{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T12:56:07Z","timestamp":1775048167362,"version":"3.50.1"},"reference-count":52,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2024,2,22]],"date-time":"2024-02-22T00:00:00Z","timestamp":1708560000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID04045\/2020"],"award-info":[{"award-number":["UID04045\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Sports Science &amp; Coaching"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p> Monitoring of training tasks allows coaches to have a better knowledge of the loads applied to their players. <\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p> The aim of this study was to analyze the variations in external load in small-sided games (SSGs) with young players U-12, U-15, and U-23 and compare the external load between age categories in each of the SSGs. <\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p> A group of 24 male soccer players performed five consecutive different formats of four vs. four SSGs composed of 3\u2005minutes of play\/rest. GPS devices were used during the tasks (WIMU PRO\u2122). The data were analyzed using IBM SPSS Statistics 28.0, using descriptive statistics, graphical statistics, and ANOVA to compare the results between SSGs and between age groups. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p> The increase in field areas promotes the increase of distance (DIST) covered and the high metabolic load distance (HMLd), with and without a goalkeeper (GK). The SSGs with GK recorded fewer PL values compared to SSGs without GK. In the U-12 and U-15 age groups, GK use promotes more acceleration (AC) and deceleration (DEC) of high intensity (&gt;3 m\/s<jats:sup>2<\/jats:sup>). The results also show that the larger areas are promoters of high-speed running (HSR). Age influences some external load variables (DIST, AC, DEC, HMLd) in the game formats studied. <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p> The SSG formats analyzed using GK are promoters of high-intensity neuromuscular activity. Larger areas promote more high-speed displacement. Age is an influence on the external load in different SSGs. <\/jats:p><\/jats:sec>","DOI":"10.1177\/17479541241231485","type":"journal-article","created":{"date-parts":[[2024,2,23]],"date-time":"2024-02-23T00:56:20Z","timestamp":1708649780000},"page":"2024-2034","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":16,"title":["External load of different format small-sided games in youth football players in relation to age"],"prefix":"10.1177","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1356-7853","authenticated-orcid":false,"given":"Fernando","family":"Santos","sequence":"first","affiliation":[{"name":"Escola Superior de Educa\u00e7\u00e3o, Instituto Polit\u00e9cnico de Set\u00fabal, Set\u00fabal, Portugal"},{"name":"Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, \rPortugal"},{"name":"Life Quality Research Center(CIEQV-IPSet\u00fabal), Rio Maior, Portugal"}]},{"given":"Filipe Manuel","family":"Clemente","sequence":"additional","affiliation":[{"name":"Escola Superior de Desporto e Lazer, Instituto Polit\u00e9cnico de Viana do Castelo, Viana do Castelo, Portugal"},{"name":"Department of Biomechanics and Sport Engineering, Gdansk University of Physical Education and Sport, Gdansk, Poland"},{"name":"Sport Physical Activity and Health Research & Innovation Center, Viana do Castelo, Portugal"}]},{"given":"Hugo","family":"Sarmento","sequence":"additional","affiliation":[{"name":"University of Coimbra, Coimbra, Portugal University of Coimbra, Research Unit for Sport and Physical Activity (CIDAF). Faculty of Sport Sciences and Physical Education, Coimbra, Portugal"}]},{"given":"C\u00e1tia","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Escola Superior de Educa\u00e7\u00e3o, Instituto Polit\u00e9cnico de Set\u00fabal, Set\u00fabal, Portugal"},{"name":"Training Optimization and Sports Performance Research Group, C\u00e1ceres, Spain"},{"name":"Sport Physical activity and health Research & Innovation Center, Rio Maior, Portugal"}]},{"given":"Teresa","family":"Figueiredo","sequence":"additional","affiliation":[{"name":"Escola Superior de Educa\u00e7\u00e3o, Instituto Polit\u00e9cnico de Set\u00fabal, Set\u00fabal, Portugal"},{"name":"Life Quality Research Center(CIEQV-IPSet\u00fabal), Rio Maior, Portugal"},{"name":"Sport Physical activity and health Research & Innovation Center, Rio Maior, Portugal"}]},{"given":"Victor","family":"Hern\u00e1ndez-Beltr\u00e1n","sequence":"additional","affiliation":[{"name":"Training Optimization and Sports Performance Research 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