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用立位加下身负压作为负荷,被试者心血管反应可分成四种不同特征,即血管型、混合型、心脏型和欠调型。它们主要特征分别表现为:血管型以增加外周阻力为主;混合型心率和外周阻力都明显增加;心脏型心率增加非常明显;欠调型心率和外周阻力都调节不上去。 负荷耐力以血管型最佳,混合型第二,心脏璎第三,欠调型较差.在卧床期间,被试者主观感觉和客观检查也表现为血管型和混合型较其它两种反应类型为好。卧床前后负荷试验的反应特征基本相似。 用模糊数学的概念处理这些数据,可以定量地比较出心血管反应特征的差异。
With the vertical position and the lower body negative pressure as the load, the subject’s cardiovascular response can be divided into four different characteristics, namely, vascular type, mixed type, heart type and undershoot type. Their main features were manifested as: vascular type in order to increase peripheral resistance; mixed heart rate and peripheral resistance were significantly increased; heart rate increased significantly; heart rate and peripheral arrhythmia are not regulated. Load endurance to the best vascular type, mixed second, heart 璎 third, poor tone pattern.In bedridden subjects subjective and objective examination also showed vascular and mixed type than the other two types of reactions As well Response characteristics of bed load test were similar before and after bed rest. Using the concept of fuzzy mathematics to process these data, the differences in cardiovascular response characteristics can be quantitatively compared.