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Background There is limited evidence on the potential negative metabolic health impacts of prolonged and uninterrupted sedentary bouts in structurally disadvantaged youth. This study investigated associations between sedentary bout variables and metabolic health markers in the Hispanic Community Health Study/SOL Youth (Study of Latino Youth). Methods and Results SOL Youth was a population‐based cohort of 1466 youth (age range, 8–16 years; 48.5% female); 957 youth were included in the analytic sample based on complete data. Accelerometers measured moderate‐to‐vigorous physical activity (MVPA), total sedentary time, and sedentary bout patterns (daily time spent in sedentary bouts ≥30 minutes, median sedentary bout duration, and number of daily breaks from sedentary time). Clinical measures included body mass index, waist circumference, fasting glucose, glycated hemoglobin, fasting insulin, and the homeostasis model assessment of insulin resistance. After adjusting for sociodemographics, total sedentary time, and MVPA, longer median bout durations and fewer sedentary breaks were associated with a greater body mass index percentile (bbouts=0.09 and bbreaks=−0.18), waist circumference (bbouts=0.12 and bbreaks=−0.20), and fasting insulin (bbouts=0.09 and bbreaks=−0.21). Fewer breaks were also associated with a greater homeostasis model assessment of insulin resistance (b=−0.21). More time in bouts lasting ≥30 minutes was associated with a greater fasting glucose (b=0.18) and glycated hemoglobin (b=0.19). Conclusions Greater accumulation of sedentary time in prolonged and uninterrupted bouts had adverse associations with adiposity and glycemic control over and above total sedentary time and MVPA. Findings suggest interventions in Hispanic/Latino youth targeting both ends of the activity spectrum (more MVPA and less prolonged/uninterrupted sedentary patterns) may provide greater health benefits than those targeting only MVPA.

Abstract Background Maintaining a bond with one’s family as well coping with stress while acculturating to the US may protect Hispanic/Latino youth from increased sugar-sweetened beverages (SSB) consumption, which heightens the risk for overweight and obesity. This study aims to examine associations between acculturative stress, family functioning, and SSB consumption by acculturation status among U.S. Hispanic/Latino youth. Methods With cross-sectional data on 1465 youth 8-16y (49.6% females) participating in the Hispanic Community Children’s Health Study/Study of Latino Youth, we classified youths into four acculturation groups – assimilated, integrated, marginalized/separated, and unclassified. SSB consumption was assessed through two 24-h diet recalls and defined as intake frequency of soda, fruit juice, sweetened soft and fruit drinks. Multi-group path regression models were used to test associations of Hispanic/Latino youth’ acculturative stress and family functioning with SSB consumption, as well as the moderating role of acculturation status. Results When controlling for age, sex, and study site, acculturative stress (β = − 0.13, p = 0.01) was inversely associated with SSB, and poor family functioning (β = 0.11, p = 0.07) was only marginally associated with SSB consumption among youth classified as assimilated but not among youth classified as integrated, marginalized/separated, or unclassified. Conclusions A socio-ecological perspective that incorporates the role of key acculturation-related factors across multiple levels may aid efforts to identify mechanisms that influence the relationship between acculturation status and diet among Hispanic/Latino youth and their families.