TY  - JOUR
AU  - Moura, Felipe A.
A2  - Moura, Felipe A.
A2  - Martins, Luiz Eduardo Barreto
A2  - Anido, Ricardo
A2  - Ruffino, Paulo Régis C.
A2  - Barros, Ricardo M.L.
A2  - Cunha, Sergio A.
DB  - BISp
DP  - BISp
KW  - Analyse
KW  - Analyse, statistische
KW  - Brasilien
KW  - Distanz
KW  - Fußballspiel
KW  - Mannschaftsspiel
KW  - Mannschaftssport
KW  - Meisterschaft, nationale
KW  - Spielfeld
KW  - Sportspiel
KW  - Sportspielforschung
KW  - Sportwissenschaft
KW  - Wettkampfanalyse
KW  - Wettkampfdistanz
LA  - eng
TI  - A spectral analysis of team dynamics and tactics in Brazilian football
TT  - Eine Spektralanalyse der Mannschaftsdynamik und Taktik im brasilianischen Fußball
PY  - 2013
N2  - The purposes of this study were to characterise the total space covered and the distances between players within teams over ten Brazilian First Division Championship matches. Filmed recordings, combined with a tracking system, were used to obtain the trajectories of the players (n = 277), before and after half-time. The team surface area (the area of the convex hull formed by the positions of the players) and spread (the Frobenius norm of the distance-between-player matrix) were calculated as functions of time. A Fast Fourier Transform (FFT) was applied to each time series. The median frequency was then calculated. The results of the surface area time series median frequencies for the first half (0.63 ± 0.10 cycles · min−1) were significantly greater (P < 0.01) than the second-half values (0.47 ± 0.14 cycles · min−1). Similarly, the spread variable median frequencies for the first half (0.60 ± 0.14 cycles · min−1) were significantly greater (P < 0.01) than the second-half values (0.46 ± 0.16 cycles · min−1). The median frequencies allowed the characterisation of the time series oscillations that represent the speed at which players distribute and then compact their team formation during a match. This analysis can provide insights that allow coaches to better control the team organisation on the pitch. Verf.-Referat
L2  - https://dx.doi.org/10.1080/02640414.2013.789920
DO  - 10.1080/02640414.2013.789920
SP  - S. 1568-1577
SN  - 0264-0414
JO  - Journal of sports sciences
IS  - 14
VL  - 31
M3  - Gedruckte Ressource
ID  - PU201312008813
ER  -