{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T05:00:59Z","timestamp":1784955659335,"version":"3.55.0"},"reference-count":36,"publisher":"Georg Thieme Verlag KG","issue":"02","funder":[{"name":"IdrettCampus Bergen"},{"name":"University and College Network for Western\n                        Norway"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Sports Med"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Biological maturation and growth influence youth athletes\u2019 physical performance\n                    during adolescence. However, how this association develops over time remains\n                    unclear. Thus, this study examined associations between biological maturity and\n                    sprint speed, vertical jumping ability, leg strength, and aerobic capacity\n                    between ages 14.1 and 17.4 in youth male soccer players. A total of 103 players\n                    were followed. Performance in 40-m sprint, countermovement jump (CMJ), leg\n                    press, and maximal oxygen consumption (V\u0307O2max) was tested biannually\n                    at seven time points. Maturity was estimated using bone age from hand-wrist\n                    X-rays. Latent growth modelling examined changes in maturity-performance\n                    associations over time. Maturity was significantly (p &lt; 0.05)\n                    associated with sprint, CMJ, leg strength (force and power), and\n                        V\u0307O2\n               max at ages 14.1, 14.7, and 15.3 years. The\n                    associations were, however, less significant over time. Specifically, maturity\n                    was no longer statistically associated with sprint and CMJ performance at 15.7\n                    years, force and V\u0307O2\n               max at 16.4 years, and power at 16.8\n                    years. There were no significant associations at 17.4 years. Biological maturity\n                    influences physical capacities during early adolescence, but its impact\n                    diminishes as players age. The timing of this decline appears to vary between\n                    physical performance domains, with sprint and jump performance stabilizing\n                    earlier than muscular strength and aerobic capacity.<\/jats:p>","DOI":"10.1055\/a-2675-1198","type":"journal-article","created":{"date-parts":[[2025,8,1]],"date-time":"2025-08-01T23:05:12Z","timestamp":1754089512000},"page":"131-138","source":"Crossref","is-referenced-by-count":8,"title":["The Role of Growth and Maturation in the Physical Development of\n                    Youth Male Soccer Players"],"prefix":"10.1055","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6609-1257","authenticated-orcid":false,"given":"Hilde","family":"Gundersen","sequence":"additional","affiliation":[{"name":"Department of Sport, Food and Natural Sciences, Western\n                    Norway University of Applied Sciences, Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Halvard","family":"Grendstad","sequence":"additional","affiliation":[{"name":"Institute of Physical Performance, Norwegian School of\n                    Sports Sciences, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilie Brekke","family":"Rygh","sequence":"additional","affiliation":[{"name":"Department of Radiology, Haukeland University Hospital,\n                    Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arild","family":"Hafstad","sequence":"additional","affiliation":[{"name":"Department of Sport, Food and Natural Sciences, Western\n                    Norway University of Applied Sciences, Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mona","family":"Vestb\u00f8stad","sequence":"additional","affiliation":[{"name":"Department of Health and Functioning, Western Norway\n                    University of Applied Sciences, Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erling","family":"Alger\u00f8y","sequence":"additional","affiliation":[{"name":"Department of Teacher Education, NLA University College,\n                    Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Otto R. F.","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Teacher Education, NLA University College,\n                    Bergen, Norway"},{"name":"Department of Health Promotion, Norwegian Institute of\n                    Public Health, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malene","family":"Joensen","sequence":"additional","affiliation":[{"name":"Western Norway Cluster of Sports, Western Norway Cluster of Sports,\n                    Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morten","family":"Kristoffersen","sequence":"additional","affiliation":[{"name":"Department of Sport, Food and Natural Sciences, Western\n                    Norway University of Applied Sciences, Bergen, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2025,9,2]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","DOI":"10.5040\/9781492596837","volume-title":"Growth, Maturation, and Physical Activity","author":"R M Malina","year":"2004"},{"issue":"01","key":"ref2","doi-asserted-by":"crossref","first-page":"328","DOI":"10.3390\/ijerph18010328","article-title":"Relationship between Biological Maturation, Physical Fitness, and\n                    Kinanthropometric Variables of Young Athletes: A Systematic Review and\n                    Meta-Analysis","volume":"18","author":"M Albaladejo-Saura","year":"2021","journal-title":"Int J Environ Res Public Health"},{"issue":"02","key":"ref3","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1111\/sms.13572","article-title":"Physical capacity, not skeletal maturity, distinguishes competitive levels in\n                    male Norwegian U14 soccer 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McKinlay","year":"2018","journal-title":"J Strength Cond Res."},{"issue":"06","key":"ref30","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1519\/SSC.0000000000000545","article-title":"Sensitive Periods to Train General Motor Abilities in Children and Adolescents:\n                    Do They Exist? A Critical Appraisal","volume":"42","author":"B Van Hooren","year":"2020","journal-title":"Strength Cond J"},{"issue":"01","key":"ref31","doi-asserted-by":"crossref","first-page":"e70016","DOI":"10.1111\/sms.70016","article-title":"A Prospective Study on Maximal Oxygen Uptake and Cardiovascular Functions in\n                    12-Year-Old Endurance Athletes and Their Non-Endurance-Trained Peers","volume":"35","author":"H Grendstad","year":"2025","journal-title":"Scand J Med Sci Sports."},{"issue":"09","key":"ref32","doi-asserted-by":"crossref","first-page":"1940","DOI":"10.1249\/MSS.0000000000002338","article-title":"Longitudinal Training-related Hematological Changes in Boys and Girls from Ages\n                    12 to 15 yr","volume":"52","author":"H W Landgraff","year":"2020","journal-title":"Med Sci Sports Exerc."},{"issue":"04","key":"ref33","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1123\/pes.2023-0186","article-title":"Normative Reference Centiles for Sprint Performance in High-Level Youth Soccer\n                    Players: The Need to Consider Biological Maturity","volume":"36","author":"L Ruf","year":"2024","journal-title":"Pediatr Exerc Sci."},{"issue":"11\/12","key":"ref34","doi-asserted-by":"crossref","first-page":"1359","DOI":"10.1080\/02640414.2019.1649524","article-title":"Relative age and maturation selection biases in academy football","volume":"38","author":"M Hill","year":"2020","journal-title":"J Sports Sci"},{"issue":"11\/12","key":"ref35","doi-asserted-by":"crossref","first-page":"1199","DOI":"10.1080\/02640414.2020.1766647","article-title":"Talent identification and development in soccer since the millennium","volume":"38","author":"A M Williams","year":"2020","journal-title":"J Sports Sci"},{"issue":"01","key":"ref36","doi-asserted-by":"crossref","first-page":"16705","DOI":"10.1038\/s41598-017-16996-w","article-title":"The Uniform Pattern of Growth and Skeletal Maturation during the Human\n                    Adolescent Growth Spurt","volume":"7","author":"J O Sanders","year":"2017","journal-title":"Sci Rep"}],"container-title":["International Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-2675-1198.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T23:31:15Z","timestamp":1770075075000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-2675-1198"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,1]]},"references-count":36,"journal-issue":{"issue":"02","published-online":{"date-parts":[[2026,2,2]]},"published-print":{"date-parts":[[2026,2]]}},"URL":"https:\/\/doi.org\/10.1055\/a-2675-1198","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["0172-4622","1439-3964"],"issn-type":[{"value":"0172-4622","type":"print"},{"value":"1439-3964","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2025,8,1]]},"published":{"date-parts":[[2025,8,1]]}}}