{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T22:46:14Z","timestamp":1790376374809,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2020,8,2]],"date-time":"2020-08-02T00:00:00Z","timestamp":1596326400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We aimed to examine the prevalence of injury after physical therapy intervention for muscle tightness and injury prevention in male high school soccer players. A randomized controlled trial was conducted. Participants comprised 124 players from two high schools who competed in national tournament soccer games held from April 2018 to March 2019. Players were randomly divided into intervention (with a 12\u2010week stretching intervention by physical therapists) and control groups (without the intervention). Players and coaches provided written information regarding injuries and daily training and match times; physical therapists visited each team weekly to collect data and review documentation. Muscle tightness and injury incidence, number, type, location, circumstances, situations, severity, and contents during the 12\u2010week intervention period and a subsequent 40\u2010week observation period were compared between groups. Injuries were significantly lower with intervention during the 40\u2010week observation period (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.01) but not during the 12\u2010week intervention period (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.44). Injury types mainly included disorder, non\u2010contact, lower\u2010limb\/trunk, and muscle\/tendon injuries. Significant interactions were observed for all tightness\u2010test measurement items. The intervention group showed significant improvements in heel\u2010buttock distance, and straight leg\u2010raise and hip rotation angles (pre\u2010intervention\u00a0&lt;\u00a012\u00a0weeks\u00a0&lt;\u00a052\u00a0weeks), as well as significant improvements in ankle dorsiflexion angles at 12 and 52\u00a0weeks (relative to pre\u2010intervention values). Instructed stretching exercises, personally designed by physical therapists to address muscle tightness, improved the range of motion and trunk flexibility, with a positive effect on the injury rate in male high school soccer players, especially for non\u2010contact disorder injuries during training.<\/jats:p>","DOI":"10.1111\/sms.13777","type":"journal-article","created":{"date-parts":[[2020,7,19]],"date-time":"2020-07-19T16:39:35Z","timestamp":1595176775000},"page":"2178-2192","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Injury prevention effects of stretching exercise intervention by physical therapists in male high school soccer players"],"prefix":"10.1111","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0317-202X","authenticated-orcid":false,"given":"Nobuhide","family":"Azuma","sequence":"first","affiliation":[{"name":"Department of Rehabilitation Physical Therapy Faculty of Health Science Fukui Health Science University Fukui City Japan"},{"name":"Division of Health Sciences Graduate School of Medical Sciences Kanazawa University Kanazawa City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fujiko","family":"Someya","sequence":"additional","affiliation":[{"name":"School of Health Sciences Kanazawa University Kanazawa City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,8,2]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"KunzM.265 Million playing football. 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