There are a few reasons that you might find yourself needing a bit of time on an Alter G G-Trainer:

• You want low impact aerobic conditioning.
• You are recovering from lower extremity injury or surgery.
• You have a neurological condition that affects your gait and you would like to work on it.
• You are elderly and would like to do some strengthening and conditioning.
• You are in desperate need of weight control.

Seriously folks, this is a cool looking piece of exercise equipment and it just might save you from a dialing wand. It will compensate for up to 80% of your body weight and is adjustable in 1% increments. As you get stronger, you reduce the compensation until you don’t need it any more. It is FDA approved, so they must be doing something right.

The physical lifting force generated by the G-Trainer comes from a difference in air pressure around the user’s body. Normal environmental air pressure is approximately 15psi. The maximum amount of air pressure used in the G-Trainer, if the user chooses to reduce effective body weight at the maximum 80%, is 16.5psi, so the difference is very slight. At the maximum air pressure, the user experience feels similar to the pressure against your feet if you were standing in waist-high water, but without the resistance or movement of water.

Source: New Launches, Oh Gizmo