Differences in U14 football players’ performance between different small-sided conditioned games Diferencias en el rendimiento de los jugadores de fútbol sub14 entre los diferentes variantes y condiciones en juegos con espacios reducidos

T e aim of t is stud as to determine t e effects of different formats and task conditions in small sided con h h y w h ditioned ames G on oun soccer pla ers’ eart rate responses and time motion profiles. Ten oun g (SSC ) y g y h y g male soccer pla ers a e .6 ± 0.8 ears old and ears of practice ± . from a re ional lea ue ere y ( g : 14 y ; y : 4 1 2) g g w tested. Eac pla er pla ed in t o different formats namel ersus it anot er neutral pla er i.e. h y y w y 1 v 1 w h h 1 y ( , 1v1+1 and ersus it anot er neutral pla er i.e. ) 2 v 2 w h h 1 y ( , 2v2+1 and t ree task conditions T no oal T ), h ( 1 – g , 2 no oal ut endline T oal. Eac G lasted for minutes it minutes of passi e reco er et een – g b , 3 – g h SSC 3 w h 3 v v y b w G. T e eart rate responses distance co era e speed and acceleration ere recorded t rou out all SSC h h , v g , w h gh G. Results s o t at t e format SSC h w h h (F 5 0 (4, 4 3) 509.0 5 = 2 ; p-value 0.00 = 1; n 2 p 0. 7 = 2 4; Power .000 = 1 ; moderate effect size and task conditions ) (F 8 0808 ( ,1 ) .7 = 33 14; p-value 0.00 = 1; n 2 p 0.0 = 24; Power .000 = 1 ; small effect size ere ot si nificant factors on performance aria les. T e different formats and task condi ) w b h g v b h tions used in t is stud ena le coac es to carr out a more specific trainin elpin t em to understand t e h y b h y g, h g h h real effects of eac aria le on pla ers’ performance. h v b y