{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T19:09:17Z","timestamp":1788808157168,"version":"build-2803163510"},"reference-count":44,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:00:00Z","timestamp":1787616000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100007465","name":"UiT-The Arctic University of Norway","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100007465","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>BMI is a well-established determinant of bone health; however, most evidence is derived from cross-sectional or short-term studies, providing limited insight into how long-term BMI development influences skeletal maturation. We aimed to investigate the associations between long-term BMI trajectories and skeletal development from adolescence into young adulthood. Data were derived from 1114 participants in the population-based Fit Futures study with repeated measurements (2010-2011 [FF1], 2012-2013 [FF2], and 2021-2022 [FF3]). Group-based trajectory modeling identified 3 BMI trajectories: low-stable, moderate-increasing, and high-stable. Sex-stratified linear mixed-effects models estimated adjusted mean DXA-derived areal BMD (aBMD) and BMC at the total body (TB), TH, and FN. Participants in the moderate-increasing and high-stable trajectories consistently exhibited higher aBMD and BMC than those in the low-stable trajectory across all skeletal sites throughout follow-up. For TB aBMD, compared with the low-stable trajectory, the moderate-increasing trajectory was associated with \u03b2\u2009=\u2009.06\u00a0g\/cm2 (95% CI: 0.05-0.08) in females and \u03b2\u2009=\u2009.08\u00a0g\/cm2 (95% CI: 0.06-0.10) in males, whereas the corresponding estimates for the high-stable trajectory were \u03b2\u2009=\u2009.10\u00a0g\/cm2 (95% CI: 0.07-0.17) and \u03b2\u2009=\u2009.10\u00a0g\/cm2 (95% CI: 0.06-0.15), respectively (all p\u2009&amp;lt;\u2009.001). Despite continued increases in BMI, the moderate-increasing trajectory was not associated with proportionally greater skeletal accrual than the high-stable trajectory, and statistically significant trajectory-by-time interactions were limited to TB outcomes. BMI trajectories established during adolescence were associated with persistent differences in attained skeletal levels rather than differential skeletal accrual into young adulthood. These findings underscore the importance of adolescence as a critical period for the attainment of peak bone mass.<\/jats:p>","DOI":"10.1093\/jbmrpl\/ziag143","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T11:20:45Z","timestamp":1787570445000},"source":"Crossref","is-referenced-by-count":0,"title":["Associations between BMI trajectories and young adult bone: a 10-yr follow-up from the Norwegian Fit Futures cohort"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-2878-5391","authenticated-orcid":false,"given":"Marianne","family":"Lund","sequence":"first","affiliation":[{"name":"Department of Health and Care Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3529-1111","authenticated-orcid":false,"given":"Anja D","family":"Norbye","sequence":"additional","affiliation":[{"name":"Department of Health and Care Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6311-166X","authenticated-orcid":false,"given":"Anne-Sofie","family":"Furberg","sequence":"additional","affiliation":[{"name":"Faculty of Health and Social Sciences, Molde University College , 6410 Molde ,","place":["Norway"]},{"name":"Department of Microbiology and Infection Control, University Hospital of North-Norway , 9038 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7912-5786","authenticated-orcid":false,"given":"Jonas","family":"Johansson","sequence":"additional","affiliation":[{"name":"Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2709-9472","authenticated-orcid":false,"given":"Tom","family":"Wilsgaard","sequence":"additional","affiliation":[{"name":"Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4401-2866","authenticated-orcid":false,"given":"Anne","family":"Winther","sequence":"additional","affiliation":[{"name":"Division of Medicine, University Hospital of North Norway , 9038 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9704-1711","authenticated-orcid":false,"given":"Tore","family":"Christoffersen","sequence":"additional","affiliation":[{"name":"School of Sports Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]},{"name":"Research and Development Department, Finnmark Hospital Trust , 9510 Alta ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5962-6695","authenticated-orcid":false,"given":"Elin","family":"Evensen","sequence":"additional","affiliation":[{"name":"Department of Health and Care Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway , 9019 Troms\u00f8 ,","place":["Norway"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,8,25]]},"reference":[{"issue":"4","key":"2026090715012478500_ref1","doi-asserted-by":"publisher","first-page":"1281","DOI":"10.1007\/s00198-015-3440-3","article-title":"The National Osteoporosis Foundation\u2019s position statement on peak bone mass development and lifestyle factors: a systematic review and implementation 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