Institute for Community Medicine, Department of Social Medicine and Prevention, University Medicine Greifswald, Walther-Rathenau-Str. 48, 17475, Greifswald, Germany.
DZHK (German Centre for Cardiovascular Research), partner site Greifswald, Greifswald, Germany.
BMC Cardiovasc Disord. 2020 Jun 5;20(1):272. doi: 10.1186/s12872-020-01551-9.
Participation in an assessment may change health behavior. This "mere-measurement effect" may be used for prevention purposes. However, little is known about whether individuals' characteristics moderate the effect. The objective was to explore whether changes of physical activity (PA) and sedentary time (ST) after a cardiovascular assessment depend on sociodemographic variables and cardiometabolic risk factors.
A sample of n = 175 adults aged 40 to 65 received baseline assessment including self-administered PA and ST questionnaires and standardized measurement of blood pressure, waist circumference, and blood parameters. After 5 weeks, participants again reported PA and ST without any prior treatment or intervention. Linear regression models were used to analyze the dependence of five-week changes in PA and ST on baseline sociodemographic and cardiometabolic variables.
Men increased transport-related PA more than women (b = 9.3 MET-hours/week, P = .031). Men with higher triglycerides increased transport-related PA less than men with lower triglycerides (b = - 5.6 MET-hours/week, P = .043). Men with higher systolic blood pressure reduced ST more than those with lower systolic blood pressure (b = - 35.7 min/week, P = .028). However, this linear association ceased to exist at a level of approximately 145 mmHg (b of squared association = 1.0, P = .080). A similar relationship was found for glycated hemoglobin and ST.
The findings suggest that sex and cardiometabolic risk factors moderate mere-measurement effects on PA and ST. Researchers and practitioners using mere measurement for prevention purposes may address PA and ST according to these individual characteristics.
ClinicalTrials.govNCT02990039. Registered 7 December 2016. Retrospectively registered.
参与评估可能会改变健康行为。这种“纯粹测量效应”可用于预防目的。然而，人们对个体特征是否会调节这种效应知之甚少。本研究旨在探讨心血管评估后体力活动（PA）和久坐时间（ST）的变化是否取决于社会人口统计学变量和心血管代谢危险因素。
一项样本量为 175 名 40 至 65 岁成年人的研究，在基线评估时接受了自我管理的 PA 和 ST 问卷以及血压、腰围和血液参数的标准化测量。在 5 周后，参与者再次报告了 PA 和 ST，没有任何事先的治疗或干预。线性回归模型用于分析 PA 和 ST 五周变化与基线社会人口统计学和心血管代谢变量的依赖性。
男性比女性增加了更多的交通相关 PA（b=9.3 MET 小时/周，P=0.031）。三酰甘油较高的男性增加交通相关 PA 比三酰甘油较低的男性少（b=-5.6 MET 小时/周，P=0.043）。收缩压较高的男性比收缩压较低的男性减少 ST 更多（b=-35.7 分钟/周，P=0.028）。然而，当收缩压约为 145mmHg 时，这种线性关系就不再存在（平方关联 b=1.0，P=0.080）。类似的关系也存在于糖化血红蛋白和 ST 之间。
这些发现表明，性别和心血管代谢危险因素调节了 PA 和 ST 的纯粹测量效应。研究人员和实践者可以根据这些个体特征来解决 PA 和 ST 的问题，将纯粹的测量用于预防目的。
ClinicalTrials.govNCT02990039。2016 年 12 月 7 日注册。回顾性注册。
