
critical threshold values, angular relations between participants seemed to
enter into a new critical state requiring the emergence of a new passing
velocity for performance success. The findings of
this study allowed us to conclude that passing velocity during competitive
performance in futsal was regulated by the rate of change of an angle
established by the interaction between the ball carrier to ball receiver vector
with the ball carrier to ball receiver’s nearest defender vector.