Remove barriers for your patients and advance your clinic with the AlterG® Anti-Gravity Treadmill system for physical therapy and rehabilitation.


Leading the way in Anti-Gravity Treadmill technology since 2005, AlterG® uses patented Differential Air Pressure technology to gently and precisely reduce gravitational forces on your patients, allowing them to move without pain or interference to natural gait mechanics. Found in over 4000 facilities worldwide, AlterG has helped millions of people to shorten orthopedic recovery times, manage neurological conditions and chronic disease, build strength and endurance while aging, and increase athletic performance.

Elevate your clinic with an AlterG® Anti-Gravity Treadmill

  • Gently unweight your patients from 100% to as low as 20% of their body weight in precise 1% increments for low-impact, pain-free movement.
  • Unique technology allows for normal gait and balance unlike hydrotherapy or harnesses – for superior weight-supported walking, running, and closed kinetic-chain exercise.
  • Real-time gait data, pain recording, and live video monitoring improve clinical decision-making on the fly with objective, measurable information and visual feedback for improved outcomes.
  • Encourage movement and motor learning, improve range of motion.
  • Improve patient engagement and increase the likelihood of continued therapy.
  • Export reports to help improve operational efficiencies and support documentation.
  • Easy to use and can help improve staff and clinic productivity.
  • Differentiate your practice from the competition and build community awareness.

Broad applications for diverse users

Chronic Conditions
Sports Performance
  • Empower your patients to move pain-free again.
  • Enable earlier weight-bearing exercise while protecting sensitive healing tissues.
  • Encourage range of motion and normalize gait mechanics.
  • Reduce gravitational forces to help maintain – or regain – healthy conditioning.
  • Support motor learning in a fall-safe environment.
  • Enable functional activity and task-specific training.
  • Provide support in a controlled setting for static and dynamic standing practice.
  • Reduce the barrier to exercise for deconditioned, obese, or otherwise impaired users.
  • Set patients up for continued and escalating fitness achievement.
  • Increase exercise volume while minimizing stress-related workloads.
  • Provide objective data to incentivize long-term engagement.


  • Reduce gravitational forces to help maintain – or regain – healthy conditioning in a fall-safe environment.
  • Empower your patients to move pain-free again.
  • Provide support in a controlled setting for static and dynamic standing practice.
  • Improve walking speed to decrease morbidity and fall risk.
  • Limit downtime by training through injuries and enabling a return to sport in better condition.
  • Enable earlier post-surgery training.
  • Increase training volume while minimizing risk of stress-related injury.
  • Provide objective data to measure progress and enhance motivation.

Backed by clinical evidence

Learn more about how AlterG can help you treat a wide variety of conditions and how you and your team can integrate an Anti-Gravity Treadmill into your clinical program to improve outcomes.


Who is using an AlterG Anti-Gravity Treadmill?

Cleveland Clinic*
Craig Hospital
Department of Veteran Affairs
Hospital for Special Surgery (HSS)*
Johns Hopkins*
Kessler Institute for Rehabilitation*
Mayo Clinic*
Memorial Hermann*
Moss Rehab*
Rehab Institute of Chicago (RIC)*
Shepherd Center*
Spaulding Rehab

*US News and World Report top hospital or rehab hospital.