Este estudo objetivou verificar a associação entre os estágios de mudança de comportamento e o estado nutricional junto a 862 universitários. Para a classificação do estado nutricional, utilizaram-se pontos de corte para o índice de massa corporal, segundo padronização internacional. Os estágios de mudança de comportamento foram analisados individualmente e agrupados em ativos (ação, manutenção) e inativos (pré-contemplação, contemplação, preparação). Proporção mais elevada de universitários foi encontrada nos estágios contemplação (32%) e preparação (29,5%). Observou-se que 68,4% dos universitários eram inativos. As prevalências de baixo peso, sobrepeso e obesidade foram, respectivamente, de 9,5%, 12,4% e 1,7%. Os universitários do estágio Pré-contemplação apresentaram, respectivamente, 5,99 (IC95%: 2,29-15,68) e 7,98 (IC95%: 1,41-45,32) vezes mais chance de terem baixo peso e sobrepeso. Os resultados encontrados no presente estudo sugerem que a universidade tem papel fundamental na adoção de planos e ações voltados para o meio acadêmico, promovendo modificação no estilo de vida mediante programas de atividade física.
Objective. To evaluate the association between safety from crime and physical activity among older adults. Methods. A population-based survey including 1,656 older adults (60+ years) took place in Florianopolis, Brazil, in 2009-2010. Commuting and leisure time physical activity were assessed through the long version of the International Physical Activity Questionnaire. Perception of safety from crime was assessed using the Neighbourhood Environment Walkability Scale. Results. Perceiving the neighbourhood as safe during the day was related to a 25% increased likelihood of being active in leisure time (95% CI 1.02–1.53); general perception of safety was also associated with a 25% increase in the likelihood of being active in leisure time (95% CI 1.01–1.54). Street lighting was related to higher levels of commuting physical activity (prevalence ratio: 1.89; 95% CI 1.28–2.80). Conclusions. Safety investments are essential for promoting physical activity among older adults in Brazil.
OBJECTIVE:To estimate the prevalence of the practice of leisure-time physical activity in older adults and to analyze its association with environment perception. METHODS:Cross-sectional population study conducted from September 2009 to June 2010 with 1.656 individuals aged 60 years or older, living in the urban zone of the city of Florianópolis, Southern Brazil. Leisure-time physical activity was measured using the long version of the International Physical Activity Questionnaire. Environment perception variables were measured by means of a modifi ed version of the Neighborhood Environment Walkability Scale. Crude and adjusted analyzes were carried out using Poisson regression with a 5% signifi cance level. RESULTS:The prevalence of leisure-time physical activity was 29.7% (95% CI: 26.0; 33.3); 35.6% (95%CI: 29.7; 41.6) among men and 26.3% (95%CI: 23.1; 29.4) among women. The elderly who reported the existence of sidewalks, bike lanes, pedestrian paths and trails in the neighborhood, as well as those who reported receiving support from friends or neighbors to engage in physical activities, were more active in their leisure time. Concerning the infl uence of the climate, the elderly who reported that it was a barrier were rated as more active. CONCLUSIONS:The practice of leisure-time physical activity still has low prevalence among the elderly population of Florianópolis. Public spaces for the practice of physical activity and encouraging group activities may play a signifi cant role in the promotion of leisure-time physical activity in older adults.
OBJECTIVE:To estimate the prevalence of the practice of leisure-time physical activity in older adults and to analyze its association with environment perception. METHODS:Cross-sectional population study conducted from September 2009 to June 2010 with 1.656 individuals aged 60 years or older, living in the urban zone of the city of Florianópolis, Southern Brazil. Leisure-time physical activity was measured using the long version of the International Physical Activity Questionnaire. Environment perception variables were measured by means of a modifi ed version of the Neighborhood Environment Walkability Scale. Crude and adjusted analyzes were carried out using Poisson regression with a 5% signifi cance level. RESULTS:The prevalence of leisure-time physical activity was 29.7% (95% CI: 26.0; 33.3); 35.6% (95%CI: 29.7; 41.6) among men and 26.3% (95%CI: 23.1; 29.4) among women. The elderly who reported the existence of sidewalks, bike lanes, pedestrian paths and trails in the neighborhood, as well as those who reported receiving support from friends or neighbors to engage in physical activities, were more active in their leisure time. Concerning the infl uence of the climate, the elderly who reported that it was a barrier were rated as more active. CONCLUSIONS:The practice of leisure-time physical activity still has low prevalence among the elderly population of Florianópolis. Public spaces for the practice of physical activity and encouraging group activities may play a signifi cant role in the promotion of leisure-time physical activity in older adults.
