Alter G

Defy Gravity, Defy Limits

The pioneer of the Anti-Gravity Treadmill that will change what’s possible in rehabilitation and training. AlterG® Anti-Gravity Treadmill™ technology combines precision unweighting technology with real-time gait analytics and video feedback. No other unweighting technology offers as much precision, accuracy and comfort as AlterG.

Opens new and innovative data-driven possibilities with patented technology gives you:

  • NASA Differential Air Pressure (DAP) technology
    It was launched and licensed with NASA in 2005, initially used for astronauts to run and keep in shape while in outer space. The technology itself refers to NASA; Differential Air Pressure (DAP) is a pressurized, variable lifting force used to decrease the impact of gravitational forces and body weight during walking, running, or exercise. DAP is frequently used in various physical therapy applications for safely training and rehabilitating patients.
    During a workout, the air pressure system can be used to reduce body weight in increments as small as one percent. Body weight can be reduced by up to 80%. For example, imagine a patient who weighs 200 pounds, but whose injury only allows for 40 pounds of body-weight support to exercise safely. With DAP, this clinical application is possible.
  • Easy in, Easy out
    Low step-in height ensures the easiest possible ingress and egress for users.
  • Intuitive touchscreen interface
  • Enhanced data
    Providing valuable insight into gait and session data, allowing user-progress evaluation with essential data metrics. With Real-time gait analysis and Live video monitoring, both therapist and patient can objectively analyze it.
  • Smooth setup
    Open back cockpit design with light and easy height adjustment, inseam set-point measurements, and smooth-set locking mechanism to simplify entry and setup.
  • Accessible design
    Snap-up, magnetized air chamber closure lays flat for ease of entry, while a new window design provides critical visual accessibility in a robust, functional design.
  • Functional safety
    The patented DAP technology reduces gravitational forces and provides a fall-safe environment while supporting unimpeded gait mechanics and balance.

AlterG via is intended to be used for patients who suffer from:

  • Aerobic condition
  • Sport specific conditioning programs
  • Weight control and reduction
  • Gait Training and neuromuscular re-education in Neurologic Patients
  • Strengthening and conditioning in geriatric patients
  • Rehabilitation following injury or surgery of the lower extremity
  • Rehabilitation after total joint replacement


  • Body Weight Adjustment: 100% down to as little as 20% in 1% increments
  • Display: 15”
  • Treadmill: Flat Belt
  • Speed: -3 moh to 12 mph
  • Starting Speed: 0,1 mph
  • Reverse (-3 mph): Included
  • Incline (0% – 15%): Included
  • Live Video Monitoring: Included
  • Stride Smart: Included
  • AlterG Assistant: Included
  • User Weight: 85 lbs to 400 lbs