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Implementing a junior high school-based programme to reduce sports injuries through neuromuscular training (iSPRINT): a cluster randomised controlled trial (RCT) [with consumer summary]
Emery CA, van den Berg C, Richmond SA, Palacios-Derflingher L, McKay CD, Doyle-Baker PK, McKinlay M, Toomey CM, Nettel-Aguirre A, Verhagen E, Belton K, Macpherson A, Hagel BE
British Journal of Sports Medicine 2020 Aug;54(15):913-919
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: No; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To evaluate the effectiveness of a junior high school-based sports injury prevention programme to reduce injuries through neuromuscular training (NMT). METHODS: This was a cluster randomised controlled trial. Students were recruited from 12 Calgary junior high schools (2014 to 2017). iSPRINT is a 15 min NMT warm-up including aerobic, agility, strength and balance exercises. Following a workshop, teachers delivered a 12-week iSPRINT NMT (six schools) or a standard-of-practice warm-up (six schools) in physical education classes. The definition of all recorded injuries included injuries that resulted in participants being unable to complete a sport and recreation (S and R) session, lost time from sport and/or seek medical attention. Incidence rate ratios (IRRs) were estimated based on multiple multilevel Poisson regression analyses (adjusting for sex (considering effect modification) and previous injury, offset by S and R participation hours, and school-level and class-level random effects were examined) for intent-to-treat analyses. RESULTS: 1,067 students (aged 11 to 16) were recruited across 12 schools (6 intervention schools (22 classes), 6 control schools (27 classes); 53.7% female, 46.3% male). The iSPRINT programme was protective of all recorded S and R injuries for girls (IRR 0.543, 95% CI 0.295 to 0.998), but not for boys (IRR = 0.866, 95% CI 0.425 to 1.766). The iSPRINT programme was also protective of each of lower extremity injuries (IRR 0.357, 95% CI 0.159 to 0.799) and medical attention injuries (IRR 0.289, 95% CI 0.135 to 0.619) for girls, but not for boys (IRR 1.055, 95% CI 0.404 to 2.753 and IRR 0.639, 95% CI 0.266 to 1.532, respectively). CONCLUSION: The iSPRINT NMT warm-up was effective in preventing each of all recorded injuries, lower extremity injuries and medically treated S and R injuries in female junior high school students. TRIAL REGISTRATION NUMBER: NCT03312504.
Reproduced with permission from the BMJ Publishing Group.

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