Abstract-The purpose of this study was to investigate the stages of change in physical activity-related behavior (EMCRAF) and their association with gender and age. A total of 1108 high school students of both sexes, from Florianópolis, State of Santa Catarina, took part in this study. A questionnaire was used to assess EMCRAF. A higher proportion of boys were in the maintenance stage (48.1%) and a higher proportion of girls were in contemplation (24.7%) and pre-contemplation (6.4%) stages. Gender factor male and age range 17-18 were protective factors, which increased the likelihood of physically active behavior. Girls aged 17-18 were twice as likely to be in the contemplation stage than boys. It is important to expand knowledge about EMCRAF in adolescents and their associations with gender and age because a considerable number of behaviors established during this period of life can last into adulthood. Keywords: behavior, adolescence, physical activityResumo-"Estágios de mudança de comportamento relacionado à atividade física em adolescentes de uma capital brasileira." O objetivo do estudo foi investigar os estágios de mudança de comportamento relacionado a atividade física (EMCRAF) e sua associação com as variáveis sexo e idade. Participaram do estudo 1.108 estudantes do ensino médio do município de Florianópolis. Os EMCRAF foram avaliados usando um questionário. Uma maior proporção de meninos foi encontrada no estágio manutenção (48,1%) enquanto uma proporção maior de meninas estavam no estágio contemplação (24,7%) e pré-contemplação (6,4%). Os rapazes com 17-18 anos apresentaram fator de proteção para a presença de um comportamento ativo fisicamente. As garotas com 17-18 anos apresentaram probabilidade duas vezes maior de estar no estágio contemplação. O conhecimento sobre os EMCRAF em adolescentes e a sua associação com sexo e idade são importantes, pois um considerável número de comportamentos estabelecidos durante esse período pode persistir na idade adulta. Palavras-chaves: comportamento, adolescência, atividade físicaResumen-"Etapas de cambio en el comportamiento relacionado con la actividad física de los adolescentes de la capital brasileña." El objetivo de este estudio fue investigar las etapas de cambio de comportamiento relacionados con la actividad física (EMCRAF) y su asociación con sexo y la edad. El estudio incluyó a 1.108 estudiantes de secundaria en Florianópolis. El EMCRAF se evaluaron mediante un cuestionario. Una proporción mayor de niños se encuentran en la etapa de mantenimiento (48,1%), mientras que una proporción significativamente mayor de mujeres se encontraban en fase de contemplación (24,7%) y de precontemplación (6,4%). Los individuos con los 17-18 años demostró un factor de protección para la presencia de un comportamiento físicamente activo. Las niñas con 17-18 años mostraron el doble de probabilidades de estar en la etapa de contemplación. El conocimiento sobre el EMCRAF en adolescentes y su asociación con el sexo y
Analisou-se a associação entre o índice de massa corporal (IMC) e a pressão arterial (PA) em adolescentes do município de João Pessoa-PB, Brasil. A amostra foi composta por 303 rapazes e 379 moças, de 14 a 17 anos de idade. Foram coletadas informações sociodemográficas (sexo, idade, classe econômica, escolaridade do chefe de família), peso e estatura auto-referidos (determinação do IMC), medidas de PA sistólica e diastólica, atividade física, hábitos alimentares e fumo. A razão de prevalência (RP), com respectivos intervalos de confiança de 95% (IC 95%), a partir da regressão de Poisson, com variância robusta, foi utilizada como medida de associação. A prevalência sobrepeso/obesidade (excesso de peso) foi de 13,5% nos rapazes e 7,2% nas moças, e a de PA elevada foi de 32,4% nos rapazes e 26,6% nas moças. Adolescentes com excesso de peso apresentaram maior probabilidade de apresentar PA elevada (RP= 1,95 a 2,03) e hipertensão (RP= 4,22 a 4,60) quando comparados aos seus pares de baixo peso/peso normal. O excesso de peso parece ser um fator de risco em potencial para elevação da pressão arterial em adolescentes.
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