Prevalência do baixo nível de atividade física e sua associação no comprometimento da mobilidade e risco para óbito em idosos residentes no município de São Paulo / Prevalence of low levels of physical activity and its association with impaired mobility and the risk of death in elderly individuals living in São Paulo

RESUMO

Introdução: Em 2008, o baixo nível de atividade física (< 30 min de atividade moderada-vigorosa por dia) foi responsável por 9 por cento da ocorrência de óbito no mundo. Além disso, está associado ao comprometimento de mobilidade em idosos com 80 anos e mais. No entanto, devido a dificuldades metodológicas, poucos são os estudos populacionais que realizaram a associação entre baixo nível de atividade física e comprometimento de mobilidade e risco para óbito, utilizando método objetivo para avaliação da atividade física, e ainda não se tem conhecimento de pesquisas que verificaram essa associação na América Latina. Objetivo: Identificar a prevalência do baixo nível de atividade física e sua associação com o comprometimento da mobilidade e risco para óbito em idosos com 65 anos e mais residentes no município de São Paulo em 2010. Métodos: Estudo exploratório e quantitativo de base populacional, que utilizou a base de dados do Estudo SABE de 2010 e ocorrência de óbito em 2014. Foram avaliados 599 indivíduos em 2010

ABSTRACT

Introduction: In 2008, a low level of physical activity (<30 min of moderate-vigorous activity per day) accounted for 9 per cent of the occurrences of death in the world. In addition, it is associated with impaired mobility in the elderly, aged 80 and over. However, due to methodological difficulties, there are few population-based studies carried out on the association between low levels of physical activity and impaired mobility and the risk of death, using an objective method to evaluate physical activity; and to date there are no known studies which have verified this association in Latin America. Objective: To identify the prevalence of low levels of physical activity and its association with impaired mobility and the risk of death in elderly individuals aged 65 and over living in the city of São Paulo in 2010. Methods: This was an exploratory and quantitative population-based study which used the database of the SABE study 2010 and the occurrences of death in 2014; 599 individuals were evaluated in 2010. The level of physical activity was analyzed in two ways 1) low level of physical activity (<30 minutes of moderate and-or vigorous activity daily) and high level of physical activity (> 30 minutes moderate and-or vigorous activity daily); and 2) the sample was divided into tertiles according to the counts per minute, and grouped into two groups, the elderly in the lowest tertile classified as low level of physical activity and the elderly in the remaining two tertiles as intermediate-high level physical activity. Hierarchical logistic regression was used to 1) identify the variables associated with low levels of physical activity; 2) analyze the association between low levels of physical activity and impaired mobility; and 3) estimate the risk of death in elderly individuals with low levels of physical activity