{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T03:36:47Z","timestamp":1775705807959,"version":"3.50.1"},"reference-count":40,"publisher":"Georg Thieme Verlag KG","issue":"03","funder":[{"name":"Japan Sports Agency"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Sports Med"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Iron and vitamin D deficiencies can affect athletes\u2019 health and performance.\n                    However, the epidemiology and associated risk factors remain unclear.\n                    Forty-three elite female athletics athletes (20.2\u00b11.9 years) were included. A\n                    survey regarding the training schedule and Eating Attitudes Test-26, body\n                    composition, bone mineral density, and serum 25-hydroxyvitamin D (25(OH)D) and\n                    ferritin levels were assessed. Mean serum 25(OH)D and ferritin levels were\n                    25.2\u00b15.5 ng\/mL and 29.0\u00b113.2 ng\/mL, respectively, and 83.7% and 41.9% of\n                    athletes had vitamin D and ferritin insufficiency, respectively. Serum 25(OH)D\n                    level was negatively correlated with the number of rest days per week\n                    (Coefficient,\u22126.19; 95% confidence interval [CI],\u22129.82\u2013\u22122.57; p=0.002), and\n                    serum ferritin level was negatively correlated with body mass index\n                    (Coefficient,\u22123.87; 95% CI,\u22127.57\u2013\u22120.16; p=0.041). Performance levels were\n                    positively correlated with serum vitamin D levels (Coefficients, 7.25; 95% CI,\n                    0.25\u201314.25; p=0.043) and negatively correlated with EAT-26 scores\n                    (Coefficient,\u22127.30; 95% CI,\u221212.61\u2013\u22121.98; p=0.009) and body fat percentage\n                    (Coefficient,\u221213.26; 95% CI,\u221224.66\u2013\u22121.86; p=0.025). Vitamin D and ferritin\n                    insufficiencies are prevalent among Japanese female athletics athletes. Serum\n                    vitamin D level was related to performance level.<\/jats:p>","DOI":"10.1055\/a-2421-6891","type":"journal-article","created":{"date-parts":[[2024,9,24]],"date-time":"2024-09-24T22:37:08Z","timestamp":1727217428000},"page":"182-188","source":"Crossref","is-referenced-by-count":1,"title":["Link Between Ferritin, Vitamin D, Performance, and Eating Attitudes\n                    in Female Athletes"],"prefix":"10.1055","volume":"46","author":[{"given":"Yuka","family":"Tsukahara","sequence":"additional","affiliation":[{"name":"Graduate School of Sports Science, Waseda University \u2013\n                    Tokorozawa Campus, Tokorozawa, Japan"},{"name":"Department of Sports Medicine, Tokyo Women's College of Physical\n                    Education, Tokyo, Japan"},{"name":"Department of Family and Community Medicine, Caver\n                    College of Medicine, The University of Iowa, Iowa City, Iowa, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Suguru","family":"Torii","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, Waseda University, Tokorozawa,\n                    Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukiko","family":"Taniguchi","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Kyoto Daini Sekijuji Byoin,\n                    Kyoto, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Torao","family":"Kusakabe","sequence":"additional","affiliation":[{"name":"Orthopedic Surgery, Kyoto Daini Red-Cross Hospital, Kyoto,\n                    Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hideki","family":"Murakami","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Nagoya City University\n                    Graduate School of Medical Sciences and Medical School, Nagoya,\n                    Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fumihiro","family":"Yamasawa","sequence":"additional","affiliation":[{"name":"Marubeni Clinic, Marubeni Corp, Chiyoda-ku,\n                    Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takao","family":"Akama","sequence":"additional","affiliation":[{"name":"Faculty of Sport Sciences, Waseda University, Tokorozawa,\n                    Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2025,1,14]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"493","DOI":"10.1097\/jsm.0000000000000390","article-title":"Incidence of Iron Deficiency and Iron Deficient Anemia in Elite Runners and\n                    Triathletes","volume":"27","author":"A Coates","year":"2017","journal-title":"Clin J Sport 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(Basel)"},{"key":"ref40","doi-asserted-by":"crossref","first-page":"1595","DOI":"10.1210\/jc.2009-2309","article-title":"Vitamin D status and its relation to muscle mass and muscle fat in young\n                    women","volume":"95","author":"V Gilsanz","year":"2010","journal-title":"J Clin Endocrinol Metab"},{"key":"ref41","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1055\/s-2005-837505","article-title":"Food restriction, performance, biochemical, psychological, and endocrine changes\n                    in judo athletes","volume":"27","author":"F Degoutte","year":"2006","journal-title":"Int J Sports Med"}],"container-title":["International Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-2421-6891.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,6]],"date-time":"2025-03-06T23:40:54Z","timestamp":1741304454000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-2421-6891"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,9,24]]},"references-count":40,"journal-issue":{"issue":"03","published-online":{"date-parts":[[2025,3,6]]},"published-print":{"date-parts":[[2025,3]]}},"URL":"https:\/\/doi.org\/10.1055\/a-2421-6891","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":[[2024,9,24]]},"published":{"date-parts":[[2024,9,24]]}}}