Continuous metabolic risk score in schoolchildren with different levels of cardiorespiratory fitness
Abstract
Objective: To compare the metabolic risk score in schoolchildren with different levels of cardiorespiratory fitness (CRF).
Method: A retrospective cross-sectional study carried out with schoolchildren in the municipality of Santa Cruz do Sul - RS. Students from 25 public and private schools were invited, who were aged between 7 and 17 years with an authorization signed by parents/guardians. The final sample consisted of 1250 children and adolescents. Blood sampling was performed to analyze the lipid profile. Blood pressure, waist circumference (WC) and CRF were evaluated. The continuous metabolic risk score (cMetS) was calculated by summing the Z score of the following parameters: WC, systolic blood pressure, triglycerides, total cholesterol, LDL cholesterol and HDL cholesterol.
Results: In both sexes, a decrease of cMetS was observed with the increase of CRF levels. Thus, schoolchildren in the 5th quintile, who have higher levels of CRF, have lower metabolic risk. Among boys, there was a significant difference between the 1st quintile to 2nd quintile (p=0.037), to 4th (p=0.009) and 5th quintile of CRF (p<0.001). Among girls, cMetS was significantly different in the comparison of the 1st quintile to the 5th quintile (p=0.018) of CRF.
Conclusion: Schoolchildren with low levels of CRF have higher metabolic risk scores, both among boys and girls.