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Assessing Physical Activity During Youth Sport: The Observational System for Recording Activity in Children: Youth Sports (OSRAC:YS)

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https://ir.library.oregonstate.edu/concern/articles/v979v4687

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  • The purpose of this study was to evaluate the validity and inter-rater reliability of the Observational System for Recording Activity in Children: Youth Sports (OSRAC:YS). Children (N = 29) participating in a parks and recreation soccer program were observed during regularly scheduled practices. Physical activity (PA) intensity and contextual factors were recorded by momentary time-sampling procedures (10-sec observe, 20-sec record). Two observers simultaneously observed and recorded children's PA intensity, practice context, social context, coach behavior, and coach proximity. Inter-rater reliability was based on agreement (Kappa) between the observer's coding for each category, and the Intraclass Correlation Coefficient (ICC) for percent of time spent in MVPA. Validity was assessed by calculating the correlation between OSRAC:YS estimated and objectively measured MVPA. Kappa statistics for each category demonstrated substantial to almost perfect inter-observer agreement (Kappa = 0.67 to 0.93). The ICC for percent time in MVPA was 0.76 (95% C.I. = 0.49 - 0.90). A significant correlation (r = .73) was observed for MVPA recorded by observation and MVPA measured via accelerometry. The results indicate the OSRAC:YS is a reliable and valid tool for measuring children's PA and contextual factors during a youth soccer practice
  • Keywords: assessment, measurement, accelerometer, direct observation, exercise
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  • Cohen, A., McDonald, S., McIver, K., Pate, R., & Trost, S. (2014). Assessing Physical Activity During Youth Sport: The Observational System for Recording Activity in Children: Youth Sports. Pediatric Exercise Science, 26(2), 203-209. doi:10.1123/pes.2013-0095
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  • 26
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  • 2
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