http://health.propeller.com/story/2007/01/30/exercise-via-swimming Swimming is one of the most popular forms of aerobic exercise, and it is an excellent activity for anyone who wishes to get fit and stay active. Swimming exercise uses more of the overall muscle mass of the body than almost any other form of exercise, and people get an upper-body workout and a lower... http://media-images.nscpcdn.com/media/ns-logo-rss.gif http://www.propeller.com en-us Copyright 2006-2007 Propeller Propeller.com