Physical activity, sedentariness and metabolic risk in Portuguese children
ISPAH ePoster Library. Natacha Gomes T. Oct 16, 2018; 225535; 131
Thayse Natacha Gomes
Thayse Natacha Gomes
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Abstract
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Abstract It has been suggested that physical activity (PA) and sedentariness are associated to metabolic risk (MR) factors in children. Purpose: To study the relationship between different PA intensities [moderate to vigorous PA (MVPA) and light PA (LPA)] and sedentariness with children MR. Methods:<\b>
The sample comprises 388 Portuguese children, from both sexes (219 girls; mean age 10.5 years). MR indicators included fasting glucose, triglycerides, HDL-cholesterol, as well as waist circumference and mean arterial blood pressure; MR score (zMR), adjusted for maturity offset, was computed. MVPA, LPA, and sedentariness were measured with the GT3X+ Actigraph accelerometer with at least 4 days (with one weekend day) of at least 10 hours/day of monitoring. Linear regression, by sex, was used to identify correlates of zMR. Results:<\b>
In girls, none of the variables included in the model were significantly related to zMR (p>0.05); however, in boys a negative and significant effect of MVPA was observed (b=-0.026; p=0.011), where those who spent more time in MVPA had a better zMR profile, but no significant effect was observed for LPA or sedentariness. Conclusion:<\b>
The role of PA on MR in children differs according to gender. In girls no significant link was observed, suggesting that other factors (namely biological and nutritional) may be associated with girls’ metabolic health. In boys MVPA is a relevant predictor in their metabolic health, suggesting that MVPA should be promoted. External funding details Study founded by The Portuguese Foundation of Science and Technology (individual grant SFRH/BOD/1231452016).
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