Document Type



youth activity, sedentary time, accelerometer, Hispanic/Latinos

Publication Date



Objectives: The increasing rates of physical inactivity and sedentary behaviors among youth are a significant public health concern. The greatest disparities in physical activity (PA) are experienced by underserved (racial/ethnic minority, low-income) youth. This study aimed to characterize accelerometer-measured PA behaviors in a sample of low-income, predominantly Latino, preadolescents. Methods: Participants wore wrist worn GENEActiv accelerometers for 7 days. PA levels were classified as sedentary (< 50 mg), light (50-150 mg), moderate (> 150-500 mg), vigorous (> 500 mg), and MVPA (≥ 150 mg). Time spent in PA levels and sedentary time (ST), prevalence of meeting MVPA guidelines, and PA volume were estimated from accelerometer data. Three-way between-group multivariate analyses of variance examined adjusted differences between age, sex, and weight status groups across activity outcomes. Results: Participants (N=68, Mage= 9.45 ± 1.73 years) spent an average of 103 minutes/day in MVPA and 50% of participants met MVPA guidelines. They also spent 65% of their wake time at a sedentary level. Participants engaged in more total PA (p < .001) on weekdays than weekends. Older participants (10-12 years) spent more min/day in ST (p < .01) and had lower PA volume (p < .01) than younger participants (6-9 years). Girls spent more time in bouts of MVPA (p < .01) and had higher PA volume (p = 0.1) than boys. Conclusions: The findings of this study indicate that preadolescents spent a high proportion of time being sedentary and still met MVPA guidelines. More research is needed to understand the underlying causes of PA and ST patterns found in this study.