According to Runner's World 80 percent of all runners will experience an injury in a given year. That is counterproductive to what you set out to accomplish. I was slow to learn this. Years of running has taken its toll on my joints. Fortunately I have found a piece of aerobic equipment that enables me to effectively work my cardiovascular system with minimal stress on my joints. We have this piece of equipment at our New Orleans Personal Trainers and our Austin Personal Training locations.