Risco cardiovascular e prática de atividade física em crian？as e adolescentes de Muzambinho/MG: influência do gênero e da idade

introduction and objective: cardiovascular disease begins at infancy and it has been linked to the presence of cardiovascular risk factors (crf). prevalence of these factors varies a lot among different brazilian populations and has been mostly studied in big and medium size cities. thus, this study assessed the prevalence of crf and physical activity (pa) in children and adolescents from muzambinho, a small city in the state of minas gerais. methods: 205 subjects (7 to 18 years - 108 males) were studied. body weight and height, glycemia, cholesterolemia, blood pressure (bp), and pa were measured. comparisons were made by qui-square test. results: obesity and altered values of bp, glycemia, and cholesterolemia were found, respectively, in 19, 11, 5 and 15% of the subjects. there was no difference between genders, while the prevalence of smokers, drinkers, altered bp, and inactivity increased with age. seventy-nine percent of the subjects practiced community pa; 10% occupational pa; 97% physical education classes; 72% pa during school recess; and 90% leisure time pa. ninety-two percent of them were active. occupational pa was higher in girls, and increased with age in boys. leisure time and during school recess pa decreased with age in both genders. conclusion: except for physical inactivity, prevalence of crf was high, did not differ between genders, and increased with age. high levels of all kinds of pa were found; they differed between genders, and decreased with age.