000153067 001__ 153067 000153067 005__ 20251017144551.0 000153067 0247_ $$2doi$$a10.5114/biolsport.2025.145917 000153067 0248_ $$2sideral$$a143597 000153067 037__ $$aART-2025-143597 000153067 041__ $$aeng 000153067 100__ $$aGomes, Leandro Lume 000153067 245__ $$aAnalysis of the effects of manipulating the space and number of players in small-sided games on the external load demands of futsal athletes in different age categories 000153067 260__ $$c2025 000153067 5060_ $$aAccess copy available to the general public$$fUnrestricted 000153067 5203_ $$aThe study aim was to analyse the effects of manipulating the space and number of players in small-sided games on the external load demands of futsal athletes of different age categories. Fifty-six male futsal players from U15, U17, U19, and adult age categories participated. The study lasted 7 weeks. The first week was for familiarization and evaluations to characterize the sample. In the six subsequent weeks there were six futsal tasks T1 (GK + 2×2 + GK, 20×20 m), T2 (GK + 2×2 + GK, 40×20 m), T3 (GK + 3×3 + GK, 20×20 m), T4 (GK + 3×3 + GK, 40×20 m), T5 (GK + 4×4 + GK, 20×20 m), and T6 (GK + 4×4 + GK, 40×20 m). The external load variables were measured with an inertial measurement unit (IMU), and kinematic (total and relative distance) and mechanical (total distance at high intensity accelerations and decelerations) data were extracted. T2 (133 m2) showed higher values for total distance covered (1248.0±97.6 m) and distances covered at speeds between 12.1 and 18 km/h (407.8±44.7 m) and greater than 18.1 km/h (115.2±28.9 m) compared to T5 (40 m2) and T6 (80 m2). In addition, we observed greater variability in high-intensity accelerations and high intensity decelerations, suggesting that regardless of field size and number of players, relative area might not play as crucial a role in this dimension. 000153067 536__ $$9info:eu-repo/grantAgreement/ES/UZ/JIUZ-2023-CSJ-02 000153067 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es 000153067 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000153067 700__ $$aGomes, Sérgio Adriano 000153067 700__ $$aTravassos, Bruno 000153067 700__ $$aRibeiro, João Nuno 000153067 700__ $$0(orcid)0000-0002-0541-2050$$aAsín-Izquierdo, Iván$$uUniversidad de Zaragoza 000153067 700__ $$aCastro, Henrique de Oliveira 000153067 700__ $$aFerreira, Carlos Ernesto Santos 000153067 7102_ $$13001$$2187$$aUniversidad de Zaragoza$$bDpto. Expres.Music.Plást.Corp.$$cÁrea Didáctica Expres.Corporal 000153067 773__ $$g42, 3 (2025), 29-36$$pBiol. Sport$$tBIOLOGY OF SPORT$$x0860-021X 000153067 8564_ $$s927064$$uhttps://zaguan.unizar.es/record/153067/files/texto_completo.pdf$$yVersión publicada 000153067 8564_ $$s2892852$$uhttps://zaguan.unizar.es/record/153067/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000153067 909CO $$ooai:zaguan.unizar.es:153067$$particulos$$pdriver 000153067 951__ $$a2025-10-17-14:11:56 000153067 980__ $$aARTICLE