Lima E G, Herkenhoff F, Vasquez E C
Clínica de Investigação Cardiovascular-CBM, Laboratório de Fisiologia do Exerício-CEFD, UFES, Vitória.
Arq Bras Cardiol. 1998 Apr;70(4):243-9. doi: 10.1590/s0066-782x1998000400002.
To evaluate the effects of exercise training on ergometric test and ambulatory blood pressure monitoring (ABPM) in normotensive individuals with exaggerated blood pressure response to exercise.
We studied 22 sedentary and normotensive subjects (mean 44 +/- 1 years old) showing an exaggerated systolic blood pressure response (SBP > 220mmHg) during a cycloergometric test. These individuals were divided in two groups: sedentary hyperreactive group (SHG) and trained hyperreactive group (THG). The THG was submitted to a 4 month aerobic exercise training program.
A program of moderate aerobic exercise did not reduce (P > 0.05) ABPM blood pressure levels. However, in the submaximal loads of dynamic exercise we observed a significant fall in the SBP and heart rate (P < 0.05)
Normotensive individuals with exaggerated blood pressure response to dynamical exercise submitted to physical training presented a reduction in their systolic blood pressure and heart rate response during the submaximal loads of the cycloergometric test. The ABPM blood pressure values, however, did not change in both groups. These results suggest the involvement of the sympathetic nervous system in the exaggerated blood pressure response observed in these individuals during dynamic exercise and a corresponding reduction of the sympathetic tonus after training. This effect, apparently, did not extend to their daily activities.
评估运动训练对运动血压反应过度的血压正常个体的测力计测试和动态血压监测（ABPM）的影响。
我们研究了22名久坐且血压正常的受试者（平均年龄44±1岁），他们在蹬车测力计测试期间表现出收缩压反应过度（收缩压>220mmHg）。这些个体被分为两组：久坐反应过度组（SHG）和训练反应过度组（THG）。THG接受了为期4个月的有氧运动训练计划。
适度有氧运动计划并未降低（P>0.05）ABPM血压水平。然而，在动态运动的次最大负荷下，我们观察到收缩压和心率显著下降（P<0.05）。
进行体育训练的、对动态运动血压反应过度的血压正常个体，在蹬车测力计测试的次最大负荷期间，其收缩压和心率反应有所降低。然而，两组的ABPM血压值均未改变。这些结果表明，交感神经系统参与了这些个体在动态运动期间观察到的血压过度反应，并且训练后交感神经张力相应降低。显然，这种效应并未扩展到他们的日常活动中。
