Relationship Between Cardiorespiratory Fitness, Weight Status, and Academic Performance: Longitudinal Evidence From 1 School District.

OBJECTIVES: We examined the longitudinal relationship between cardiovascular fitness (CRF) and academic performance (AP) among students in a diverse public school district. Furthermore, we determined whether the relationship between CRF and AP varied by student sociodemographic characteristics. METHODS: This study used data from 2005-2006 to 2008-2009. AP was assessed by Massachusetts Comprehensive Assessment System (MCAS) math (N = 1224) and English Language Arts (ELA) (N = 1248) z-scores. CRF was assessed by an age- and sex-adjusted 20-yard shuttle run (pass/fail). Multilevel growth models were used to estimate the relationship between MCAS z-scores and changes in grade, CRF, and weight status, controlling for student sociodemographic characteristics. RESULTS: Students who passed the fitness test performed better on MCAS tests (ELA: .159, p < .001; Math: 0.346, p < .001) at each study wave relative to those who did not pass. The relationship between AP and fitness was attenuated for low socioeconomic status(ELA: -.111, p < .05) and minority (Math: black -0.249, p < .01; Latino -0.216, p < .01) students. CONCLUSIONS: These results add to the literature highlighting the role of CRF as an important predictor of performance on standardized tests. More research is needed to understand the disparities experienced by low-income and minority students.

The role of recreational spaces in meeting physical activity recommendations among middle school students.

BACKGROUND: There is growing recognition of the importance of recreational space utilization for promoting physical activity (PA) among youth. METHODS: A cross-sectional study was conducted with a sample of 926 diverse 6th-8th grade students in Somerville, MA. Participants completed the 2007 Youth Risk Surveillance Survey (YRBS). Chi-square testing and logistical regression modeling were performed to predict meeting national PA recommendations for moderate, vigorous, and 60 minutes or more (60+) PA. RESULTS: The participants reported meeting recommended PA levels for moderate (27%), vigorous (70%) and 60+ (21%) PA. In multivariate analysis, being male and speaking English were significantly associated with meeting all 3 PA recommendations. Recreational spaces significantly associated with meeting PA recommendations included neighborhood parks and walk/bike paths, playing fields and courts, and recreational centers. Recreational space utilization varied by gender, race/ethnicity, and language. CONCLUSIONS: Recreational space utilization was an important predictor of meeting PA recommendations among middle school students. Our results showed that PA attainment and recreational space utilization varied by demographic characteristics. The role of each recreational space in predicting PA varied depending on the outcome used. This study demonstrates the potential use of YRBS data to inform resource allocation for PA promotion in diverse communities.