Sport injury and obesity prevention in junior high school students

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dc.contributor.advisorEmery, Carolyn A.
dc.contributor.authorRichmond, Sarah Ann
dc.date.accessioned2017-12-18T22:31:25Z
dc.date.available2017-12-18T22:31:25Z
dc.date.issued2012
dc.descriptionBibliography: p. 244-262en
dc.description.abstractObjective: To examine the effectiveness of a high-intensity, neuromuscular training (NMT) prevention strategy in reducing injury and decreasing measures of adiposity in school-aged adolescents. Design: Pilot cluster-randomized controlled trial and historical cohort study. Subjects: Two junior high schools were approached for recruitment. Students from grades 7 - 9 ( ages 11 - 15 years) completed the study in both years [ (21 classes in year one (n= 725), 24 classes in year two (n= 686)]. Intervention: The twelve-week intervention program was a high-intensity NMT program (including aerobic, strength, balance and agility components) designed to reduce sport injury risk and measures of adiposity. The control program was a standardized warm-up (including aerobic, static and dynamic stretching). Outcome measures: Injury surveillance included injury assessment by a physiotherapist. The injury definition was sport injury resulting in medical attention and/or removal from a session and/or time loss from sport. Mean changes in measures of waist circumference (WC) and aerobic fitness (AF) were examined between intervention and control groups. Results: Based on Poisson regression analysis, adjusted for clustering by class and covariates, the incidence rate ratio (IRR) comparing the intervention group to the control group in the first year was 0.30 (95% CI; 0.19 - 0.49) for all sport injuries (ASI), lower extremity injury: (LEI) 0.31 (95% CI; 0.19 - 0.51), time loss injury (TLI): 0.37 (95%CI; 0.17 - 0.81), ankle sprain injury: 0.27 (95% CI; 0.15 - 0.50), and knee sprain injury: 0.36 (95% CI; 0.13 - 0.98). There was a decrease in WC: -0.99 centimeters [95%CI; -1.84 - (-0.14)] and an increase in AF: 1.28 ml kg-1.min-1 (95%CI; 0.66- 1.90) compared to the control school. In year two, results were consistent, demonstrating a protective effect for ASI (IRR= 0.35 (95% CI; 0.21 - 0.58), LEI (IRR= 0.29 (95% CI; 0.15 - 0.57), and knee injuries (IRR= 0.34 (95% CI; 0.12 - 0.95). Although not statistically significant, there was a reduction in TLI (IRR= 0.49 (95% CI; 0.21 - 1.20), and ankle injury (IRR= 0.44 (95% CI; 0.16 - 1.19). There was also a decrease in WC: -1.47 centimeters [95%CI; -1.88 - (-1.06)] and an increase in AF: 0.82 ml"kg-1.min-1 (95%CI; 0.17 - 1.46)] comparing the intervention year to control year. Conclusions: A high-intensity NMT program is protective of sport injury and reduces measures of adiposity in school-aged adolescents (ages 11 - 15 years).
dc.format.extentxvii, 316 leaves : ill. ; 30 cm.en
dc.identifier.citationRichmond, S. A. (2012). Sport injury and obesity prevention in junior high school students (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/4754en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/4754
dc.identifier.urihttp://hdl.handle.net/1880/105755
dc.language.isoeng
dc.publisher.facultyKinesiology
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.titleSport injury and obesity prevention in junior high school students
dc.typedoctoral thesis
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameDoctor of Philosophy (PhD)
ucalgary.item.requestcopytrue
ucalgary.thesis.accessionTheses Collection 58.002:Box 2093 627942965
ucalgary.thesis.notesUARCen
ucalgary.thesis.uarcreleaseyen
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