uncovering relevant information guiding sports performance
DESCRIPTION
Lecture @ Physical Education Academy, Katowice, Poland, 2014TRANSCRIPT
Uncovering relevant informa0on guiding sports performance
Pedro Tiago Esteves 2014
Aim
To show which informa0on may be guiding goal-‐directed behaviours in different sport contexts of performance.
Individual (animal) goal-‐directed ac0ons
Individual (animal) goal-‐directed ac0ons
Collec0ve (animal) goal-‐directed ac0ons
Individual (human) goal-‐directed ac0ons
Individual (human) goal-‐directed ac0ons
Collec0ve (human) goal-‐directed ac0ons
Collec0ve (human) goal-‐directed ac0ons
How to explain human goal-‐directed behaviour?
XVII
Inate valoriza0on
XX
Behaviorism Cogni0vism
Adams (1971)
Gibson (1966)
Schmidt (1975)
Bernstein (1967)
Models explaining human behaviour
Ecological Psychology Informa2on-‐Processing Theory
“Egocentrism” Richardson et al. (2008)
Models explaining human behaviour
Models explaining human behaviour
(Schmidt & Wrisberg, 2000) Informa0on Processing Model
Ecological niche to collec0ves
Marsh et al. (2008) Ecological Psych
Percep0on-‐ac0on coupling
Richardson et al. (2008) Handbook of cogni2ve science
specification
Op0cal flow
Op0cal flow
Op0cal flow
Dynamics of percep0on-‐ac0on
Warren (2006) Psych Review
Constraints-‐led approach
Newell (1996); Araújo et al. (2004) Ecological Psych
How to explain human goal-‐directed behaviour in sports?
Esteves et al., (2011) Psychology of Sport and Exercise
How does feet posi0on of the defender influences
adacker’s drive in basketball?
Feet posi)on of defender and drive direc)on of the a2acker
1v1 (n=32)
3 condi0ons
2 exper0se groups (novice and intermediate)
Feet posi)on of defender and drive direc)on of the a2acker
i) Iden0fica0on when adacker started a drive to the basket;
ii) Semi-‐manual digi)za)on of adackers and defenders’ feet (WinAnalyze); iii) Interpersonal-‐distance cut-‐off (Mean +/-‐ 1 SD): small and large
Feet posi)on of defender and drive direc)on of the a2acker
Drive direc)on related to the side of most advanced foot
220
230
240
250
260
270
280
290
Novice Intermediate
lemward drives
rightward drives
Posture of defen
der (de
grees)
Feet posi)on of defender and drive direc)on of the a2acker
Intermediate adackers concealed upcoming drive direc)on
220
230
240
250
260
270
280
290
Novice Intermediate
lemward drives
rightward drives
Posture of ada
cker (d
egrees)
Feet posi)on of defender and drive direc)on of the a2acker
Duarte et al., (2010) The Open Sports Science Journal
How does interpersonal distance influences adacker’s
moves in football?
1v1 (n=6)
Under 13 year-‐old
5 trials x 4 interp. dist. (1, 1.5, 2 and 2.5m)
Interpersonal distance and a2acker’s moves
Variables: -‐ Interpersonal distance; -‐ Rela0ve velocity;
i) Manually tracking players with mouse cursor (TACTO);
ii) Somware computes over 0me virtual coordinates
iii) Transforma0on of virtual coordinates to real coordinates;
Interpersonal distance and a2acker’s moves
Rela)ve velocity and interp. dist. related to symmetry-‐breaking
Interpersonal distance and a2acker’s moves
Esteves et al., (submiDed)
How does alignment to defender influences drive direc0on of the adacker?
1v1 (n=4) right-‐handed, novices
3 trials x 9 areas of rela0ve posi0on x 2 sequences
Success of 1v1 from the adackers perspec0ve
Alignment to defender and drive direc)on of the a2acker
i) Manually tracking players with mouse cursor (TACTO);
ii) Somware computes over 0me virtual coordinates;
ii) Virtual coordinates transformed to real coordinates;
Alignment to defender and drive direc)on of the a2acker
Adacker-‐defender-‐basket angle
(ADB)
Alignment to defender and drive direc)on of the a2acker
Alignment to defender and drive direc)on of the a2acker
-‐ Mean ADB;
-‐ Angular Velocity (ADB);
-‐ Success of adacker 1v1;
Variables:
Alignment to defender and drive direc)on of the a2acker
Success: explora0on of lem side, on the center of court, with great angular velocity
Alignment to defender and drive direc)on of the a2acker
Success
Angular velocity ADB angle
Increase of ABD and angular velocity favors symmetry-‐breaking
Alignment to defender and drive direc)on of the a2acker
Failure
Angular velocity ADB angle
Inability of increasing ABD and angular velocity
Alignment to defender and drive direc)on of the a2acker
Spa0al-‐temporal con0nuum
Adacker Defender 1v1
Interpersonal distance
Posture Adacker-‐
defender-‐basket alignment
Angular velocity Rela0ve posi0on to the basket
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