Boudreaux Benjamin D, Schwartz Joseph E, Romero Emily K, Diaz Keith M
Department of Medicine, Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, New York, New York, USA.
Department of Psychiatry and Behavioral Health, Renaissance School of Medicine, Stony Brook, New York, USA.
Am J Hypertens. 2025 Feb 18;38(3):164-167. doi: 10.1093/ajh/hpae149.
The 24-h activity cycle (24H-ACT) (sleep, sedentary behavior, light physical activity, and moderate to vigorous physical activity) may have deleterious or beneficial associations with 24-h blood pressure (24H-BP).
Estimate the short-term associated changes in 24H-BP with acutely replacing 30 min/d from one behavior of the 24H-ACT to other behaviors in employed adults.
Participants (N = 659) wore an ambulatory blood pressure monitor and two accelerometers (waist and wrist) to measure 24H-BP and the 24H-ACT.
Replacing 30 min of sedentary behavior with 30 min of sleep was associated with lower 24-h mean systolic [ß = -0.32 mm Hg per 0.5 h (95% CI: -0.58, 0.06)] and diastolic [ß = -0.31 mm Hg per 0.5 h (95% CI: -0.50, -0.12)] blood pressure. Replacing 30 min of light physical activity with 30 min of sleep was associated with lower 24-h mean systolic [ß = -0.30 mm Hg per 0.5 h (95% CI: -0.62, 0.03,)] and diastolic blood pressure [ß = -0.34 mm Hg per 0.5 h (95% CI: -0.58, -0.11)]. No other time reallocations between 24H-ACT behaviors were associated with changes in 24H-BP.
Replacing time in sedentary behavior or light physical activity with sleep may provide small short-term reductions in that day's 24H-BP.
24小时活动周期（24H-ACT）（睡眠、久坐行为、轻度体力活动以及中度至剧烈体力活动）可能与24小时血压（24H-BP）存在有害或有益的关联。
评估在职成年人将24H-ACT中的一种行为每天急性替换30分钟为其他行为时，24H-BP的短期相关变化。
参与者（N = 659）佩戴动态血压监测仪和两个加速度计（腰部和腕部）以测量24H-BP和24H-ACT。
用30分钟睡眠替换30分钟久坐行为与24小时平均收缩压降低[每0.5小时β=-0.32毫米汞柱（95%CI：-0.58，0.06）]和舒张压降低[每0.5小时β=-0.31毫米汞柱（95%CI：-0.50，-0.12）]相关。用30分钟睡眠替换30分钟轻度体力活动与24小时平均收缩压降低[每0.5小时β=-0.30毫米汞柱（95%CI：-0.62，0.03）]和舒张压降低[每0.5小时β=-0.34毫米汞柱（95%CI：-0.58，-0.11）]相关。24H-ACT行为之间的其他时间重新分配均与24H-BP的变化无关。
用睡眠替换久坐行为或轻度体力活动的时间可能会使当日的24H-BP在短期内小幅降低。
