{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:35:20Z","timestamp":1787016920520,"version":"build-2736575974"},"reference-count":67,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2021,1,12]],"date-time":"2021-01-12T00:00:00Z","timestamp":1610409600000},"content-version":"unspecified","delay-in-days":11,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2020,12,31]]},"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Medical examinations for adult elite athletes are performed all over the world, however, no studies in the relevant English literature have reported on orthopaedic medical examinations for young amateur athletes. The purpose of this study was to report the results of orthopaedic medical examinations of the spine and lower extremities in young amateur athletes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This repeated cross-sectional study from 2014 to 2018 included a total of 323 young amateur athletes (age, 12\u201318 years) who were active in one of the following four sports: boxing, canoeing, weightlifting and track and field. The orthopaedic medical examination consisted of six assessments (physical examinations, the generalised joint laxity, muscle and joint tightness, static alignment and muscle volume of the lower extremities and the medial longitudinal arch of the foot). Questions regarding pain in the spine and lower extremities were also performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 323 young amateur athletes, 17 (5.3%) had received orthopaedic treatment at the time of the medical examination, with spondylolysis being the most common cause (29.4%, 5\/17). Among 306 young athletes who had not received orthopaedic treatment, 61 (19.9%) had at least one positive finding in physical examinations or had pain in the spine or lower extremities. Anterior drawer test of the ankle and Kemp test for the spine accounted for 34% and 28% of positive findings, respectively. Low back pain and knee pain accounted for 58% and 16% of pain, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The present study showed that approximately one-fifth of young amateur athletes who had not received orthopaedic treatment had pain in the spine and lower extremities and positive findings in physical examinations that may require orthopaedic treatments. In addition to the early detection of injuries, orthopaedic medical examinations for young amateur athletes provide an opportunity to educate such athletes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2020-042188","type":"journal-article","created":{"date-parts":[[2021,1,12]],"date-time":"2021-01-12T20:25:04Z","timestamp":1610483104000},"page":"e042188","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Orthopaedic medical examination for young amateur athletes: a repeated cross-sectional study from 2014 to 2018"],"prefix":"10.1136","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4117-2442","authenticated-orcid":false,"given":"Takuji","family":"Yokoe","sequence":"first","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takuya","family":"Tajima","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nami","family":"Yamaguchi","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makoto","family":"Nagasawa","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomomi","family":"Ota","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yudai","family":"Morita","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Etsuo","family":"Chosa","sequence":"additional","affiliation":[{"name":"Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2021,1,12]]},"reference":[{"key":"2025121509575270000_11.1.e042188.1","doi-asserted-by":"publisher","DOI":"10.1097\/01.jsm.0000248848.62368.43"},{"key":"2025121509575270000_11.1.e042188.2","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200333010-00006"},{"key":"2025121509575270000_11.1.e042188.3","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwj337"},{"key":"2025121509575270000_11.1.e042188.4","doi-asserted-by":"publisher","DOI":"10.1067\/mem.2001.111707"},{"key":"2025121509575270000_11.1.e042188.5","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1097\/00005768-199602000-00002","article-title":"Low-back pain in adolescent athletes","volume":"28","author":"Kujala","year":"1996","journal-title":"Med Sci Sports Exerc"},{"key":"2025121509575270000_11.1.e042188.6","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1097\/JSA.0b013e318205e373","article-title":"Back pain in the young athlete","volume":"19","author":"Gurd","year":"2011","journal-title":"Sports Med Arthrosc Rev"},{"key":"2025121509575270000_11.1.e042188.7","doi-asserted-by":"crossref","first-page":"448","DOI":"10.1111\/sms.12664","article-title":"Back pain prevalence in adolescent athletes","volume":"27","author":"M\u00fcller","year":"2017","journal-title":"Scand J Med Sci Sports"},{"key":"2025121509575270000_11.1.e042188.8","doi-asserted-by":"publisher","DOI":"10.1001\/archpedi.1995.02170130017004"},{"key":"2025121509575270000_11.1.e042188.9","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1111\/j.1600-0838.1996.tb00067.x","article-title":"Low back pain in elite cross-country skiers. 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