BACKGROUND Blood pressure (BP)-lowering effects of structured exercise are well-established. Effects of 24-hour movement behaviors captured in free-living settings have received less attention. This cross-sectional study investigated associations between a 24-hour behavior composition comprising 6 parts (sleeping, sedentary behavior, standing, slow walking, fast walking, and combined exercise-like activity [eg, running and cycling]) and systolic BP (SBP) and diastolic BP (DBP). METHODS Data from thigh-worn accelerometers and BP measurements were collected from 6 cohorts in the Prospective Physical Activity, Sitting and Sleep consortium (ProPASS) (n=14 761; mean±SD, 54.2±9.6 years). Individual participant analysis using compositional data analysis was conducted with adjustments for relevant harmonized covariates. Based on the average sample composition, reallocation plots examined estimated BP reductions through behavioral replacement; the theoretical benefits of optimal (ie, clinically meaningful improvement in SBP [2 mm Hg] or DBP [1 mm Hg]) and minimal (ie, 5-minute reallocation) behavioral replacements were identified. RESULTS The average 24-hour composition consisted of sleeping (7.13±1.19 hours), sedentary behavior (10.7±1.9 hours), standing (3.2±1.1 hours), slow walking (1.6±0.6 hours), fast walking (1.1±0.5 hours), and exercise-like activity (16.0±16.3 minutes). More time spent exercising or sleeping, relative to other behaviors, was associated with lower BP. An additional 5 minutes of exercise-like activity was associated with estimated reductions of -0.68 mm Hg (95% CI, -0.15, -1.21) SBP and -0.54 mm Hg (95% CI, -0.19, 0.89) DBP. Clinically meaningful improvements in SBP and DBP were estimated after 20 to 27 minutes and 10 to 15 minutes of reallocation of time in other behaviors into additional exercise. Although more time spent being sedentary was adversely associated with SBP and DBP, there was minimal impact of standing or walking. CONCLUSIONS Study findings reiterate the importance of exercise for BP control, suggesting that small additional amounts of exercise are associated with lower BP in a free-living setting.

中文翻译：

---

设备测量的 24 小时运动行为和血压：ProPASS 联盟中的 6 部分组成个人参与者数据分析。


背景 结构化运动的降血压 （BP） 效果是公认的。在自由生活环境中捕捉的 24 小时运动行为的影响受到的关注较少。这项横断面研究调查了 24 小时行为构成包括 6 个部分 （睡眠、久坐行为、站立、慢走、快走和联合运动样活动 [例如，跑步和骑自行车]）与收缩压 （SBP） 和舒张压 （DBP） 之间的关联。方法 从前瞻性身体活动、坐姿和睡眠联盟 （ProPASS） 的 6 个队列中收集来自大腿佩戴式加速度计和 BP 测量值的数据 （n=14 761;平均值±SD，54.2±9.6 岁）。使用成分数据分析进行个体参与者分析，并对相关的协调协变量进行调整。根据平均样本组成，重新分配图检查了通过行为替代估计的血压降低;确定了最佳 （即 SBP [2 mm Hg] 或 DBP [1 mm Hg] 的临床意义改善）和最小 （即 5 分钟重新分配） 行为替代的理论益处。结果 平均 24 小时组成包括睡眠 （7.13±1.19 小时）、久坐行为 （10.7±1.9 小时）、站立 （3.2±1.1 小时）、慢走 （1.6±0.6 小时）、快走 （1.1±0.5 小时） 和类似运动的活动 （16.0±16.3 分钟）。相对于其他行为，花在运动或睡眠上的时间更多与较低的血压有关。额外 5 分钟的运动样活动与估计降低 -0.68 mm Hg （95% CI， -0.15， -1.21） SBP 和 -0.54 mm Hg （95% CI， -0.19， 0.89） DBP 相关。 在将其他行为的时间重新分配到额外运动中 20 至 27 分钟和 10 至 15 分钟后，估计 SBP 和 DBP 的临床意义改善。尽管久坐的时间增加与 SBP 和 DBP 呈负相关，但站立或行走的影响很小。结论 研究结果重申了运动对血压控制的重要性，表明在自由生活环境中，少量的额外运动与较低的血压相关。