-Physical activity (PA) in children has a decisive role in motor development and prevention of childhood obesity. The available evidence suggests that there is high prevalence of low levels of PA in children, but little is known about the level of PA in preschool children. The objective of this study was to identify the prevalence and the factors associated with low levels of PA in preschool children. This was a cross-sectional study performed in private schools in the municipality of Olinda (state of Pernambuco), with data collection through parent's face-to-face interviews. The study included 265 children (54.3% girls) with mean age of 4.9 years (SD=0.8). Children who did not perform at least 60 minutes/day of outdoors physical activities were considered exposed to low levels of PA. Data analysis was performed by logistic regression considering low level of PA as the outcome. The results showed that 65.3% (95%CI: 9.4-70.8) of children were classified as exposed to 'low level of PA' . Analysis showed that higher parental education (OR=2.41; 95%CI: 1.13-5.10), lack of space for playing at home (OR=2.36; 95%CI: 1.17-4.78), and attending school in the afternoon (OR=2.92, 95%CI 1.55-5.49) or full-time (OR=57.1, 95%CI 6.57-496.2) were associated with low levels of PA. Preschoolers from families with higher number of children had lower likelihood of low level of PA (OR=0.49; 95%CI 0.26-0.93). It can be concluded that the proportion of children exposed to low levels of PA is high compared to the results of similar studies and that parental and environmental factors are associated with physical activity level in preschool-aged children. Key words: Epidemiology; Motor activity; Preschool. 65,3% (IC95%: 9,8) (OR=2,41; IC95%: 1,10), falta de espaços para jogos e brincadeiras na residĂȘncia (OR=2,36; IC95%: 1,78) e estudar em perĂodo vespertino (OR=2,92; IC95%: 1,49) ou integral (OR=57,1; IC95%: 6,2) foram fatores associados a baixo nĂvel de AF. Maior nĂșmero de filhos foi identificado como fator de proteção em relação a baixo nĂvel de AF (OR=0,49; IC95%: 0,93
Resumo -A prĂĄtica de atividades fĂsicas (AF) na infĂąncia tem papel decisivo no desenvolvimento motor e prevenção da obesidade infantil. EvidĂȘncias disponĂveis sugerem que hĂĄ elevada prevalĂȘncia de baixos nĂveis de AF em crianças, mas pouco se conhece sobre o nĂvel de AF em prĂ©-escolares. O objetivo do estudo foi identificar a prevalĂȘncia e os fatores associados ao baixo nĂvel de AF em prĂ©-escolares. Estudo transversal realizado em escolas privadas da Cidade de Olinda (PE), com coleta de dados mediante entrevista "face a face" com os pais das crianças. Participaram do estudo 265 crianças (54,3% meninas) com idade mĂ©dia de 4,9 anos (DP=0,8). Foram consideradas expostas a baixo nĂvel de AF as crianças que nĂŁo realizavam, no mĂnimo, 60 minutos/dia de AF ao ar livre. A anĂĄlise dos dados foi efetuada mediante regressĂŁo logĂstica, considerando o baixo nĂvel de AF como desfecho. Os resultados mostram que