Jumpingrope is one of the most efficient methods of cardio training. Jumpingrope for 10 minutes at a moderate pace is the equivalent to running onemile in 12 minutes, cycling 2 miles in six minutes, swimming a quartermile in 12 minutes, two sets of tennis or playing an 18-hole golfcourse. Since jumping rope is such an efficient exercise, yourcardiovascular system will experience some type of stress, especiallyin sedentary people. We highly recommend that sedentary people orpeople over 35 see a physician before beginning any exercise programs.