I am 48 and was very active when younger and still active,but I have not been getting the aerobic work out I need,the heart pumping etc. I am 6'1'' about 200lbs and need to get back down to 170 to 180 lbs. I have the high blood pressure and the chloesterol problem. My job would provide me the best oppurtunity to walk, when things are running good I have ample time to walk/climb stairs ladders etc.