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The study was to cross-culturally adapt and psychometrically validate a Simplified Chinese version of the FASH (SC-FASH).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Cross-cultural adaptation was performed in accordance with the internationally recognised guidelines of the American Academy of Orthopaedic Surgeons Outcome Committee. The FASH is a 10-item questionnaire. The sample size should be 5 to 10 times the total number of items on the scale. 150 participants with acute hamstring injuries were included in this study. Cronbach's \u03b1 and the intra-class correlation coefficient (ICC) were used to assess reliability, and correlations between the SC-FASH and the Exercise-Induced Leg Pain Questionnaire (EILP), the Visual Analogue Scale (VAS) and the Short Form (36) Health Survey (SF-36) were used to assess construct validity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Between February and May 2025, 150 literate native Chinese speakers with hamstring injuries were recruited for a study. All the 10 items had an answer rate of 100%. The FASH was successfully adapted and translated into Simplified Chinese. Each item was appropriately correlated with the total items. Good reliabilities were observed in SC-FASH, evidenced by Cronbach's alpha of 0.88, an ICC 0.97 (95% CI, 0.96\u20130.98). The elimination of any one item did not result in a Cronbach's \u03b1\u2009&lt;\u20090.80. Standard Error of the Mean (SEM) was 4.41. Good correlations were observed with EILP (0.68,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01), VAS (-0.62,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01), and physical function of SF-36 (0.62,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Moderate correlations were observed with role physical (0.46,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01), bodily pain (0.50,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01), and general health (0.44,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Fair to poor correlations were observed with vitality, social function, role emotional, and mental health domains of SF-36.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>SC-FASH is recommended to evaluate the severity of hamstring muscle injuries and their impact on physical function and sports ability in Mainland China due to its good reliability, and validity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s13018-025-06578-2","type":"journal-article","created":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T05:45:47Z","timestamp":1767159947000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Cross-cultural adaptation and validation of the simplified Chinese version of the functional assessment scale for acute hamstring injuries (FASH) questionnaire"],"prefix":"10.1186","volume":"21","author":[{"given":"Yu-Jie","family":"Wu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ning","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiang","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kan","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qing-Meng","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shi-Qi","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,12,31]]},"reference":[{"key":"6578_CR1","doi-asserted-by":"publisher","first-page":"603","DOI":"10.52082\/jssm.2024.603","volume":"23","author":"L Mao","year":"2024","unstructured":"Mao L, Ren D, Huang S, Wu X, Ruan M. 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