Cardiovascular response during postural change in the elderly.
Cardiovascular response during postural change in the elderly.
复制标题
老年人姿势改变时的心血管反应。
DOI：
10.1093/geronj/45.1.m20
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Shapiro,D
中科院分区：
文献类型：
--
作者：
Goldstein,IB;Shapiro,D
为了评价坐姿和站姿以及从坐姿到站姿变化时的心率和血压反应，我们用无创血压跟踪器对40名60~76岁的健康男女进行了研究。与年轻人群相比，站立后立即出现的心率和血压曲线明显平坦，男性和女性之间没有差异。只有四名受试者在站立时表现出至少15毫米汞柱的收缩压下降。握手和心算都显著地改变了从坐到站的心血管反应，增加了直立性低血压和循环反射受损的人可以接受培训的可能性，以利用行为技术作为一种手段，防止血压在立位期间下降太多。
In order to evaluate the heart rate and blood pressure response during sitting and standing, as well as during the change from sitting to standing, we studied 40 healthy men and women, aged 60–76 years, by means of a noninvasive beat-to-beat blood pressure tracking cuff. Heart rate and blood pressure curves immediately after standing exhibited pronounced flattening relative to a younger population, with no differences between men and women. Only four subjects showed systolic blood pressure drops of at least 15 mmHg in response to standing. Both handgrip and mental arithmetic significantly modified the cardiovascular response from sitting to standing, raising the possibility that individuals with orthostatic hypotension and impaired circulatory reflexes could be trained to utilize behavioral techniques as a means of preventing blood pressure from dropping too far during orthostasis.