Prevalência de inatividade física e fatores associados em adolescentes

Abstract

Objective. To estimate the prevalence of physical inactivity among adolescents (aged 14 to 18 years) in the municipality of Maringá, state of Paraná, Brazil and to explore its association with demographic, socioeconomic and behavioral variables and nutritional status indicators. MethOds. Cross-sectional study with a representative sample of 991 high school students (54.5% of girls) from both public and private high schools selected through multi-stage random sampling. Habitual physical activity was assessed using the International Physical Activity Questionnaire (IPAQ) adapted for adolescents, with the previous week taken as reference period. Physical inactivity was defined as <300 min/week of moderate and vigorous physical activity. Independent variables studied were: sex, age, type of school, socioeconomic level, smoking, sedentary behavior (≥4 h/day), nutritional status, and abdominal obesity. Results. The prevalence of physical inactivity among adolescents was 56.9% (girls= 57.9%, boys= 55.7%, p=0.46). Risk factors associated with physical inactivity were lower socioeconomic level, attendance to public schools and obesity. cOnclusiOn. A high prevalence of physical inactivity was found in the population investigated. The development of strategies to increase physical activity among adolescents are urgently needed. It can be achieved through content-based activities that promote a healthy lifestyle.

Prevalência de comportamentos de risco em adolescentes

“…Quanto aos fatores de risco que apresentaram menor prevalência entre os estudados, na ordem foram: a falta de atividade física, o não consumo de frutas e verduras, o uso de tabaco e drogas ilícitas. O hábito de realizar atividade fí-sica traz inúmeros benefícios para a saúde dos adolescentes, como o controle e manutenção do peso corporal e a redução de riscos cardiovasculares, devendo ser incentivada a prática regular de atividades físicas em todas as faixas etárias 41 . Esse comportamento de risco pode ser facilmente trabalhado no contexto escolar por meio do incentivo à participação em aulas de Educação Física.…”

Meta-analysis of the prevalence of physical inactivity among Brazilian adolescents

“…For example, some authors defined physical activity as the practice of sports outside school as well as going to school by bike or walking 26,27 . Other authors considered any kind of vigorous and/or moderate physical activity, inside or outside school, in a structured way or not 28,29,30,31,32,33,34 . The lack of a homogeneous definition of physical activity is an important limitation for pooling, or even comparing, results among different studies.…”

Prática de atividade física e fatores associados em adolescentes no Nordeste do Brasil

“…12 In Brazil, the proportion of adolescents who practice physical activities according to the current recommendations are: Curitiba (southern) 14 The higher prevalence of physical activity observed in the adolescents from João Pessoa may be due to the instrument used to measure physical activity in different contexts (leisure, school, travelling); sample characteristics (adolescents from public and private schools) and possibly to the characteristics of the city, which favor the practice of physical activity (weather, level of urbanization, infrastructure, traffi c).…”