Department of Epidemiology and Biostatistics, School of Health Sciences, Wuhan University, Wuhan 430071, China.
Information Management and Information System, School of Medical and Health Management, Huazhong University of Science and Technology, Wuhan 430071, China.
Int J Environ Res Public Health. 2020 Oct 25;17(21):7803. doi: 10.3390/ijerph17217803.
Diabetes and physical inactivity are prevalent worldwide. Risk of diabetes is known to be related with insufficient physical activity (PA), but associations with the respective dimensions of PA is unclear. To describe the patterns of physical activity among Chinese middle- and older-aged individuals and figure out their associations with diabetes risk in different dimensions. Extracting self-reported data from China Health and Retirement Longitudinal Study (CHARLS, 2015), this study included 6196 participants. Multivariate logistic regression was conducted to determine the association between diabetes risk and PA dimensions such as intensity, frequency, duration, and volume. Concerning frequency, lower diabetes risk was associated with performing vigorous PA at any frequency overall. For duration, smaller odds of diabetes were observed in performing vigorous PA 2-4 h/day (OR 0.46, 95%CI 0.30 to 0.71), moderate PA ≥4 h/day (OR 0.59, 95%CI 0.42 to 0.82) and light PA ≥4 h/day (OR 0.59, 95%CI 0.41 to 0.85) overall. For volume, lower diabetes risk was associated with performing moderate-to-vigorous PA (MVPA) ≥2250 METs/week (OR 0.58, 95%CI 0.42 to 0.81) in middle-aged group (45-64 years), whereas no significant associations between MVPA and diabetes risk were found in older aged group (≥65 years). Our results revealed that physical inactivity is prevalent in China, with a greater proportion in the diabetes group. Lower risk of diabetes was associated with higher frequency, longer duration and longer volume of PA at higher intensity in middle-aged respondents and similar associations at lower intensity for the older adults. Additionally, further well-designed prospective studies are needed to confirm our findings.
糖尿病和身体活动不足在全球范围内普遍存在。已知糖尿病的风险与身体活动不足（PA）有关，但与 PA 的各个维度的关联尚不清楚。本研究旨在描述中国中老年人群的身体活动模式，并探讨不同维度的身体活动与糖尿病风险之间的关系。本研究从中国健康与养老追踪调查（CHARLS，2015 年）中提取了自我报告数据，共纳入 6196 名参与者。采用多变量逻辑回归分析评估糖尿病风险与 PA 强度、频率、持续时间和量等维度之间的关系。关于频率，无论总体还是分性别，较低的糖尿病风险与任何频率下进行剧烈 PA 相关。关于持续时间，每天进行剧烈 PA2-4 小时（OR0.46，95%CI0.30-0.71）、中度 PA≥4 小时（OR0.59，95%CI0.42-0.82）和轻 PA≥4 小时（OR0.59，95%CI0.41-0.85）与较低的糖尿病风险相关。关于量，每天进行中高强度 PA（MVPA）≥2250METs/周（OR0.58，95%CI0.42-0.81）与较低的糖尿病风险相关，仅在中年组（45-64 岁）中观察到这种关联，而在老年组（≥65 岁）中未发现 MVPA 与糖尿病风险之间存在显著关联。本研究结果表明，中国人群普遍存在身体活动不足的情况，且糖尿病患者中更为常见。在中年人群中，更高的频率、更长的持续时间和更高强度的身体活动与较低的糖尿病风险相关，而在老年人群中，较低强度的身体活动也与较低的糖尿病风险相关。此外，还需要进一步进行精心设计的前瞻性研究来验证我们的发现。
