Jong, J.P.J. de (Jan-Paul) (2019) Synchronized velocity of the nearest defenders to the ball during pressing situations enhances successful ball recovery in football. thesis, Sport Sciences.
Full text available on request.Abstract
When a football team does not have ball possession and wants to make a ball recovery, they can decide to either defend their goal or approach the ball possessing opponent. When trying to gain ball possession, defenders coordinate their behaviour to increase the likelihood of regaining possession. Currently, spatiotemporal variables of pressing situations have not been addressed in the literature. Positional data (xy- coordinates of players and the ball) from eleven teams, containing a total of 453 situations in 48 German 1st Bundesliga matches from the 2014/15 season were annotated by 5 experts (kappa = 0.84). Spatiotemporal variables between defenders and the ball were calculated for each situation. Each situation was coded as successful, unsuccessful, or neutral ball recovery. Logistic regression analysis indicated that velocity synchronization of the nearest two defenders during the first second of a pressing situation are related to more successful ball recoveries (χ2 (6) = 14.592, p<0.05, R2 = 0.049). Thus, spatiotemporal arrangement and pressing behaviour of the defenders with respect to the ball provides crucial information to inform decision making in defenders. These results provide insights to improve tactical awareness in players, with respect to their behaviour in initiating successful pressing actions. Results suggest that the initial velocity of the defender(s) could be a determinant for successful pressing. Coaches may use these results to improve tactical behaviour during pressing initiation when designing training exercises in representative task design.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Kempe, dr. M. and Rein, dr. R. and Wunderlich, F. |
| Faculty: | Medical Sciences |
| Date Deposited: | 23 May 2022 08:34 |
| Last Modified: | 23 May 2022 08:34 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3413 |
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