Atividade física e sedentarismo em escolares da rede pública e privada de ensino em São Luís

Abstract

OBJECTIVE:To analyze factors associated with physical activity and the mean time spent in some sedentary activities among school-aged children. METHODS:A cross-sectional study was carried out in a random sample of 592 schoolchildren aged nine to 16 years in 2005, in São Luís, Northern Brazil. Data were collected by means of a 24-Hour Physical Activity Recall Questionnaire, concerning demographic and socioeconomic variables, physical activities practiced and time spent in certain sedentary activities. Physical activities were classifi ed according to their metabolic equivalents (MET), and a physical activity index was estimated for each child. Sedentary lifestyle was estimated based on time spent watching television, playing videogames and on the computer/internet. Chi square test was used to compare proportions. Linear regression analysis was used to establish associations. Estimates were adjusted for the effect of the sampling design. RESULTS:The mean of the physical activity index was 605.73 MET-min/day (SD = 509.45). School children that were male (coeffi cient=134.57; 95%CI 50.77; 218.37), from public schools (coeffi cient.= 94.08; 95%CI 12.54; 175.62 and in the 5th to 7th grade (coeffi cient.=95.01; 95%CI 8.10;181.92 presented higher indices than females, children from private schools and in the 8th to the 9th grade (p<0,05). On average, students spent 2.66 hours/day in sedentary activities. Time spent in sedentary activities was signifi cantly lower for children aged nine to 11 years (coeffi cient.= -0,49 hr/day; 95%CI -0.88; -0.10) and in lower socioeconomic classes (coeffi cient.=-0.87; 95%CI -1.45;-0.30). Domestic chores (59.43%) and walking to school (58.43%) were the most common physical activities. CONCLUSIONS:Being female, in private schools and in the 8th to 9th grade were factors associated with lower levels of physical activity. Younger schoolchildren and those from low economic classes spent less time engaged in sedentary activities.

Avaliação da atividade física na promoção da saúde de adolescentes brasileiros: revisão sistemática

“…Com relação ao local de desenvolvimento da pesquisa, encontrou-se nas regiões Sul, Sudeste e Nordeste o maior número de estudos, sendo 41,6% (n=13) deles conduzidos no Sul (12)(13)(14)(15)(16) ; 41,6% (n=13) no Nordeste (17)(18)(19)(20)(21) ; seguidos de 12,8% (n=4) no Sudeste (22)(23)(24) e 3,1% (n=1) realizados com amostragens das regiões Sudeste e Sul (25) . Não foram encontrados estudos que tenham envolvido adolescentes das regiões Centro-Oeste e Norte, em função dos limites estabelecidos pelos critérios de inclusão.…”

Qualidade de vida relacionada à saúde de adolescentes escolares

“…Such findings in the 'Health and Physical Activity' realm for boys may be due to the existing different gender roles in Brazilian society. According to Oliveira et al 18 , boys' participation in intense physical activities and sports is more valued at a very early age, while social stimulus is lower among girls for this practice, with a greater focus on household chores and games that involve taking care of their home, manual activities, among others. Salles-Costa et al 19 also identified the presence of gender patterns in sports practice by administrative staff of a public university located in the city of Rio de Janeiro, noting the greater male participation in collective physical activities such as soccer, volleyball and tennis, and females more involved in individual activities (gymnastics, dances, walks).…”

Cárie dentária em adolescentes da cidade de Recife- PE

“…Podemos justificar essa análise de comportamento, uma elevada exposição às telas entre escolares de escolas particulares. Isso pode ser consequência de os estudantes de escolas privadas terem mais acesso aos avanços tecnológi-cos, como os elétricos e eletrônicos e, assim, ficarem mais tempo em uso desses equipamentos 19 . Um dos métodos mais utilizados para a manutenção de um constante nível de flúor no meio bucal é o creme dental.…”