RT info:eu-repo/semantics/article T1 The influence of offside rule and pitch sizes on the youth soccer players’ small-sided games external loads A1 Castillo Alvira, Daniel A1 Raya-González, Javier A1 Clemente, Filipe Manuel A1 Yanci, Javier A1 Castillo, Daniel A1 Manuel Clemente, Filipe K1 small-sided games K1 rules K1 physical responses K1 playing area K1 soccer AB The aim was to analyse the influence of the offside rule and pitch sizes on the external loads encountered by young soccer players during small-sided games (SSGs). Twenty-four U12 soccer players belonged to the same Spanish Performance Soccer Academy participated in the study. Each player participated in six different SSGs attending to the offside rule (i.e., offside not applicable [NOS] and with offside [WOS]) and the pitch sizes (i.e., individual interaction space [IIS] of 25, 50 and 75 m2 per player). The obtained dataincluded measures of external loads by global positioning systems. Players covered higher total distance and greater distances at jogging (8–12.9 km·h−1), cruising (13.0–16.0 km·h−1) and sprinting (>16.0 km·h−1) in NOS75 and WOS75 SSGs (p < 0.01; d = 0.65–6.60). Besides, in the NOS75 SSG, the total distance and the distance at cruising were higher in respect to WOS75 (p < 0.01; d = 0.63–0.82). In addition, players performed lower sprints (p < 0.01; d = 1.17–1.71) and achieved lower Vmax (p > 0.05; d = 1.10–1.88) during NOS25 and WOS25 SSGs. These findings could provide relevant information for coaches in order to apply different pitch sizes and the inclusion/absence of the offside rule throughout the microcycle. PB Universidad de Valladolid. Facultad de Educación. SN 1543-8627 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/80774 UL https://uvadoc.uva.es/handle/10324/80774 LA eng NO Research in Sports Medicine, 2020, 28, 3, 324-338 NO Producción Científica DS UVaDOC RD 11-ene-2026