Abstract
Effect of exercise or fasting on the total carnitine content of liver, myocardiac and skeletal muscles were studied in rats. When one hour-swimming was loaded to rats, the level of total carnitine increased significantly in myocardiac and gastrocnemius muscles. In fatigued animals, which were loaded three times one hour-swimming exercise with half an hour rest between the swimming program, total carnitine content of gastrocnemius muscle increased as those of one hour-swimming animals, but that of myocardiac muscle was lowered significantly. Liver total carnitine content was decreased by one hour-swimming work but was recovered to the control level by the heavier swimming exercise.
In fasted animals total carnitine levels increased in both cardiac and gastrocnemius muscles, especially in the latter, but there found no significant change in liver.
