Double Jeopardy: Metabolic Syndrome Leads to Increased Sedentary Behavior in Peri-Pubertal Minority Females

in Pediatric Exercise Science
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While most studies have focused on investigating the preventive effects of physical activity on metabolic risk, the longitudinal impacts of metabolic syndrome (MetS) on activity levels is poorly understood. This study aims to examine the influence of MetS on initial activity levels and the trajectory of activity levels in Latina and African American female children over 12 months (n = 55, 9 ± 1 years). Metabolic measures, including fat and lean tissue mass by BodPod, fasting glucose, lipids, blood pressure, and waist circumference, were collected at baseline. Moderate-to-vigorous physical activity and sedentary behavior by accelerometry were collected on a quarterly basis. There were no significant differences in either initial activity levels by MetS status (Moderate-to-vigorous physical activity: 33 ± 12 mins/day for MetS, 48 ± 28 mins/day for Non-MetS, p = .12; sedentary behavior: 408 ± 57 mins/day for MetS, 421 ± 72 mins/day for Non-MetS, p = .67). Longitudinal declines in moderate-to-vigorous physical activity (p = .038) and increases in sedentary behavior (p = .003) were found. Daily sedentary behavior increased by 82.64 more minutes in youth with MetS than in those without over one year (p = .015). This study yields the first evidence of the adverse effect of MetS on sedentary behavior. Targeted intervention strategies to reduce progressive sedentariness evident in minority youth with MetS are warranted.

Hsu is with the Dept. of Hospital and Health Care Administration, Chia Nan University of Pharmacy & Science, Tainan, Taiwan. Chou is with the Dept. of Preventive Medicine, and Spruijt-Metz the Dornsife Center for Economic and Social Research and Dept. of Preventive Medicine, University of Southern California, Los Angeles, CA. Belcher is with the National Cancer Institute, National Institutes of Health, Bethesda, MD. Nguyen-Rodriguez is with the Dept. of Health Science, California State University, Long Beach, CA. Weigensberg is with the Dept. of Pediatrics, Los Angeles County+University of Southern California Medical Center, Los Angeles, CA. McClain is with the Prevention Research Center, Stanford University School of Medicine, Stanford, CA. Address author correspondence to Ya-Wen Hsu at janiceywhsu@gmail.com.