Show heart Is not harmed by exercise melbourne strenuous athletic activities have no bad effect on the heart in tho the opinion of dr E L cooper dr J and E hughes of the university of sydney australia these scientists examined a se sc ries of oarsmen oarsman from universities and colleges before going into training after training and before and after racing they found that during muscular exercise the heart does docs not dilate at all but that it may enlarge us as a result of training although as soon as training Is stopped it rapidly reverts to its original size they could find no evidence of any permanent change to the heart as a result of training for and taking part in athletic sports their final conclusions were that even extreme physical effort on the part of an athlete such as the final dozen at the end of an exhausting two mile rowing raco race does docs not result in damage to tho the I 1 heart |