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AlterG PRO

Mobility changes everything

The AlterG PRO Anti-Gravity Treadmill® offers athletes the ultimate in unweighted recovery and performance training. With NASA technology, the AlterG PRO 500 uses differential air pressure (DAP™) to precisely reduce gravitational forces on your athletes by as much as 80% – so you can start rehabbing sooner or increase training volume for peak performance with less risk of injury.:

  • A pressurised bag creates an “anti-gravity” chamber by providing lifting forces from the application of precise air pressure
  • Uniform air lifting force supports normal gait and balance – without impeding natural biomechanics
  • Exportable reports help trainers and athletes track progress and train more effectively
  • Newly integrated Stride Smart analytics and automated workouts with the AlterG Assistant make it easy to see the direct effects of unweighting
  • Slat Belt treadmill for elite performance.

Patented Differential Air Pressure Technology

AlterG’s patented NASA Differential Air Pressure (DAP) technology utilises a special air chamber and an advanced calibration system to uniformly reduce gravitational load for unweighting from 100% to as low as 20% of body weight in precise 1% increments – without impeding natural gait mechanics. No other unweighting method delivers such precision and unparalleled control.

AlterG Pro 500 Treadmill In Action

AlterG’s PRO 500

Sports Performance


AlterG are committed to the scientific evaluation of the use and efficiency and the potential clinical and sports performance benefits of our patented Anti- Gravity Treadmill technology. With more than 50 published articles in peer-reviewed journals, ample research demonstrates the positive effects of using air-based body weight supported therapy for a wide variety of rehab and training applications.


The AlterG Assistant

Maximise your time and productivity by utilising pre-programmed workouts or develop your own for a customised experience.



Improvements can lead to normalised gait, reduced injury risk, and improved running form.


Pain Recording

Correlating gait and unweighting with athlete reported pain scores helps establish optimal parameters for training and tracking progress.


Weight Bearing Symmetry

Improves balance control and reduces risk of pain and joint degeneration.


Step Length Symmetry

Improves symmetry for increased step length, better speed, and more efficient gait.


The AlterG Assistant

Helps users correct asymmetries to achieve increased step length, running speed, and improved stance time.

What our customers think

The AlterG is a fantastic bit of high quality equipment that helps us to manage athletes more objectively when they’re recovering from any joint sustained injury...The treadmill also allows us to ensure normal gait is regained far sooner after injury then it would be by starting the athletes walking and running in a safe and controlled manner.

The AlterG has revolutionised rehabilitation. As well as a superb training tool it offers significant treatment flexibility across many clinical presentations in elite athletes from a wide range of sports.

Mobility changes everything


Air-based unweighting enables an unprecedented level of comfort and mobility – without impeding natural gait mechanics.


Patented technology gently unweights users in 1% increments to as low as 20% of body weight – quickly, effortlessly & precisely.

Safety & Security

Fall-safe environment enables progressive weightbearing activity and training volume – without impact on joints or risk of injury.


Unlike harness systems and hydrotherapy, AlterG technology can be used to progressively unload and load in precise 1% increments.

Body Weight Adjustment 100% - 20% (1% increments)
Display 22 inch touchscreen
Treadmill Slat Belt
Max Speed 18 mph (29 kph)
Starting Speed 0.1 mph (0.2 kph)
Reverse Speed 10 mph (16 kph)
Incline 0% - 15%
Live Video Monitoring Included
Stride Smart Included
AlterG Assistant Included
User Weight 85 lbs to 400 lbs (38 kg to 180 kg)