EFFECTS OF DIFFERENT TRAINING INTENSITIES ON 24-HOUR BLOOD-PRESSURE IN HYPERTENSIVE SUBJECTS
EFFECTS OF DIFFERENT TRAINING INTENSITIES ON 24-HOUR BLOOD-PRESSURE IN HYPERTENSIVE SUBJECTS
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DOI：
10.1161/01.cir.88.6.2803
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发表时间：
1993-12-01
期刊：
影响因子：
37.8
通讯作者：
CLEROUX, J
中科院分区：
文献类型：
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作者：
MARCEAU, M;KOUAME, N;CLEROUX, J
背景体育锻炼可以降低高血压患者的血压，但运动强度的重要性尚未得到证实。本研究比较了不同强度的耐力训练对动态血压和血压负荷的影响（清醒和睡眠期间分别高于140/90和120/80 mm Hg的读数百分比）。先前久坐不动的轻度至中度高血压的受试者进行了评估，在交叉的方式根据拉丁方久坐不动的控制期后，在低和中等强度的训练后，分别对应于50%和70%的最大摄氧量。每个周期持续10周。在中等强度的训练后，发现一个更高的最大摄氧量相比，久坐不动的值，但在低强度的训练后。两种训练强度对24小时收缩压和舒张压产生了约5 mm Hg的类似降压作用。然而，低强度的训练仅在清醒时间降低血压，而中等强度的训练仅在晚上和睡眠时间降低血压。低强度训练后，清醒时血压负荷从66%下降到49%，而中等强度训练后，睡眠时血压负荷从61%下降到34%（均P
Background. It is generally accepted that physical training decreases blood pressure in hypertensive subjects, but the importance of training intensity has not been established. This study compared the effects of endurance training at different intensities on ambulatory blood pressure and on blood pressure load (percentage of readings above 140/90 and 120/80 mm Hg during the waking and sleeping periods, respectively).Methods and Results. Previously sedentary subjects with mild to moderate hypertension were evaluated in a crossover fashion according to a Latin square after a sedentary control period and after training at low and at moderate intensity corresponding to 50% and 70% of maximal oxygen uptake, respectively. Each period lasted 10 weeks. After training at moderate intensity, a higher maximal oxygen uptake was found compared with sedentary values but not after training at low intensity. Both training intensities exerted a similar antihypertensive effect of about 5 mm Hg for systolic and diastolic 24-hour blood pressures. However, training at low intensity reduced blood pressure exclusively during the waking hours, whereas training at a moderate intensity reduced blood pressure only during the evening and sleeping hours. Waking blood pressure load decreased from 66% to 49% after training at low intensity, whereas sleeping blood pressure load decreased from 61% to 34% after training at moderate intensity (both P