During the late war there was an urgent need for some objective test by which the presence and the degree of circulatory disability could be measured. The observations on which this paper is based were made in the attempt to supply this need.
The great majority of men with organic heart disease were rejected before admission to the army, but under the regulations issued for the medical examination of drafted men, it was not possible to exclude those who suffered from the condition known as irritable heart, neurocirculatory asthenia or effort syndrome, though a considerable percentage was later found to be incapable of active service. In England, Lewis developed a series of graduated drills by which the capacity of these men for service could be estimated. I used this system of exercises at Camp Lewis, both in normal individuals and in cases of irritable heart, but after some months it
ADDIS T. BLOOD PRESSURE AND PULSE RATE REACTIONS: SECOND PAPER. Arch Intern Med (Chic). 1922;30(2):240–268. doi:10.1001/archinte.1922.00110080110008
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