By Evan Ackerman

Tired of fad diets? Now YOU can instantly lose up to 80% of your body weight, at the push of a button! All you have to do is zip yourself up inside a G-Trainer antigravity treadmill and turn on a small air compressor. As the pressure inside increases, it starts to compensate for your body weight, adjustable up to 80% compensation in increments of 1%. Meanwhile, your body movement is unrestricted, allowing you to exercise on the treadmill normally.

“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.”

The Alter-G G-Trainer was just approved by the FDA for “medical uses in rehabilitation after lower extremity injury or surgery, aerobic conditioning, weight control, gait training for neurological conditions, and strengthening and conditioning for older patients.” Sounds good to me, but it might be a little tricky to get your hands on one of these without a legitimate reason. After the jump, check out a couple runners effortlessly beating world records on the G-Trainer.

[ Alter-G G-Trainer ] VIA [ Medgadget ]


  1. Do you really think that this tool is useful for healthy people?, have you ever heard about “Space Sickness”??? Reduced weight or weightlessness environments are not that much health for bone/muscle structure of the human beings.

  2. Would you get any space sickness after jumping around in waist-deep water? There are underwater treadmills and this looks like the same thing, with the exception that you can move your legs much faster than you could in water.