Brito Aline de F, de Oliveira Caio Victor C, Santos Maria do Socorro B, Santos Amilton da C
Physical Education Department, Federal University of Paraiba, João Pessoa, Brazil; Research Laboratory for Physical Training Applied to Performance and Health, Federal University of Paraíba, João Pessoa, Brazil.
Clin Physiol Funct Imaging. 2014 Mar;34(2):126-32. doi: 10.1111/cpf.12074. Epub 2013 Aug 13.
To evaluate the effects of high-intensity resistance exercise on postexercise hypotension (PEH) and forearm vascular resistance (FVR) in the hypertensive elderly.
The study was conducted with ten hypertensive elderly individuals (65 ± 3 years, 28·7 ± 3 kg m(-2)). They were subjected to three experimental sessions: control session (SC), exercise 50% (S50%) and 80% (S80%) of 1RM. For each session, subjects were evaluated pre-and postintervention. In the preintervention, the blood pressure (BP) and FVR were measured after 10 min of rest. Thereafter, they were taken to the gym to perform the exercise sessions or remained at rest in each of the equipment during the same time. Both S50% and S80% were composed of a set of ten repetitions of ten exercises, with an interval of 90 s between exercises. Subsequently, the FVR and BP measurements were again performed at 10, 30, 50, 70 and 90 min of recovery (postintervention).
The PEH was greater in S80% compared with S50%, with the lower value of BP being found at 90 min of recovery for the two sessions (systolic BP: 115 ± 3,0 mmHg versus 124 ± 5 mmHg; diastolic BP: 75 ± 5 mmHg versus 86 ± 3 mmHg and mean BP: 87 ± 3 mmHg versus 95 ± 4 mmHg, respectively). Concomitantly, the FVR also decreased significantly in both sessions, this reduction being more evident in S80% (P<0·05).
High-intensity resistance exercise was effective in promoting PEH, this phenomenon being accompanied by a reduction in FVR within the first minute of recovery in the hypertensive elderly.
评估高强度抗阻运动对老年高血压患者运动后低血压（PEH）和前臂血管阻力（FVR）的影响。
该研究纳入了10名老年高血压患者（65±3岁，28.7±3 kg m⁻²）。他们接受了三个实验阶段：对照阶段（SC）、1RM的50%（S50%）运动和80%（S80%）运动。每个阶段，在干预前后对受试者进行评估。干预前，休息10分钟后测量血压（BP）和FVR。此后，他们被带到健身房进行运动阶段，或在同一时间在每个设备处休息。S50%和S80%均由一组十种练习，每种练习重复十次组成，练习之间间隔90秒。随后，在恢复的10、30、50、70和90分钟（干预后）再次测量FVR和BP。
与S50%相比，S80%的PEH更大，两个阶段在恢复90分钟时血压值更低（收缩压：115±3.0 mmHg对124±5 mmHg；舒张压：75±5 mmHg对86±3 mmHg；平均血压：87±3 mmHg对95±4 mmHg）。同时，两个阶段的FVR也显著降低，S80%的降低更明显（P<0.05）。
高强度抗阻运动在促进老年高血压患者的PEH方面有效，这种现象伴随着恢复第一分钟内FVR的降低。
