I went in there today and was so excited! The treadmill is a special therapy machine that actually has you run with anti-gravity. Here is their website. You start by putting on these special shorts with a huge zipper around them. You then step onto the treadmill into this container that's almost like a plastic bag. You zip your shorts into the "entrapment" and they start filling it with air. As it's filling, it actually lifts you up off your feet! They can then adjust the levels and control the amount of body weight you're carrying. I started at 30% and ran just a mile. It was like running on the moon! Definitely a new experience for me. Next time, they'll increase the distance and possibly adjust the levels. It was just so awesome to be running again! Bad news, she said the half-marathon is a no-go. I had always known this was a possibility so I wasn't too crushed. At least I have cycling now, too!
These are a few videos about it that really show how it works: