If you’ve suffered an injury or gone through surgery, you know the recovery process can be long and challenging. Whether you’re a professional athlete or a weekend warrior, a senior citizen or a young competitor, the AlterG Anti-Gravity Treadmill can help optimize your treatment outcomes to get you back faster to the activities you love.
- Patented NASA technology allows for precise partial weight bearing
- Rehab and train like never before
- Professional Teams and Elite Medical Facilities are using the AlterG to revolutionize recovery programs
The science of healing and art of training combine here at AlterG to give you back your health faster. That way, you can spend more time living your life, instead of fixing your body.
How Does It Work
Originally conceived by Dr. Robert Whalen to design effective exercise regimens for NASA’s astronauts, Differential Air Pressure (DAP) technology has been adapted by AlterG for use in training and rehabilitation. Cleared by the FDA in 2008, the AlterG Anti-Gravity Treadmill is a medical device that can be used for:
- Rehabilitation of lower extremity injuries
- Treatment of neurological conditions
- Weight reduction
- Aerobic conditioning
- General training to combat the diseases of aging
Unweighting is achieved in the AlterG by using air in a pressure-controlled chamber to gently lift the user. Precise calibration using our patented technology allows for very specific unweighting from 100-20% of the users body weight in 1% increments. Something no other unweighting modality can do.
Clinical studies show that the AlterG can help decrease ground reaction forces in walking and running. The restoration of normal gait mechanics is paramount to optimal recovery and can be accelerated by our patented unweighting technology.
Why Unload?
- Allow for the protection of healing tissue
- Encourage range of motion
- Earlier initiation of closed-kinetic chain activity.
- Prevent disuse atrophy
- Encourages more rapid return of motor control
P200 Anti-Gravity Treadmills

Our flagship Anti-Gravity Treadmill combines AlterG’s patented Differential Air Pressure (DAP) technology with the finest treadmill on the market, the Woodway. With the ability to adjust speed from 0-18 mph and incline from 0-15%, countless elite athletes and professional teams are using the P200 as the ultimate rehab and cross-training tool.
Getting athletes back in the game is key for professional sports teams. Having them do it without losing a step is even better.
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Defy Gravity
- Return to functional activities like walking and running sooner
- Normalize gait mechanics while still protecting healing tissue with its unloading technology
- Improve aerobic conditioning without increasing the risk of stress-related injury
Accurate unweighting allows for significant reduction in ground reaction forces, allowing people to train faster, train harder, and train smarter on the AlterG P200.
M300 Anti-Gravity Treadmills

Our medical models use the same patented Differential Air Pressure (DAP) technology as the P200, but we have replaced the treadmill platform with a specialized rehabilitation treadmill. Patented calibration load sensor technology is unchanged in the M-Series, still allowing for precise, accurate unweighting from 100%-20% body weight in 1% increments.
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Why Is The M-Series Perfect For Medical Facilities?
- Easier entry and access
- Shorter step-up height for patient populations with difficulty ambulating
- Simpler and safer height adjustment and setup with our counterweighted, locking mechanism
By consolidating AlterG technology into a smaller footprint, our engineering team has created a unit that will occupy less space, making the M-Series the perfect fit for any size hospital, nursing facility, physical therapy clinic, or fitness club.
Whether your area is small or large, with the M-Series AlterG the general public can now have access to the same rehab technology the pros have.
