Hi Tony: My name is David and I just wanted to say, “Thanks for the invention of the Gazelle.” I believe it saved my life. After having a total hip replacement in 2006, I put on about 80 pounds. I went from 220 pounds which I was already over-weight to 302 pounds and I’m 5 foot 8 Inches tall. My mom gave me a Gazelle that she didn’t use. I was always out of breath and if I exerted myself too much I could always feel my heart like it was going to pound right out of my chest. I believe I was getting close to having a heart attack. I started out on the machine in December of 2009 and without dieting I’ve lost 75 pounds so far now I am up to sprinting on the machine 25 minutes twice a day and the work out feels incredible. That machine has turned my life around to I just wanted to say, “Thanks!” David