@article{uneatlantico537,
            year = {2019},
          author = {Javier Sanchez-Sanchez and Mario Sanchez and Daniel Hern{\'a}ndez and Oliver Gonzalo-Skok and David Casamichana Gomez and Rodrigo Ramirez-Campillo and Fabio Y. Nakamura},
          volume = {67},
         journal = {Journal of Human Kinetics},
           title = {Physical Performance During Soccer-7 Competition and Small-Sided Games in U12 Players},
           pages = {281--290},
          number = {1},
        keywords = {match analysis; youth athletes; game-based training.},
        abstract = {The aim of this study was to compare the activity profile (external loads) during soccer-7 competition versus 6 vs 6 small-sided games ( SSGs) in U12 players. Peak velocity (Vmax), total distance completed (DT), total distance relative to match duration, the percentage of DT in acceleration (\%DAC) and in deceleration (\%DEA), and the percentage of DT at different speeds were recorded. Six types of SSGs were randomly implemented: without pitch orientation-delimitation and with a limit of three ball-contacts per player (3TOU), with no limit of ball-contacts (MAN), with a greater number of players as internal-offensive wildcard players (2WI) or external-offensive wildcard players (4WE); and with pitch orientation-delimitation and crossing the rival goal-line while dribbling the ball without goalkeepers (INV) or using official goalkeepers (GKP). The physical demands of SSGs were compared with the average of two soccer-7 match plays. During soccer-7 match plays a lower \%DAC and \%DEA (p {\ensuremath{<}} 0.05) were observed compared to 2WI, 4WE, INV and GKP, and to INV and GKP, respectively. The Vmax and \%HI were greater (p {\ensuremath{<}} 0.05) in soccer-7 match plays compared to all SSGs. In conclusion, the demands imposed on U12 players during different formats of SSGs differ from the soccer-7 match play demands, presenting a low stimulation of the actions performed at high-speed and an adequate simulation of acceleration-deceleration actions},
             url = {http://repositorio.uneatlantico.es/id/eprint/537/}
}