{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:28:23Z","timestamp":1760059703325,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T00:00:00Z","timestamp":1751328000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JFMK"],"abstract":"<jats:p>Background: Although the difficulty level of figure skating programs has increased in the last two decades, particularly at the junior level, trends in performance have not been reported. This retrospective observational study investigated performance development trends among the top five junior figure skaters competing at international levels in both the ladies\u2019 and men\u2019s singles disciplines from 2005 to 2020. Data from 160 junior single ladies and 160 junior single men were analyzed. The focus was on the progression of technical elements\u2014particularly jumps\u2014and their potential correlation with injury risk. It was hypothesized that younger athletes are increasingly performing jumps with more revolutions, thereby enhancing overall competition standards. Materials and Methods: Using data from the Junior World Championships and Junior Grand Prix Finals, linear regression analysis and one-way ANOVA were conducted to track the frequency of double, triple, and quadruple jumps, as well as trends in age development among athletes in the singles categories from 2005 to 2020. Results: The results indicate a significant increase in the execution of higher-revolution jumps among junior athletes. Between 2005 and 2012, the frequency of double jumps declined across all events, with the most pronounced reductions observed in the Ladies\u2019 Junior World Championships (\u0394 = 0.216, p = 0.004, d = 1.64) and the Men\u2019s Junior World Championships (\u0394 = 0.500, p = 0.001, d = 1.82). From 2005 to 2011, the frequencies of triple and quadruple jumps increased, while double jumps remained stable or showed only slight increases. Triple jumps showed slight downward trends (e.g., R2 = 0.0202 at the Men\u2019s Junior World Championships). Although still rare, the frequency of quadruple jumps has shown a consistent upward trend across multiple competitions. Between 2000 and 2009, all four events exhibited declining age trends, with decreases ranging from \u22120.029 to \u22120.078 years of age per year. In the subsequent decade (2010\u20132020), when averaged across all events, the observed difference slope (\u0394 = 0.014) indicated a continued decline in athlete age. Conclusions: In summary, increases in more difficult jumps were found, with simultaneous decreases in less difficult jumps. As jump complexity rises, a parallel increase in sport-specific injury incidence can be anticipated, highlighting the need for proactive strategies for injury prevention and athlete well-being.<\/jats:p>","DOI":"10.3390\/jfmk10030251","type":"journal-article","created":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T09:29:01Z","timestamp":1751362141000},"page":"251","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Jumping Performance Development in Junior Single Figure Skating at International Championships and Competitions and Its Implications for Higher Risk of Acute and Overuse Injuries: A Retrospective Observational Study from 2005 to 2020"],"prefix":"10.3390","volume":"10","author":[{"given":"Zo\u00e9","family":"Stehlin","sequence":"first","affiliation":[{"name":"Department of Trauma Surgery, University Hospital Zurich, 8091 Zurich, Switzerland"},{"name":"Faculty of Medicine, University of Zurich, 8006 Zurich, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6438-5208","authenticated-orcid":false,"given":"Felix Karl-Ludwig","family":"Klingebiel","sequence":"additional","affiliation":[{"name":"Department of Trauma Surgery, University Hospital Zurich, 8091 Zurich, Switzerland"},{"name":"Harald Tscherne Laboratory for Orthopaedic and Trauma Research, Department of Surgical Research, Zurich University Hospital, 8091 Zurich, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hans-Christoph","family":"Pape","sequence":"additional","affiliation":[{"name":"Department of Trauma Surgery, University Hospital Zurich, 8091 Zurich, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9512-2910","authenticated-orcid":false,"given":"Bergita","family":"Ganse","sequence":"additional","affiliation":[{"name":"Department of Trauma, Hand and Reconstructive Surgery, Saarland University, 66421 Homburg, Germany"},{"name":"Innovative Implant Development (Fracture Healing), Departments and institutes of Surgery, Saarland University, 66421 Homburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4775-1103","authenticated-orcid":false,"given":"Thomas","family":"Rauer","sequence":"additional","affiliation":[{"name":"Department of Trauma Surgery, University Hospital Zurich, 8091 Zurich, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1136\/bjsports-2014-094538","article-title":"Sports Injuries and Illnesses in the Sochi 2014 Olympic Winter Games","volume":"49","author":"Soligard","year":"2015","journal-title":"Br. 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