I put on the special airtight shorts, and stepped onto the treadmill. All of a sudden the treadmill started filling with air and there was a giant bubble from the waist down. There was a subtle lift that I could hardly notice. But increasing and decreasing the body weight percentage made a noticeable difference in how heavy my legs felt. Other than making me feel lighter, I was able to run completely normally.
It provided a great way to ease back into running and test out the load on my MCL. Would highly recommend for anyone with a recovering injury that is trying to get back at it!