A one minute step test at thirty-six steps per minute on a seventeen inch bench was given sixty U. S. Coast Guard Reservists on active duty for training while participating in an accelerated combat infantry training course. The subjects were divided into two groups. A control group of thirteen were equated to an experimental group of thirteen subjects. The experimental group performed the U. S. Coast Guard Physical Exercise Pro gram consisting of four exercises of eleven minutes total duration per day, as well as the regular combat infantry training experienced by the thirteen subjects in the equated control group. The results indicated that the recovery pulse rate, at the .01 level of confidence, made no significant changes in two weeks of combat infantry training on the control group, nor in the experimental group when matched with the control group. In both groups, however, there was a recovery pulse drop after training which at the end of three weeks of de-training reversed to pre-training levels.