Postgraduate Program in Cardiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Sports and Exercise Training Study Group, Hospital de Clínicas de Porto Alegre, RS, Brazil.
Cardiovascular Aging Research Laboratory, The University of Texas at Austin, Austin, TX, USA.
Complement Ther Med. 2020 Nov;54:102554. doi: 10.1016/j.ctim.2020.102554. Epub 2020 Sep 9.
To evaluate the effect of a single bout of power exercise training (PT) on office and ambulatory blood pressure (BP).
Twenty-four older adults with essential hypertension participated in two experimental sessions in a randomized order: the PT composed of 3 sets of 8-10 repetitions in 5 power training exercises and the non-exercise control at seated rest (Con). Both experimental sessions lasted 40 min. Office BP was measured continuously for 1 h in the laboratory and 24 h BP through ambulatory blood pressure monitoring.
Compared with Con, office systolic/diastolic BP decreased after PT (Systolic BP: 10 mmHg, p < 0.001; Diastolic BP: 4 mmHg, p = 0.015). A trend toward decrease (p = 0.06) was found in diastolic ambulatory BP during daytime (2 mmHg; p = 0.062) and nighttime (3 mmHg; p = 0.063) after PT. No differences were found between PT and Con sessions for systolic and mean ambulatory BP.
A single bout of PT decreases office BP but this hypotensive effect is not sustained under ambulatory conditions in older patients with essential hypertension.
评估单次力量训练（PT）对诊室和动态血压（BP）的影响。
24 名患有原发性高血压的老年人以随机顺序参加了两个实验：由 5 项力量训练中的 3 组 8-10 次重复组成的 PT，以及坐姿休息的非运动对照（Con）。两个实验都持续 40 分钟。在实验室中连续测量 1 小时的诊室血压，通过动态血压监测测量 24 小时血压。
与 Con 相比，PT 后诊室收缩压/舒张压降低（收缩压：10mmHg，p<0.001；舒张压：4mmHg，p=0.015）。PT 后日间（2mmHg；p=0.062）和夜间（3mmHg；p=0.063）的日间舒张压呈下降趋势（p=0.06）。PT 和 Con 之间的诊室和平均动态收缩压和平均动脉压没有差异。
单次 PT 可降低诊室血压，但在原发性高血压老年患者的动态条件下，这种降压作用不能持续。
