{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T02:02:42Z","timestamp":1789524162911,"version":"build-2803163510"},"reference-count":18,"publisher":"Korean Society for Bone and Mineral Research","issue":"3","license":[{"start":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T00:00:00Z","timestamp":1788134400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["e-jbm.org"],"crossmark-restriction":true},"short-container-title":["JBM"],"published-print":{"date-parts":[[2026,8,31]]},"abstract":"<jats:p>Background: Adolescence is a critical period for bone mass accrual, and mechanical loading through sport may enhance bone mineral acquisition. Olympic weightlifting provides high-magnitude, weight-bearing stimuli, but evidence in pubertal male athletes remains limited, particularly regarding its associations with endocrine factors related to growth and maturation. Methods: In this cross-sectional study, 47 pubertal boys aged 13 to 15 years were classified into three groups: controls (N=16), non-elite weightlifters (N=16), and elite weightlifters (N=15). Biological maturation was assessed using Tanner staging. Bone mineral density (BMD) and bone mineral content (BMC) were measured by dual energy X-ray absorptiometry (DXA). Serum growth hormone (GH), insulin-like growth factor-1 (IGF-1), IGF binding protein-3 (IGFBP-3), and testosterone concentrations were determined. Annual training exposure (h\/year) was calculated as the total number of hours of structured physical activity performed during the preceding 12 months. Results: Elite weightlifters were taller and had greater training exposure than non-elite weightlifters and controls. BMD and BMC at whole-body and regional skeletal sites were higher in the trained groups, with the highest values generally observed in elite weightlifters. Elite weightlifters also exhibited higher GH, IGF-1, IGFBP-3, and testosterone concentrations than controls. Total lean mass was strongly correlated with total and regional BMD and BMC, while IGF-1, IGFBP-3, and GH were positively associated with several bone outcomes. Conclusions: Pubertal male weightlifters, particularly elite athletes, exhibited greater bone mineral status and a more favorable growth-related hormonal profile than age-matched controls. These findings support a positive association between training status, lean mass, and skeletal health during puberty; however, causal inferences are limited by the cross-sectional design.<\/jats:p>","DOI":"10.11005\/jbm.26.024","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T04:25:12Z","timestamp":1788755112000},"page":"269-277","update-policy":"https:\/\/doi.org\/10.11005\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Olympic Weightlifting Training Status, Bone Health, and Hormonal Profiles in Pubertal Male Weightlifters"],"prefix":"10.11005","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6718-5554","authenticated-orcid":true,"given":"Soufiane","family":"Kaabi","sequence":"first","affiliation":[{"name":"Motion, Equilibrium, Performance and Health Laboratory (MEPS), STAPS Department, University of Pau and Pays de l'Adour, Tarbes, France"},{"name":"Research Laboratory \u201cSport Performance 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France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"4758","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1210\/jcem-73-3-555","type":"journal-article"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1359\/jbmr.1999.14.10.1672","type":"journal-article"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.36.4.250","type":"journal-article"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200636070-00002","type":"journal-article"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1007\/s00198-015-3440-3","type":"journal-article"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.5604\/20831862.1059297","type":"journal-article"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1007\/bf02672512","type":"journal-article"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1007\/s00223-001-0048-8","type":"journal-article"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2004.014431","type":"journal-article"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1007\/s00774-006-0744-6","type":"journal-article"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.metabol.2010.03.001","type":"journal-article"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2013-092952","type":"journal-article"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1210\/jcem.76.6.7684744","type":"journal-article"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1210\/jcem.81.10.8855791","type":"journal-article"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.jocd.2019.07.001","type":"journal-article"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1016\/j.jocd.2020.01.006","type":"journal-article"},{"key":"ref17","volume-title":"","year":"2025","type":"book"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0b013e31819df407","type":"journal-article"}],"container-title":["Journal 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