were looking for regular people rather than professional athletes. the study took place over a period of six months participants were assigned to different groups the first which included did strength training for six months the second group went jogging regularly as did the third but with high intensity interval training the control group did no exercise at all. participants completed a fitness test before and after the study. the researchers measured their pulse the body s maximum oxygen uptake during exercise and their blood level. doctor. was primarily interested in tracking the subjects blood pressure the results were in lightening. june physical exertion your blood pressure rises