NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Cardiocirculatory responses to exercise - Physiologic study by noninvasive techniques.The changes from rest to exercise were determined for certain phases of the cardiac cycle in ten healthy male subjects who underwent submaximal, physiologically paced bicycle ergometry. ECGs, phonocardiograms, and carotid pu lse tracings were recorded. The preejection period and isovolumic contraction time decreased with exercise. Changes in left ventricular ejection time appeared to depend on the severity or the duration of stress. Pulse transmission time did not change significantly. The data obtained in the study and comparison of these results to those obtained by invasive methods indicate that noninvasive techniques, when used in the manner suggested, are appropriate means for detecting a variety of cardiocirculatory changes during exercise.
Document ID
19720026481
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pigott, V. M.
(Lemuel Shattuck Hospital Boston, Mass., United States)
Spodick, D. H.
(Lemuel Shattuck Hospital; Tufts University; Boston, University, Boston, Mass., United States)
Rectra, E. H.
Khan , A. H.
(Tufts University Boston, Mass., United States)
Date Acquired
August 6, 2013
Publication Date
November 1, 1971
Publication Information
Publication: American Heart Journal
Volume: 82
Subject Category
Biosciences
Accession Number
72A10147
Funding Number(s)
CONTRACT_GRANT: NGR-22-012-006
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available