{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T16:29:48Z","timestamp":1768408188850,"version":"3.49.0"},"reference-count":34,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2015,8,9]],"date-time":"2015-08-09T00:00:00Z","timestamp":1439078400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["www.tandfonline.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Sport Science"],"published-print":{"date-parts":[[2015,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Objective<\/jats:italic>: To examine the prevalence and factors associated with instruction\u2010related injuries and musculoskeletal pain among group fitness instructors. <jats:italic>Design<\/jats:italic>: Descriptive epidemiology study. <jats:italic>Settings<\/jats:italic>: Online survey. <jats:italic>Participants<\/jats:italic>: Group fitness instructors from three fitness centre companies in Norway (<jats:italic>n<\/jats:italic> = 1473). Assessment of independent variables: questions regarding duration of working as a group fitness instructor, weekly instruction and exercise loading and modality, instruction\u2010related injuries, musculoskeletal pain, use of alcohol, tobacco, snuff, menstrual dysfunction and disordered eating (Eating Disorder Inventory, EDI). The respondents were divided into high instruction loading (HIL), \u22655\u2005h\/w with instruction; and low instruction loading (LIL), &lt;5\u2005h\/w with instruction). <jats:italic>Results<\/jats:italic>: The response rate was 57% (<jats:italic>n<\/jats:italic> = 837). Mean total loading (instruction and exercise) was 11.8\u2005h\/w and 6.3\u2005h\/w in the HIL and LIL groups (<jats:italic>p<\/jats:italic> &lt; .001), respectively. The prevalence of acute (9% vs. 6%, <jats:italic>p<\/jats:italic> &lt; .05), overuse (38% vs. 24%, <jats:italic>p<\/jats:italic> &lt; .001) and both acute and overuse injuries (25% vs. 10%, <jats:italic>p<\/jats:italic> &lt; .001) was higher in the HIL than in the LIL group (OR: 3.9, CI: 2.7, 5.5). The most prevalent injury locations were ankle and lower leg. The most frequent location for musculoskeletal pain was the shoulder\/neck region. Factors associated with injury were instruction loading (h\/w), years working as an instructor and EDI score. A high total EDI score predicted musculoskeletal pain. <jats:italic>Conclusion<\/jats:italic>: The high prevalence of injuries and musculoskeletal pain suggests a need for prevention strategies in the fitness industry. There is a need for limits regarding weekly instruction loading, especially for classes with high metabolic and\/or mechanical loading.<\/jats:p>","DOI":"10.1080\/17461391.2015.1062564","type":"journal-article","created":{"date-parts":[[2015,8,10]],"date-time":"2015-08-10T06:54:54Z","timestamp":1439189694000},"page":"784-792","update-policy":"https:\/\/doi.org\/10.1080\/tandf_crossmark_01","source":"Crossref","is-referenced-by-count":10,"title":["Injuries and musculoskeletal pain among Norwegian group fitness instructors"],"prefix":"10.1002","volume":"15","author":[{"given":"Solfrid","family":"Bratland\u2010Sanda","sequence":"first","affiliation":[{"name":"Department of Sport and Outdoor Life Studies Telemark University College B\u00f8 i Telemark Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jorunn","family":"Sundgot\u2010Borgen","sequence":"additional","affiliation":[{"name":"Oslo Sport Trauma Research Center Department of Sports Medicine Norwegian School of Sport Sciences Oslo Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Grethe","family":"Myklebust","sequence":"additional","affiliation":[{"name":"Oslo Sport Trauma Research Center Department of Sports Medicine Norwegian School of Sport Sciences Oslo Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,8,9]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2009.066936"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510376816"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102012\u2010091524"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510361236"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.7547\/87507315\u201091\u201010\u2010528"},{"key":"e_1_2_8_7_1","unstructured":"EHFA. 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