The way it works is that you wear a pair of super sexy spandex shorts that zipper around the waist and lock you into the pressurized bubble around the treadmill. You then have the ability to choose what percentage of your body weight you would like to run with. You can run at 30% or 80% depending on the injury or reason for using it. It feels like you are running with buoyancy. Some people use it for rehab after serious injuries and others use it simply to run with less impact and give their poor bodies a break! Several professional sports teams have their own G-Trainer. The reason for using this funny looking machine varies, but it is undoubtedly a great tool for runners of all levels.
Obviously we don't all have access to this $70,000 piece of equipment, but they are becoming more available for rehabilitation patients. If you're injured your insurance may cover the use of this machine with a prescription for physical therapy. It's a great way to hit the ground running with ease after an injury. Do your research and see if you can find one in your area.