Journal of Applied Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 53: 203-206, 1982;
8750-7587/82 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Abendschein, D. R.
Right arrow Articles by Rapaport, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Abendschein, D. R.
Right arrow Articles by Rapaport, E.

Journal of Applied Physiology, Vol 53, Issue 1 203-206, Copyright © 1982 by American Physiological Society

ARTICLES

Myocardial blood flow during acute isovolumic anemia and treadmill exercise in dogs

D. R. Abendschein, J. E. Fewell, C. J. Carlson and E. Rapaport

We examined whether submaximal treadmill exercise during acute isovolumic anemia altered the distribution of myocardial blood flow and thus caused subendocardial ischemia in unsedated dogs. Myocardial blood flow (determined by the microsphere method) and left ventricular function (indicated by pressures, volumes, and contractile indices) were measured in five dogs at rest and during exercise before and after equal volume exchange of blood and 6% dextran 70, which lowered hematocrit from 36 +/- 4 to 18 +/- 2% (SD). Total myocardial blood flow increased from 175 +/- 65 to 296 +/- 151 ml . min-1 . 100 g-1 (69%) during exercise before anemia and from 329 +/- 61 to 599 +/- 126 (82%) during exercise after anemia. The distribution of blood flow to the left and right ventricles and interventricular septum as well as the subendothelial-to-subepicardial blood flow ratio in these areas did not change during exercise either before or after anemia. Left ventricular function was not impaired during exercise after anemia. We conclude that subendocardial ischemia does not occur when dogs exercise during acute isovolumic anemia.


This article has been cited by other articles:


Home page
 J. Exp. Biol.Home page
J. Maina
What it takes to fly: the structural and functional respiratory refinements in birds and bats
J. Exp. Biol., January 10, 2000; 203(20): 3045 - 3064.
[Abstract]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online