Blood volume, heart rate, and left ventricular ejection fraction changes in dogs before and after exercise during endurance training.
In Beagles (n = 5) after 7 weeks' endurance training, resting blood volume increased by an average of 13.1%. Resting heart rates were not significantly affected, but heart rates measured 2 minutes after exercise were significantly lower after the endurance training than before. Left ventricular ejection fractions determined by radionuclide angiography from 2 minutes after exercise showed no significant changes in response to a single exercise period or over the 50 days' training.
D000818:Animals; D001810:Blood Volume; D002302:Cardiac Output; D002860:Chromium Radioisotopes; D004285:Dogs / Q000502:physiology*; D006339:Heart Rate; D008297:Male; D010807:Physical Endurance; D005082:Physical Exertion; D012146:Rest; D013670:Sodium Pertechnetate Tc 99m; D013318:Stroke Volume; D013667:Technetium
D002860:Chromium Radioisotopes; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m