Romanovská L, Prerovský I
Physiol Bohemoslov. 1979;28(4):309-13.
The blood flow and vascular resistance in the calf were studied in two groups of healthy subjects (mean ages 22 and 49 years) at rest and in reactive hyperaemia produced by five minutes' ischaemia of the lower limb. The blood flow was determined by venous occlusive plethysmography and vascular resistance was computed from the mean blood pressure measured by auscultation on the arm and from the blood flow in the calf, at rest and during reactive hyperaemia. The resting flow and blood flows throughout practically the whole time of hyperaemia were found to be significantly smaller in young individuals. The maximal flow was significantly lower, the maximal flow time was significantly prolonged in young subjects. The recovery time and repayment of the flow debt in the two groups were the same. Vascular resistance in the calf was significantly greater in young subjects, both at rest and during dilatation. We assume from the results that the capacity of the arterial system in the lower limbs is significantly smaller in young individuals.
在两组健康受试者（平均年龄分别为22岁和49岁）中，研究了小腿在静息状态下以及下肢缺血5分钟后产生反应性充血时的血流和血管阻力。通过静脉阻塞体积描记法测定血流，血管阻力则根据在手臂听诊测得的平均血压以及小腿在静息状态和反应性充血期间的血流来计算。结果发现，年轻个体的静息血流以及在几乎整个充血期间的血流均显著较小。年轻受试者的最大血流量显著更低，最大血流时间显著延长。两组的恢复时间和血流亏欠的偿还情况相同。年轻受试者小腿的血管阻力在静息状态和血管扩张时均显著更高。根据这些结果我们推测，年轻个体下肢动脉系统的容量显著更小。
