Inatividade física e medidas antropométricas em escolares de Paranavaí, Paraná, Brasil

Abstract

OBJECTIVE: To investigate the association between physical inactivity and anthropometric measures in schoolchildren from Paranavaí-Parana, Brazil. METHODS: Cross-sectional survey, carried out in July and August 2013. Sample of 566 students (287 boys and 279 girls) from 6th to 9th grade, aged 10 to 14 years, from public and private schools of Paranavaí - PR, Southern Brazil. The variables analyzed were: time of weekly physical activity through a questionnaire (physical inactivity <300 minutes/week), body mass index (BMI) and waist circumference (WC). In the statistical analysis, the U Mann-Whitney and Student's t tests were used for comparison between genders. To identify factors associated with insufficient levels of physical activity, univariate and multivariate logistic regression analysis was applied and expressed in Odds ratio (OR) and 95% confidence interval (95%CI). RESULTS: There was an association between physical inactivity and anthropometric measurements for BMI (p<0.001) and WC (p<0.001), with a prevalence rate of 56.1% and 52.7% of inactive adolescents, respectively. In the multivariate analysis, there was significant association of physical inactivity and overweight (OR 1.8, 95%CI: 1.1-3.0) and with increased waist circumference (OR 2.8, 95%CI: 1.4-3.8). CONCLUSIONS: Inadequate levels of physical activity is a determining factor for overweight and abdominal adiposity. Accordingly, preventive measures should be taken, especially in schools, emphasizing the importance of exercise for body composition control and weight reduction.

Atividade física e tempo de tela em jovens de uma cidade de médio porte do Sul do Brasil

“…A study describing adolescents’ physical activity levels with data from 32 countries concluded that the majority of adolescents do not meet current recommendations of physical activity 4. In Brazil, high levels of physical inactivity in children and adolescents were reported in the southern5 and northeast regions 6…”

“…Some previous Brazilian studies involving physical inactivity and sedentary behaviour focused on investigating adolescents5 , 6 but did not stratify subgroups i.e. age and gender comparisons as recommended elsewhere 7.…”

Associação de indicadores antropométricos e pressão arterial com a relação cintura/estatura em escolares

“…Quando crianças foram avaliadas pelo parâmetro CC no Canadá e no Brasil, observou-se que o percentual de crianças que apresentaram CC elevada indicou aumento de risco cardiovascular em ambos os sexos, porém, foi mais prevalente no sexo masculino (19)(20)(21) . As médias de CC encontradas no presente estudo foram também significativamente superiores no sexo masculino, resultados similares ao encontrados por outros estudos (22,23) .…”

“…No presente estudo, a prevalência da PAS e PAD com valores acima do normal foi de 12,8% e 5,9%, respectivamente, índices inferiores aos encontrados por um estudo que apresentou 45% de elevação para PAD e 29% de elevação para PAS (27) , e superior a outro estudo no qual a prevalência foi de 4 % para PAS e 3% para PAD (28) . Estudos demonstraram que as médias de PAS e PAD foram superiores no sexo masculino (20,29) , assim como o atual estudo.…”

Características antropométricas, capacidade funcional de exercício e atividade física de crianças vítimas de queimaduras

“…According to the World Health Organization, physical activity is any body movement produced by skeletal muscles that requires energy expenditure, such as walking, cycling, and playing sports, and physical inactivity is identified as the fourth risk factor for global mortality 13 . Physical inactivity in schoolchildren is a determining factor for overweight; thus, access to physical activity is regarded as a health strategy to control obesity, which is currently considered a global public health problem 14,15 . The most active children improve their cardiorespiratory and muscle strength capacity and reduce symptoms of anxiety and depression 16 .…”