{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T16:07:45Z","timestamp":1756310865976},"reference-count":0,"publisher":"Science and Medicine, Inc.","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medical Problems of Performing Artists"],"published-print":{"date-parts":[[2021,3,1]]},"abstract":"<jats:p>BACKGROUND: Demanding performance schedules in modern professional circus can result in less time for injury rehabilitation and strength and conditioning for injury prevention. Lower limb injuries are a common injury presentation in Cirque du Soleil touring show performers. OBJECTIVE:\n To examine the feasibility of introducing a calf raise exercise program in an established professional touring circus show over a 9-week period. METHODS: Twenty-nine professional Cirque du Soleil circus performers were recruited (mean age 31.28 [SD 4.99] yrs). Performers completed the Oslo\n Sports Trauma Research Centre Overuse (OSTRC) questionnaire each week for 18 weeks. In the second 9-week period, performers completed one set of single-leg calf raises to fatigue on each limb, once per day, every workday. Health problems between each 9-week period were compared. Feasibility\n was measured via program adherence and an end-of-study survey. Calf endurance was assessed by measuring the number of single leg calf raises to fatigue. RESULTS: Adherence was high throughout the program, with 93.5% of all exercise sessions completed. Endurance increased by a mean of 22.62\n (SD 27.99) calf raises. No significant changes in the prevalence of self-reported soreness and injury were found: 51.9 (95%CI 44.4, 57.5) of the population reported lower limb injuries during the pre-intervention period and 52.5 (95%CI 49.2, 55.8) during the intervention. Similarly, no significant\n changes were found in severity scores: 20.7 (95%CI 17.7, 23.7) pre-intervention and 20.9 (95%CI 19.4, 22.4) during intervention. CONCLUSION: A single-leg calf raise exercise program can be feasibly introduced into a touring, performing professional circus show without increasing injury numbers\n or self-reported soreness. Furthermore, gains in calf raise endurance can be obtained during a 9-week intervention period.<\/jats:p>","DOI":"10.21091\/mppa.2021.1008","type":"journal-article","created":{"date-parts":[[2021,3,3]],"date-time":"2021-03-03T04:31:44Z","timestamp":1614745904000},"page":"54-60","source":"Crossref","is-referenced-by-count":4,"title":["Implementation of Calf Endurance Training in a Touring Group of Professional Circus Performers: A Feasibility Study"],"prefix":"10.21091","volume":"36","author":[{"given":"Charlotte","family":"Ganderton","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Henry","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew","family":"Walker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"McGinley","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Evert","family":"Verhagen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"8662","container-title":["Medical Problems of Performing Artists"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ingentaconnect.com\/content\/scimed\/mppa\/2021\/00000036\/00000001\/art00008","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,3,3]],"date-time":"2021-03-03T04:31:48Z","timestamp":1614745908000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ingentaconnect.com\/content\/10.21091\/mppa.2021.1008"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,3,1]]}},"alternative-id":["0885-1158(20210301)36:1L.54;1-"],"URL":"https:\/\/doi.org\/10.21091\/mppa.2021.1008","relation":{},"ISSN":["0885-1158"],"issn-type":[{"value":"0885-1158","type":"print"}],"subject":[],"published":{"date-parts":[[2021,3,1]]}}}