Purpose: The associations between work time, leisure-time, and non-workday physical activity (PA) and sedentary behavior (SED) and 24 h ambulatory blood pressure (BP) are not well known. Therefore, the aim of this study was to evaluate the associations between domain-specific activity behavior and 24 h blood pressure.Methods: A hundred and fifty-six aging workers (mean age 62.4 [SD 1.0] years, BMI 26.2 [4.5] kg/m2, 84 % women, 75 % non-manual occupation) from the Finnish Retirement and Aging study (FIREA) were included. Standing, light and moderate-to-vigorous PA (LPA and MVPA, respectively), and SED were measured using thigh-worn accelerometers and work time, leisure-time, and non-workdays were distinguished using a diary. Ambulatory 24 h BP was analyzed as mean daytime and nighttime systolic and diastolic BP, and the nocturnal BP dipping percentage was calculated. Associations were examined with linear regression analysis adjusting for age, sex, occupation, work time mode, job strain, BMI, BP medication, and accelerometer wear time.Results: Higher work time SED associated with lower nighttime diastolic BP (B = -0.92, 95% CI -1.83, -0.01). In addition, higher work time standing associated with higher daytime diastolic BP (B = 1.34, 95% CI 0.03, 2.65) and higher work time LPA with less diastolic BP dipping (B = -3.57, 95% CI -6.80, -0.34). MVPA in any domain was not associated with ambulatory BP.Conclusions: Higher work time SED associated with a more favorable diastolic BP, and higher work time PA associated with more adverse diastolic BP among aging workers. In conclusion, work time, rather than leisure time or non-workday, activity behavior seems to associate with 24 h ambulatory BP.

中文翻译：

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老年工人闲暇和工作时间活动行为与 24 小时动态血压之间的关联。


目的：工作时间、闲暇时间和非工作日身体活动 （PA） 与久坐行为 （SED） 和 24 小时动态血压 （BP） 之间的关联尚不清楚。因此，本研究的目的是评估特定域活动行为与 24 h 血压之间的关联。方法：包括来自芬兰退休和老龄化研究 （FIREA） 的 156 名老龄工人（平均年龄 62.4 [SD 1.0] 岁，BMI 26.2 [4.5] kg/m2,84% 女性，75% 非体力劳动职业）。使用大腿佩戴式加速度计测量站立、轻度和中度至剧烈 PA （分别为 LPA 和 MVPA） 和 SED，并使用日记区分工作时间、闲暇时间和非工作日。动态 24 h 血压分析为平均白天和夜间收缩压和舒张压，并计算夜间血压下降百分比。通过线性回归分析检查相关性，调整年龄、性别、职业、工作时间模式、工作压力、BMI、BP 药物和加速度计佩戴时间。结果： 较高的工作时间 SED 与较低的夜间舒张压相关 （B = -0.92,95% CI -1.83，-0.01）。此外，较高的工作时间与较高的日间舒张压相关 （B = 1.34， 95% CI 0.03， 2.65） 和较高的工作时间 LPA 与较低的舒张压下降相关 （B = -3.57， 95% CI -6.80， -0.34）。任何领域的 MVPA 均不与动态血压相关。结论： 在老年工人中，较高的工作时间 SED 与更有利的舒张压相关，较高的工作时间 PA 与更不利的舒张压相关。总之，工作时间，而不是闲暇时间或非工作日，活动行为似乎与 24 小时动态血压有关。