Experimental Biology and Medicine · 1968 · 12 citations · 0 references
Life SciencesCardiologyPhysiologyExercise PhysiologyMetabolic PhysiologyPhysical ActivityAerobic ExerciseCardiac PhysiologyExercise TrainingMetabolic Adaptation To ExerciseMetabolic Responses To ExerciseTraining AdaptationExercise Cardiovascular PhysiologyExercise Training AdaptationExercise-induced Cardiovascular ResponsesGlycogen AccumulationMetabolic Adaptation To TrainingMyocardial Energy MetabolismMyocardial MetabolismPhysiological Adaptations To Training
Aerobic and anaerobic activity measured in heart homogenates were generally lower in trained rats than in controls. This depressed activity was not seen in non-trained animals subjected to a single bout of exercise or to chronic aortic coarctation of a degree to simulate “training” hypertrophy. The mildly trained heart also did not spare its endogenous glycogen, as might be expected, during acute exercise.