Does diet mediate associations of volume and bouts of sedentary time with cardiometabolic health indicators in adolescents?
MetadataShow full item record
Â© 2017 The Authors. Obesity published by Wiley Periodicals, Inc. on behalf of The Obesity Society (TOS) Objective: Examine the mediating role of diet in the relationship between volume and duration of sedentary time with cardiometabolic health in adolescents. Methods: Adolescents (12-19 years) participating in the 2003/04 and 2005/06 U.S. National Health and Nutrition Examination Survey (NHANES) were examined. Cardiometabolic health indicators were body mass index z-scores (zBMI) (n = 1,797) and metabolic syndrome (MetS) (n = 812). An ActiGraph hip-worn accelerometer was used to derive total sedentary time and usual sedentary bout duration. Dietary intake was assessed using two 24-hour dietary recalls. Mediation analyses were conducted to examine five dietary mediators [total energy intake, discretionary foods, sugar-sweetened beverages (SSB), fruits and vegetables, and dietary quality] of the relationship between total sedentary time and usual sedentary bout duration with zBMI and MetS. Results: Total sedentary time was inversely associated with zBMI (Î² = âˆ’1.33; 95% CI âˆ’2.53 to âˆ’0.13) but attenuated after adjusting for moderate-to-vigorous physical activity. No significant associations were observed between usual sedentary bout duration with zBMI or either sedentary measure with MetS. None of the five dietary variables mediated any of the relationships examined. Conclusions: Further studies are needed to explore associations of specific time periods (e.g., after school) and bout durations with both cardiometabolic health indicators and dietary behaviors.
Showing items related by title, author, creator and subject.
Accelerometer-derived pattern of sedentary and physical activity time in persons with mobility disability: National Health and Nutrition Examination Survey 2003 to 2006Manns, P.; Ezeugwu, V.; Armijo-Olivo, S.; Vallance, J.; Healy, Genevieve (2015)Objectives: To describe objectively determined sedentary and activity outcomes (volume and pattern) and their associations with cardiometabolic risk biomarkers in individuals with and without mobility disability. Design: ...
Associations of sedentary time and patterns of sedentary time accumulation with health-related quality of life in colorectal cancer survivorsVan Roekel, E.; Winkler, E.; Bours, M.; Lynch, B.; Willems, P.; Meijer, K.; Kant, I.; Beets, G.; Sanduleanu, S.; Healy, Genevieve; Weijenberg, M. (2016)Sedentary behavior (sitting/lying at low energy expenditure while awake) is emerging as an important risk factor that may compromise the health-related quality of life (HRQoL) of colorectal cancer (CRC) survivors. We ...
Carson, V.; Wong, S.; Winkler, E.; Healy, Genevieve; Colley, R.; Tremblay, M. (2014)Objective: The aim of this study is to examine the associations of total sedentary time and patterns of sedentary time with cardiometabolic biomarkers in a large representative sample of Canadian adults. Methods: The study ...