Document Detail

Validity of a practitioner-administered observational tool to measure physical activity, nutrition, and screen time in school-age programs.
MedLine Citation:
PMID:  25429898     Owner:  NLM     Status:  Publisher    
BackgroundNutrition and physical activity interventions have been effective in creating environmental changes in afterschool programs. However, accurate assessment can be time-consuming and expensive as initiatives are scaled up for optimal population impact. This study aims to determine the criterion validity of a simple, low-cost, practitioner-administered observational measure of afterschool physical activity, nutrition, and screen time practices and child behaviors.MethodsDirectors from 35 programs in three cities completed the Out-of-School Nutrition and Physical Activity Observational Practice Assessment Tool (OSNAP-OPAT) on five days. Trained observers recorded snacks served and obtained accelerometer data each day during the same week. Observations of physical activity participation and snack consumption were conducted on two days. Correlations were calculated to validate weekly average estimates from OSNAP-OPAT compared to criterion measures. Weekly criterion averages are based on 175 meals served, snack consumption of 528 children, and physical activity levels of 356 children.ResultsOSNAP-OPAT validly assessed serving water (r¿=¿0.73), fruits and vegetables (r¿=¿0.84), juice >4oz (r¿=¿0.56), and grains (r¿=¿0.60) at snack; sugary drinks (r¿=¿0.71) and foods (r¿=¿0.68) from outside the program; and children¿s water consumption (r¿=¿0.56) (all p <0.05). Reports of physical activity time offered were correlated with accelerometer estimates (minutes of moderate and vigorous physical activity r¿=¿0.59, p¿=¿0.02; vigorous physical activity r¿=¿0.63, p¿=¿0.01). The reported proportion of children participating in moderate and vigorous physical activity was correlated with observations (r¿=¿0.48, p¿=¿0.03), as were reports of computer (r¿=¿0.85) and TV/movie (r¿=¿0.68) time compared to direct observations (both p¿<¿0.01).ConclusionsOSNAP-OPAT can assist researchers and practitioners in validly assessing nutrition and physical activity environments and behaviors in afterschool settings.Trial registrationPhase 1 of this measure validation was conducted during a study registered at NCT01396473.
Rebekka M Lee; Karen M Emmons; Cassandra A Okechukwu; Jessica L Barrett; Erica L Kenney; Angie L Cradock; Catherine M Giles; Madeleine E de Blois; Steven L Gortmaker
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-28
Journal Detail:
Title:  The international journal of behavioral nutrition and physical activity     Volume:  11     ISSN:  1479-5868     ISO Abbreviation:  Int J Behav Nutr Phys Act     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-28     Completed Date:  -     Revised Date:  2014-11-29    
Medline Journal Info:
Nlm Unique ID:  101217089     Medline TA:  Int J Behav Nutr Phys Act     Country:  -    
Other Details:
Languages:  ENG     Pagination:  145     Citation Subset:  -    
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