Rogers M W, Probst M M, Gruber J J, Berger R, Boone J B
University of Kentucky, Department of Kinesiology and Health Promotion, Lexington, USA.
J Hypertens. 1996 Nov;14(11):1369-75. doi: 10.1097/00004872-199611000-00017.
Psychologic stress has been associated with the development of hypertension. Aerobic exercise training appears to decrease cardiovascular responses to psychologic stress.
To determine the efficacy of low-intensity and moderate-intensity exercise training in reducing blood pressure and cardiovascular responses to stress.
We sought to compare the cardiovascular responses to a psychologic stressor, the Stroop Color Word Task (Stroop), before and after 12 weeks of low-intensity (about 45% maximal oxygen uptake) and moderate-intensity (about 75% maximal oxygen uptake) aerobic exercise training.
Eighteen borderline hypertensive subjects (resting blood pressure 139 +/- 9/92 +/- 9 mmHg) were divided randomly into three groups: control (no exercise), low-intensity exercise (40-50% maximal oxygen uptake), and moderate-intensity exercise (70-80% maximal oxygen uptake). Training groups exercised three times per week at the prescribed exercise intensity. Heart rate and blood pressure were recorded during the Stroop before, and after 4 and 8 weeks of exercise training.
In the low-intensity exercise group, exercise training attenuated mean blood pressure, systolic blood pressure, and diastolic blood pressure responses to the Stroop and decreased resting blood pressure. The moderate-intensity exercise group demonstrated a reduced diastolic blood pressure response to the Stroop.
These results suggest that, in borderline hypertensive humans, 12 weeks of aerobic exercise training attenuates the cardiovascular responses to the Stroop. Furthermore, low-intensity exercise training appears to be a more effective stimulus than moderate-intensity exercise training in reducing resting blood pressure and blood pressure responses to stress.
心理压力与高血压的发生有关。有氧运动训练似乎能降低心血管系统对心理压力的反应。
确定低强度和中等强度运动训练在降低血压以及心血管系统对压力反应方面的效果。
我们试图比较在进行12周的低强度（约最大摄氧量的45%）和中等强度（约最大摄氧量的75%）有氧运动训练前后，心血管系统对心理应激源——斯特鲁普色词测验（Stroop）的反应。
18名临界高血压受试者（静息血压为139±9/92±9 mmHg）被随机分为三组：对照组（不运动）、低强度运动组（最大摄氧量的40 - 50%）和中等强度运动组（最大摄氧量的70 - 80%）。训练组每周按规定的运动强度锻炼三次。在运动训练前、训练4周和8周后进行斯特鲁普测验时记录心率和血压。
在低强度运动组，运动训练减弱了对斯特鲁普测验的平均血压、收缩压和舒张压反应，并降低了静息血压。中等强度运动组对斯特鲁普测验的舒张压反应有所降低。
这些结果表明，在临界高血压人群中，12周的有氧运动训练可减弱心血管系统对斯特鲁普测验的反应。此外，在降低静息血压和血压对压力的反应方面，低强度运动训练似乎比中等强度运动训练更有效。
