Adair da Silva Lopes

Learn More
BACKGROUND Research has demonstrated that adolescents who actively commute have higher levels of physical activity (PA), which have declined precipitously over the past 30 years. The purpose of this study was to describe the prevalence of active commuting to school; and to identify barriers associated with active commuting. METHODS A cross-sectional study(More)
BACKGROUND The prevalence of obesity and elevated arterial pressure (AP) has increased in children and adolescents, whereas physical activity has decreased. OBJECTIVE To identify and correlate excess weight, body fat and elevated AP among active and passive students with the way they commute to school. METHODS One thousand five hundred and seventy(More)
BACKGROUND Economic and technological improvements can help increase screen time use among adolescents, but evidence in developing countries is scarce. The aim of this study was to examine changes in TV watching and computer/video game use patterns on week and weekend days after a decade (2001 and 2011), among students in Santa Catarina, southern Brazil. (More)
BACKGROUND Hypertension is related to increased body fat, which can be evaluated by anthropometric indicators. OBJECTIVE To determine the predictive power of anthropometric indicators and establish their cutoff points as discriminators of high blood pressure. METHODS Cross-sectional study with a sample of 660 adolescents aged 14 to 19 including 51.9%(More)
OBJECTIVE To analyze alcohol and tobacco use among Brazilian adolescents and identify higher-risk subgroups. METHODS A systematic review of the literature was conducted. Searches were performed using four databases (LILACS, MEDLINE /PubMed, Web of Science, and Google Scholar), specialized websites and the references cited in retrieved articles. The search(More)
OBJECTIVE To examine perceived poor sleep quality and its association with unhealthy lifestyle and self-reported morbidities among Brazilian workers. METHODS This study was part of a national survey involving 47,477 workers who received a questionnaire about lifestyle. Chi-square tests and logistic regression (OR=Odds Ratio) were conducted. RESULTS Poor(More)
This systematic review analyzed the prevalence of physical inactivity, sedentary behaviors and unhealthy eating habits among Brazilian adolescents. Searches were conducted in five databases (Lilacs, SciELO, Medline, Web of Science, and Google Scholar) and in the references cited in the articles retrieved. The literature search yielded 5,872 potentially(More)
To compare the prevalence of television (TV) watching and of computer/videogame use among high school students (15–19 years) from Southern Brazil between 2001 and 2011 and to identify associated socio-demographic factors. Panel studies were conducted with high school students in the state of Santa Catarina, Brazil, in 2001 (n = 5,028) and 2011 (n = 6,529).(More)
OBJECTIVE To estimate the proportion of physically active adolescents and identify associated factors. METHODS The sample was composed of 2,874 high school students (public and private schools) aged 14 to 19 years in the city of João Pessoa, Northeastern Brazil. Physical activity level was measured by means of a questionnaire and considered physically(More)
OBJECTIVES To evaluate test-retest reproducibility and the validity of a physical activity questionnaire for adolescents (adapted from Self-Administered Physical Activity Checklist). METHODS The test-retest reproducibility analysis was completed by 239 adolescents (average age 16 years, SD = 1.2; 56.4% female), and the validity analysis by 70 adolescents(More)