Graduate Program in Movement Sciences, Physical Education Department, Faculty of Science and Technology, São Paulo State University - UNESP Presidente Prudente, 19060-900, São Paulo, SP, Brazil.
Center of Clinical and Epidemiological Research, University Hospital, University of São Paulo - USP, 05403-000, São Paulo, SP, Brazil.
BMC Public Health. 2024 Jan 22;24(1):262. doi: 10.1186/s12889-024-17720-w.
The physical inactivity is a global health concern, so that recommendations on sufficient physical activity levels are elaborated worldwide, such as in Brazil. However, the Canadian 24-Hour Movement Guidelines were first in the world to consider time-specific recommendations for physical activity, sedentary behavior and sleep, which is still not developed for Latin-American population. The present study aimed to verify the adherence to Canadian 24-hour guidelines in a Brazilian inner city and to analyze its association with sociodemographic aspects.
A cross-sectional epidemiological study, with a sample composed by 250 adults (140 women), with a median age of 41.0 years. Objective measures of moderate-to-vigorous physical activity (MVPA) and sedentary behavior were collected by accelerometry. Sleep duration and sociodemographic aspects (ethnicity, gender, age, educational attainment and socioeconomic level) were obtained through a face-to-face questionnaire. Canadian 24-hour guidelines considered ≥ 150 min/week of MVPA, <8 h/day of sedentary behavior and daily sleep time between 7 and 9 h, being analyzed separately and in combination. Poisson regression with robust variance estimator was used to analyze the prevalence ratio (PR) of meeting the 24-hour guidelines according to the categories of sociodemographic variables, being performed by the software IBM SPSS version 25.0.
The complete 24-hour guidelines were met only by 24.4% of sample (n = 61). Sedentary behavior was the most met guideline (88%), followed by MVPA (56.8%) and sleep (53.2%), without significant difference according to sex. When compared to elderly participants, those participants in younger groups (18-39 years and 40-59 years) were more likely to meet MVPA guideline (PR = 2.51 [95%CI = 1.47; 4.28] and PR = 2.60 [95%CI = 1.52; 4.45], respectively), as well as the combination of MVPA and sedentary behavior (PR = 1.98 [95%CI = 1.13; 3.44] and PR = 2.17 [95%CI = 1.25; 3.79], respectively) and MVPA with the sleep guideline (PR = 2.39 [95%CI = 1.09; 5.27] only for 18-39 years group). Men were more likely to meet MVPA guideline than women (PR = 1.29 [95%CI = 1.04; 1.59]).
Younger aged and male adults were more likely to meet the Canadian 24-hour guidelines in a small Brazilian city. However, further studies with larger and representative samples of sociodemographic stratum are still needed.
身体活动不足是一个全球性的健康问题，因此全球范围内都制定了有关足够身体活动水平的建议，例如在巴西。然而，加拿大 24 小时运动指南是第一个考虑到身体活动、久坐行为和睡眠的特定时间建议的指南，这在拉丁美洲人口中尚未得到发展。本研究旨在验证在巴西内陆城市遵守加拿大 24 小时指南的情况，并分析其与社会人口统计学方面的关联。
这是一项横断面的流行病学研究，样本由 250 名成年人（140 名女性）组成，平均年龄为 41.0 岁。通过加速度计收集中等至剧烈身体活动（MVPA）和久坐行为的客观测量值。睡眠持续时间和社会人口统计学方面（种族、性别、年龄、教育程度和社会经济水平）通过面对面问卷获得。加拿大 24 小时指南分别考虑了每周至少 150 分钟的 MVPA、每天少于 8 小时的久坐行为和每天 7 至 9 小时的睡眠时间，并分别和组合进行分析。使用具有稳健方差估计的泊松回归分析了根据社会人口统计学变量类别符合 24 小时指南的患病率比（PR），使用 IBM SPSS 版本 25.0 软件进行分析。
只有 24.4%（n=61）的样本完全符合完整的 24 小时指南。久坐行为是最符合指南的（88%），其次是 MVPA（56.8%）和睡眠（53.2%），性别之间没有显著差异。与老年参与者相比，18-39 岁和 40-59 岁的年轻组参与者更有可能符合 MVPA 指南（PR=2.51[95%CI=1.47;4.28]和 PR=2.60[95%CI=1.52;4.45]），以及 MVPA 和久坐行为的组合（PR=1.98[95%CI=1.13;3.44]和 PR=2.17[95%CI=1.25;3.79]）以及 MVPA 与睡眠指南（仅 18-39 岁组 PR=2.39[95%CI=1.09;5.27]）。男性比女性更有可能符合 MVPA 指南（PR=1.29[95%CI=1.04;1.59]）。
在巴西的一个小城市，年龄较小和男性成年人更有可能符合加拿大 24 小时指南。然而，仍需要对更大和更具代表性的社会人口统计学阶层的样本进行进一步研究。
