Prevalência de sedentarismo em adolescentes escolares de uma capital brasileira

• Ano de defesa: 2013
• Autor(a) principal: Nascente, Flávia Miquetichuc Nogueira
• Orientador(a): Jardim, Paulo César Brandão Veiga
• Banca de defesa: Jardim, Paulo César Brandão Veiga, Amodeo, Celso, Sousa, Ana Luiza Lima, Vitorino, Priscila Valverde de Oliveira, Souza, Weimar Kunz Sebba Barroso de
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Ciências da Saúde (FM)
• Departamento: Faculdade de Medicina - FM (RG)
• País: Brasil
• Palavras-chave em Português: Adolescente; Atividade motora; Sedentarismo; Pressão arterial
• Palavras-chave em Inglês: Adolescent; Motor activity; Sedentary lifestyle; Blood pressure
• Área do conhecimento CNPq: CIENCIAS DA SAUDE
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/3361

Introduction: Adolescence is a stage of transition from childhood to adulthood, marked by changes and exposure to different situations and health risks. Sedentary lifestyle is a risk factor for various diseases and knowing its prevalence and associated factors may help in combating and preventing diseases and promoting physical activity. Objective: To determine the prevalence of sedentary lifestyle and physical activity levels and associated factors in adolescents aged 14 to 18 enrolled in public and private school system of Goiania-Goias. Methodology: Cross-sectional study with a representative sample of adolescents. Physical activity was measured by the International Physical Activity Questionnaire _IPAQ_ (insufficiently active, sufficiently active and very active). Sedentary lifestyle was defined according to the World Health Organization as a moderate and/or vigorous physical activity expenditure less than 300 minutes a week. The independent variables: gender, age, skin color, smoking, alcohol consumption in the previous 30 days, socioeconomic status, body mass index, waist circumference, systolic blood pressure, diastolic blood pressure, heart rate, pulse pressure and caloric expenditure. To determine the factors associated with sedentary lifestyle the chi-square and Poisson regression test were applied, whereas for comparison of means the Student t test, ANOVA and Kruskal Wallis test were used, considering a significance level of p<0.05. Results: The sample consisted of 862 with mean age of 15.41.1. Prevalence of the female gender (52.8%), with the majority in the age group of 14 and 15 (52.2%). For the skin color 51.2% related being “white”. In relation to the socioeconomic classification 52.5% from de students belonged to the Class C. Most of the adolescents was from public schools (69.1%). Smoking was present in 1.6% and alcohol consumption in 72.2% of the sample. Altered Blood pressure (17.4%), altered waist circumference (14.0%) and overweight (20.9%). Prevalence of sedentary lifestyle was 66.8% (95% CI: 63.5-69.9). The male adolescents were more physically active than the females ones (78.0% vs. 54.3%, p<0.001). According to the questionnaire used: 35.7% (n=308) were insufficiently active, 36.7% (n=316) sufficiently active and 27.6% (n=238) very active. The male gender presented lower levels of diastolic blood pressure (66.9 mmHg, p=0.025) and heart rate (72.7 mmHg, p=0.038) when associated with higher levels of physical activity. In females there were no significant associations among physical activity level and the independent variables (p>0.05). Conclusion: The majority of the adolescents were classified as sedentary. The male gender was more active than the female one. In the students from the male gender the physical activity levels were inversely associated with the diastolic blood pressure and the heart rate.