Regarding the case of SSGs, preliminary studies testing such as hypothesis revealed that aerobic capacity is related with the total amount of distance covered and high-metabolic power distance in 5v5 format. For example, it is observed in official soccer matches that the amount of distance covered, and the distance covered at high intensity are both closely related to good aerobic fitness. One of the questions is related to the relationship with physical fitness and how physical fitness may determine the player’s demands in those games. Ĭonsidering that SSGs are currently used for developing physical fitness, some questions come about their use. Additionally, SSGs are contextual-dependent, which means that the intra-individual variability will be always present, similarly to occurring in official matches. For example, high-speed running or sprinting is scarce to nonexistent in formats such as 5v5 or smaller.
For example, formats of play are closely related to pitch dimensions which makes that some of the smaller formats commonly used are inadequate to sustain high-intensity locomotor demands. Īlthough positive aspects of SSGs, there are also some threats associated with them. In fact, although different from traditional running-based exercises, SSGs can be considered high-intensity interval training since (pending the formats and constraints used) can stress physiological dimensions that are responsible for improving the aerobic power. Although natural differences between SSGs and the official match, some researchers have been pointing out the beneficial effects of these games to improve the aerobic fitness of players. These drill-based games turned popular in daily soccer training practice since allow to provide a physiological and locomotor stimulus while players are involved in tactical/technical challenges that simulate some of the dynamics of the formal match. Small-sided games (SSGs) are formats of play in which coaches adjust the task constraints aiming to fit the player’s responses to specific training objectives. Considering the second purpose of this study, the results suggest that VIFT and ASR are important physical fitness parameters to modulate the amount of distance covered by the players in 5v5, the average pace, and also the distance covered at high intensities. Thus, physiological and locomotor similarities between small-sided games and official matches are scarce. The results suggest that the physiological and locomotor demands occurring in small-sided games are significantly different from those occurring in official matches. However, V IFT and ASR were significantly correlated with distance covered at 5v5 (r = 0.483 p = 0.031 and r = − 0.474 p = 0.035, respectively), average speed (r = 0.474 p = 0.035 and r = − 0.453 p = 0.045, respectively), while VIFT was also significantly correlated with distance covered at Z2 intensity (r = 0.510 p = 0.022). Results revealed no significant correlations (p > 0.05) between small-sided games and match physiological or locomotor demands. Three official matches were also monitored during the period.
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The Polar Team Pro was used as the instrument to monitor heart rate and locomotor demands. The heart rate responses and locomotor demands were monitored in the SSGs (3v3 and 5v5) and matches (11v11) occurring once a week. Twenty youth soccer players (age: 16.8 ± 0.41) were tested twice for their final velocity at 30–15 Intermittent Fitness test (V IFT), peak speed attained at 30-m sprint test (peak speed), and anaerobic speed reserve (ASR). In the third week they repeatedly performed the 3v3 (39 × 24 and 32 × 19 m) over four consecutive days. In the first week participants performed the 5v5 (50 × 31 and 40 × 25 m) repeatedly over four days. The observational study lasted three weeks. The purpose of the study was: (i) to analyze the relationships of physiological and locomotor demands between small-sided games (3v3 and 5v5) and official matches (11v11) (ii) to analyze the relationships between small-sided games demands and the physical fitness of youth soccer players.
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