Universidade Federal do Maranhão, Collective Health Postgraduate Program - São Luís (MA), Brazil.
Universidade de São Paulo, Ribeirão Preto Medical School - Ribeirão Preto (SP), Brazil.
Rev Bras Epidemiol. 2022 Sep 2;25:e220024. doi: 10.1590/1980-549720220024. eCollection 2022.
To describe the prevalence of physical activity among subjects from birth cohorts of three cities located in different regions of Brazil according to sociodemographic characteristics and sex, comparing the relationships within and between cohorts.
Cross-sectional study involving 12,724 adolescents and young adults who participated in five birth cohorts: Ribeirão Preto [1978/79 (37/39 years old in 2016) and 1994 (22 years in 2016)]; Pelotas [1982 (30 years in 2012) and 1993 (22 years in 2015)], and São Luís [1997/98 (18/19 years in 2016)]. Leisure-time physical activity was evaluated with questionnaires (insufficiently active: <150 min/week and active: ≥150 min/week) and moderate and vigorous physical activity (MVPA) was objectively measured by accelerometry. Those, in each city, were evaluated accordingly to skin color, socioeconomic classification, and study/work activities.
The prevalence of leisure-time physical activity ranged from 29.2% at 30 years old in Pelotas to 54.6% among adolescents from São Luís. The prevalence of leisure-time physical activity was higher among younger people (54.6% in São Luís 1997), while the same was not observed for total physical activity. MVPA (3rd tercile) was higher in the cohorts from Pelotas and São Luís. The prevalence of leisure-time physical activity and MVPA was higher in men. The data showed that the variation in physical activity was associated with sex and sociodemographic conditions in all cohorts.
Sociodemographic characteristics should be considered when promoting leisure-time physical activity and actions aimed at young people, and adults who are more socioeconomically vulnerable should be encouraged.
根据社会人口学特征和性别，描述来自巴西三个不同地区城市出生队列的受试者的身体活动流行率，并比较队列内和队列间的关系。
本横断面研究共纳入了 12724 名青少年和年轻成年人，他们参加了五个出生队列：里贝朗普雷图（1978/79 年队列，37/39 岁，2016 年；1994 年队列，22 岁，2016 年）；佩洛塔斯（1982 年队列，30 岁，2012 年；1993 年队列，22 岁，2015 年）和圣路易斯（1997/98 年队列，18/19 岁，2016 年）。通过问卷调查（不活跃：<150 分钟/周；活跃：≥150 分钟/周）评估闲暇时间身体活动，通过加速度计客观测量中等到剧烈体力活动（MVPA）。在每个城市，根据皮肤颜色、社会经济分类和学习/工作活动对这些人进行评估。
闲暇时间身体活动的流行率从佩洛塔斯 30 岁时的 29.2%到圣路易斯青少年的 54.6%不等。年轻人（圣路易斯 1997 年队列的 54.6%）的闲暇时间身体活动流行率较高，而总身体活动则不然。佩洛塔斯和圣路易斯队列的 MVPA（第三 tertile）较高。闲暇时间身体活动和 MVPA 的流行率在男性中较高。数据显示，所有队列中，身体活动的变化与性别和社会人口学条件有关。
在促进闲暇时间身体活动时，应考虑社会人口学特征，并鼓励社会经济地位较低的年轻人和成年人参与。
