4 miles on the treadmill at the Denver airport gym then the treadmill broke and the other ones had large TSA ladys walking on them so the last thing left was a stairmaster. I have never tried one of these so it took a few minutes to figure things out. Wow! These things rock! I was exhausted, heart rate at least 170 the whole time and no pounding on the joints. Why have'nt I tried these before? |