Sex-Differences in Heart Action. I, Duration of Systole; II, Heart Rate.. Ann Intern Med. 1928;1:938-939. doi: 10.7326/0003-4819-1-11-938
Download citation file:
Published: Ann Intern Med. 1928;1(11):938-939.
This content is PDF only. Please click on the PDF icon to access.
An examination of the curves of the duration of systoles in men and women, in recumbent, sitting and standing positions, with respect to cycle lengths, these being plotted as abscissae and systole lengths as ordinates, show that systoles in all positions progressively shorten as cycle lengths decrease. As cycle lengths shorten (pulse rates increase) not only is there less time for venous blood to accumulate, but the blood is pumped out of the veno-auricular reservoir more rapidly, and the systoles become shorter and shorter as the cycles decrease. The systoles are longer in the recumbent position than in sitting, and
Learn more about subscription options.
Register Now for a free account.
Results provided by:
Copyright © 2017 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use
This PDF is available to Subscribers Only