What is an Anti Gravity treadmill?

Ryan Correy April 7, 2015 No Comments

By (recovering) Athlete Ambassador, Sam Effah. Sources listed at the bottom. 

Anti Gravity Treadmill 01


“To use the Anti Gravity treadmill, you put on a pair of tight neoprene shorts. The shorts have a sort of skirt attached, and the skirt is lined with zipper teeth. You step onto the treadmill, inside a hole in its plastic casing, and zipper yourself in so that, from the waist down, you’re encased in an airtight plastic bag. As you stand there, the treadmill measures your weight, and you tell it how intense you want your workout to be. The machine uses “unweighting technology” to make you feel up to 80 percent lighter—so if you weigh 100 pounds, you could feel as light as 20 pounds on the treadmill.

The Anti-Gravity treadmill was originally invented by Robert Whalen, a biomechanics researcher at NASA Ames Research Centre, in the 1990s.”


The Alter G (also known as the Anti-Gravity Treadmill)

It’s amazing what the body can do under specific and altered conditions. This environment, coupled with supportive therapists and innovative technology has enabled me to train at an elite level with minimal impact on the body.  Regular access to an Anti-Gravity treadmill has been a major blessing.

At just 2 months post surgery I was able to expand my rehab program into a sprint program.  Running three times a week for an hour, has created a smooth transition, and increased the range of motion in my affected leg significantly. Interval sprint training post surgery would be unheard of years ago, but with the Anti-Gravity treadmill I am able to simulate running and make my recovery back onto the track that much quicker.  I’m excited about the gains I’ve made and the progress that is to come. I look forward to challenging for a spot on the Canadian Olympic team in 2016.

This machine was originally invented for NASA, and has helped Olympic athletes, injured soldiers and elderly patients learn to walk and live a normal life again.


Quick shout out to:

Hammer Nutrition Canada

Lifespring Physiotherapy (Aurora, ON), Winsport (Calgary), and the Calgary Sport Institute for use of their Alter G machines.

ProActive Group Health (Calgary)
CEP Compression Canada
Courtney Kapustianyk

Athletics Canada


More info on NASA and how they utilize the machine, (Source):


(Photo taken at Lifespring Physiotherapy in Aurora, Ontario)

Ryan Correy