ORIGINAL PAPER
The influence of numerical variability in small-sided games on youth football goalkeepers’ tactical-technical behaviour
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Andreas Ihle 3,7,8
 
 
 
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1
Department of Physical Education and Sport, University of Madeira, 9000-072 Funchal, Portugal
 
2
Laboratory of Robotics and Engineering Systems, Interactive Technologies Institute, Funchal, Portugal
 
3
Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1211 Geneva, Switzerland
 
4
University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, 3004-504 Coimbra, Portugal
 
5
The Interdisciplinary Centre for the Study of Human Performance (CIPER), Faculty of Human Kinetics, University of Lisbon, 1649-004 Lisbon, Portugal
 
6
Instituto de Saúde Ambiental (ISAMB), University of Lisbon, 1649-026 Lisbon, Portugal
 
7
Department of Psychology, University of Geneva, 1211 Geneva, Switzerland
 
8
Swiss National Centre of Competence in Research LIVES–Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
 
 
Submission date: 2021-03-16
 
 
Acceptance date: 2021-10-17
 
 
Publication date: 2022-02-07
 
 
Hum Mov. 2022;23(4):34-43
 
KEYWORDS
TOPICS
ABSTRACT
Purpose:
The main purpose of this study was to investigate changes in the tactical-technical behaviour of football goalkeepers (GKs) across 5 small-sided games (SSGs) formats with temporary numerical variability.

Methods:
The sample involved 4 male under-17 GKs from the same team aged 16.1 ± 0.52 years. Three sessions were held on 3 different days to collect information. On each day, the 10-minute SSGs exercise with temporary numerical variability was repeated twice. The numerical ratio of players changed every 2 minutes without interrupting the practice. The exercise always started with a situation of 3 vs. 3 + GK (‘+ GK’ for both teams in each format), going through 4 vs. 3 + GK, 5 vs. 3 + GK, 3 vs. 4 + GK, and 3 vs. 5 + GK.

Results:
The 3 vs. 3 + GK format and the numeric superiority by 1 and 2 (4 vs. 3 + GK and 5 vs. 3 + GK) induced fewer defensive tasks in comparison with numeric inferiority (3 vs. 4 + GK and 3 vs. 5 + GK). From an offensive perspective, 3 vs. 3 + GK caused more offensive tasks in comparison with numeric superiority by 1 and 2 (4 vs. 3 + GK and 5 vs. 3 + GK). However, the game formats in numeric inferiority (3 vs. 4 + GK and 3 vs. 5 + GK) induced more offensive tasks.

Conclusions:
This study suggests the use of temporary numerical variability SSGs to increase offensive and defensive GK tactical-technical behaviour.

 
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ISSN:1899-1955
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