B-32 Free Communication/Poster - Epidemiology of Physical Activity and Health in Youth Wednesday, June 1, 2016, 1: 00 PM - 6: 00 PM Room: Exhibit Hall A/B
It has been suggested that behavioural and biological factors are linked to metabolic syndrome (MS) in children. Given the recent population increase on MS in youth, it is useful to explore the effects of these factors to provide better information when designing interventions.
PURPOSE: To identify behavioural and biological correlates of MS in Portuguese children.
METHODS: Body mass index (BMI), maturity offset, MS markers (fasting glucose, triglycerides, HDL-cholesterol, waist circumference, and systolic blood pressure), light (LPA) and moderate-to-vigorous (MVPA) physical activity, and sedentariness (SED) during school-days and weekend, week mean sleep time (ST), and muscle strength (MStg) were collected in 389 children (mean age 10.5 years; 219 girls) from 23 schools located in Porto, Portugal. MVPA, LPA, SED and ST were measured with the GT3X+ Actigraph accelerometer with at least 4 days (at least one weekend day) of at least 10 hours/day of monitoring. MStg was measured by a handgrip test, IOTF cut points were used to classify children as normal-weight or overweight/obese, and children were classified as having MS (≥3 MS indicators at risk) or not. Binary logistic regression was used to identify significant correlates of MS.
RESULTS: Boys (OR: 7.5; 95%CI: 1.8-31.7), children ahead in their biological maturation (OR: 5.6; 95%CI: 1.9-16.5), and those overweight/obese (OR: 4.8; 95%CI: 1.7-14.0) were more likely to have MS; on the other hand, children who spent more time in MVPA during school-days (OR: 0.97; 95%CI: 0.94-0.99) had a slightly lower chance of having MS. No significant effect was found for MStg, ST, LPA, SED, and MVPA during the weekend.
CONCLUSIONS: Sex, biological maturation, BMI, and MVPA are significant correlates of MS among Portuguese children. These results reinforce that biological and behavioural characteristics play important roles in children’s health.