Somers V K, Conway J, LeWinter M, Sleight P
Cardiac Department, John Radcliffe Hospital, Oxford, UK.
J Hypertens Suppl. 1985 Dec;3(3):S129-30.
We investigated whether changes in baroreflex sensitivity could explain the drop in blood pressure after exercise in 12 borderline hypertensive subjects. Intra-arterial blood pressure and baroreflex sensitivity (phenylephrine method) were measured before and 10, 20, 40 and 60 min after maximal exercise. Systolic blood pressure was lower at all stages after exercise. Baroreflex sensitivity was reduced at 10 min, recovered at 20 min and rose above control values at 40 and 60 min. Although the baroreflex sensitivity recovers slowly after exercise, at 40 and 60 min it is higher than the control value and could therefore contribute to the sustained reduction in blood pressure after a period of heavy exercise.
我们研究了压力反射敏感性的变化是否能够解释12名临界高血压受试者运动后血压下降的现象。在最大运动前以及运动后10、20、40和60分钟测量动脉内血压和压力反射敏感性（去氧肾上腺素法）。运动后各阶段收缩压均降低。压力反射敏感性在运动后10分钟降低，20分钟恢复，40和60分钟时升至高于对照值的水平。尽管运动后压力反射敏感性恢复缓慢，但在40和60分钟时高于对照值，因此可能有助于在剧烈运动一段时间后血压持续降低。
