Original Research ARTICLE
Effects of temporary numerical imbalances on collective exploratory behaviour of young and professional football players
- 1National Institute of Physical Education of Catalonia (INEFC), Spain
- 2Center for Research on Sport, Health and Human Development (CIDESD), Portugal
- 3Faculty of Physical Education, Sport and Health, SS. Cyril and Methodius Seminary, United States
The aim of this study was to explore how the use of temporary numerical imbalances during SSGs affects teams' exploratory behaviours (i.e. variety and quantity of responses given in an ever-changing game context and its rate of change) in different age groups. Two different age groups (under-15 and under-23) of football players participated in the study. For each age group, three teams of five players played 6 small-sided games of 5 minutes’ duration in different conditions: i) numerical balance (GK+4 vs. 4+GK); ii) temporary numerical imbalance, which consisted of a numerical change of teammates and opponents every one minute. Latitude and longitude GPS coordinates were used to determine the positioning-derived variables. The dynamic overlap (i.e. variable that provides information on the average similarity of the game patterns that take place in increasingly larger time intervals) was used to provide information of the rate and breadth of exploratory behaviour. The results revealed that the long-term exploratory breadth increased for the under-23 age group. Non-clear effects were found for the short-term rate of exploration, but with an increasing trend. In the under-15 group, the exploratory behaviour was more likely to increase in the long term. The increase for the short-term rate of exploration was unclear, but it follows an increasing trend. These results suggest that the use of temporary numerical imbalances could offer coaches more dynamic training situations and different adaptive training environments similar to matches.
Keywords: Tactical behavior, Small-sided games, dynamic overlapdynamic overlap, complex systems, state space
Received: 09 Mar 2019;
Accepted: 12 Aug 2019.
Copyright: © 2019 Canton, Torrents, Ric, Gonçalves, Sampaio and Hristovski. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Mr. Albert Canton, National Institute of Physical Education of Catalonia (INEFC), Barcelona, Spain, firstname.lastname@example.org