{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T10:57:58Z","timestamp":1788433078129,"version":"build-2803163510"},"reference-count":45,"publisher":"Georg Thieme Verlag KG","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Sports Med"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study aimed to determine the influence of sport type and training volume\n                    during adolescence on low bone mineral density (BMD) in long-distance runners.\n                    In total, 125 competitive long-distance runners (64 males; 21.3\u00b14.2 years, 61\n                    females; 21.4\u00b13.1 years) participated in this retrospective cohort study. We\n                    collected training history data during adolescence using a questionnaire and\n                    measured BMD of the lumbar spine and whole body using dual-energy X-ray\n                    absorptiometry (DXA). Male runners with low BMD ran for more hours (p=0.02) and\n                    had a smaller proportion of multidirectional loading activity (p=0.03) in\n                    elementary school than those with normal BMD. Although female runners with low\n                    BMD performed multidirectional activity for more hours in middle school than\n                    those with normal BMD (p=0.01), running volume was similar between groups. There\n                    was an increasing trend in the total number of hours of physical activity in\n                    middle school in female runners with low BMD (p=0.05). These results suggest\n                    that avoiding specialization in long-distance running, increasing the proportion\n                    of multidirectional sports, and preventing overload during the bone growth phase\n                    may reduce the risk of low BMD among runners.<\/jats:p>","DOI":"10.1055\/a-2393-3391","type":"journal-article","created":{"date-parts":[[2024,8,19]],"date-time":"2024-08-19T23:06:36Z","timestamp":1724108796000},"page":"59-65","source":"Crossref","is-referenced-by-count":2,"title":["The Influence of Adolescent Physical Activity on Bone Mineral Density\n                    among Adult Runners"],"prefix":"10.1055","volume":"46","author":[{"given":"Nodoka","family":"Ikegami","sequence":"additional","affiliation":[{"name":"Graduate School of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4677-1156","authenticated-orcid":false,"given":"Akiko","family":"Hatsukari","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshinao","family":"Kamikubo","sequence":"additional","affiliation":[{"name":"Graduate School of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryota","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Graduate School of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2329-290X","authenticated-orcid":false,"given":"Toshiharu","family":"Tsutsui","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suguru","family":"Torii","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, Waseda University \u2013 Tokorozawa,\n                    Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2024,10,8]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1177\/23259671211014496","article-title":"Epidemiology of NCAA bone stress injuries: A comparison of athletes in divisions\n                    I, II, and III","volume":"9","author":"A Bratsman","year":"2021","journal-title":"Orthop J Sports Med"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1177\/0363546514562739","article-title":"Epidemiology of stress fracture injuries among us high school athletes,\n                    2005\u20132006 through 2012-2013","volume":"43","author":"B G Changstrom","year":"2015","journal-title":"Am J Sports Med"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"966","DOI":"10.4085\/1062-6050-52.8.01","article-title":"The epidemiology of stress fractures in collegiate student-athletes, 2004\u20132005\n                    through 2013-2014 academic years","volume":"52","author":"K H Rizzone","year":"2017","journal-title":"J Athl Train"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"1457","DOI":"10.1249\/mss.0b013e318074e54b","article-title":"Risk factors for stress fracture among young female cross-country runners","volume":"39","author":"J L Kelsey","year":"2007","journal-title":"Med Sci Sports Exerc"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"834","DOI":"10.1177\/0363546521993807","article-title":"Does magnetic resonance imaging grading correlate with return to sports after\n                    bone stress injuries? 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Br J Sports Med"},{"key":"ref38","doi-asserted-by":"crossref","first-page":"1729","DOI":"10.1002\/jbmr.412","article-title":"Bone mineral accrual from 8 to 30 years of age: An estimation of peak bone\n                    mass","volume":"26","author":"AD G Baxter-Jones","year":"2011","journal-title":"J Bone Miner Res"},{"key":"ref39","doi-asserted-by":"crossref","first-page":"2020","DOI":"10.1249\/MSS.0000000000003016","article-title":"Enhanced bone size, microarchitecture, and strength in female runners with a\n                    history of playing multidirectional sports","volume":"54","author":"S J Warden","year":"2022","journal-title":"Med Sci Sports Exerc"},{"key":"ref40","doi-asserted-by":"crossref","first-page":"116392","DOI":"10.1016\/j.bone.2022.116392","article-title":"Multidirectional basketball activities load different regions of the tibia: A\n                    subject-specific muscle-driven finite element study","volume":"159","author":"C Yan","year":"2022","journal-title":"Bone"},{"key":"ref41","doi-asserted-by":"crossref","first-page":"1239","DOI":"10.4085\/1062-6050-0547.19","article-title":"Sport specialization and low bone mineral density in female high school distance\n                    runners","volume":"55","author":"M J Rauh","year":"2020","journal-title":"J Athl Train"},{"key":"ref42","doi-asserted-by":"crossref","first-page":"371","DOI":"10.1016\/j.bone.2007.05.003","article-title":"Bone mineral density in female high school athletes: Interactions of menstrual\n                    function and type of mechanical loading","volume":"41","author":"J F Nichols","year":"2007","journal-title":"Bone"},{"key":"ref43","doi-asserted-by":"crossref","first-page":"1672","DOI":"10.1359\/jbmr.1999.14.10.1672","article-title":"A six-year longitudinal study of the relationship of physical activity to bone\n                    mineral accrual in growing children: The University of Saskatchewan Bone Mineral\n                    Accrual Study","volume":"14","author":"D A Bailey","year":"1999","journal-title":"J Bone Miner Res"},{"key":"ref44","doi-asserted-by":"crossref","first-page":"305","DOI":"10.1136\/bjsports-2020-102518","article-title":"Youth running consensus statement: Minimising risk of injury and illness in\n                    youth runners","volume":"55","author":"B J Krabak","year":"2021","journal-title":"Br J Sports Med"},{"key":"ref45","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1016\/j.pmrj.2014.09.017","article-title":"Participation in ball sports may represent a prehabilitation strategy to prevent\n                    future stress fractures and promote bone health in young athletes","volume":"7","author":"A S Tenforde","year":"2015","journal-title":"PM and R"}],"container-title":["International Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-2393-3391.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,5]],"date-time":"2025-01-05T23:51:46Z","timestamp":1736121106000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-2393-3391"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,8,19]]},"references-count":45,"journal-issue":{"issue":"01","published-online":{"date-parts":[[2025,1,5]]},"published-print":{"date-parts":[[2025,1]]}},"URL":"https:\/\/doi.org\/10.1055\/a-2393-3391","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":[[2024,8,19]]},"published":{"date-parts":[[2024,8,19]]}}}