Redefining Movement With the AlterG Treadmill
The AlterG treadmill is a cutting-edge rehabilitation tool that allows patients to walk or run with reduced body weight.
Using advanced air pressure technology, this treadmill creates a safe environment where movement feels lighter and easier.
Patients who use the AlterG often describe it as a game changer, giving them the ability to move freely while protecting healing joints and muscles.

How It Works
Advanced Support for Healing Bodies
The AlterG treadmill uses differential air pressure to gently lift part of your body weight while you walk or run. This reduces the impact on your legs, hips, knees, and ankles without changing your natural movement patterns. By easing stress on the joints, patients can begin therapy sooner, progress faster, and build strength without fear of reinjury.
Conditions That Benefit From the AlterG Treadmill
Physical therapists at Trinity Rehab use the AlterG to treat a variety of conditions, including:
- Recovery after surgery, including ACL repair and joint replacement
- Hip, knee, and foot or ankle injuries
- Arthritis affecting the lower body
- Sports injuries such as ligament or tendon damage
- Stress fractures and shin splints
- Neurological conditions and balance or gait problems that affect walking
- Weight-bearing restrictions after an injury or procedure
Running, Injury, and Rehab on the Anti-Gravity Treadmill – AlterG
Osteoarthritis Patient with Asthma uses the AlterG M320 for Weight Management
Advanced Rehabilitation Technology – AlterG
Why Patients Choose the AlterG During Therapy
The AlterG allows patients to safely take steps they may not feel ready for on their own. It supports earlier mobility after surgery, helps athletes return to training faster, and builds confidence in patients who feel unsteady.
For those dealing with chronic pain, it provides the chance to move more comfortably while still gaining the benefits of exercise.
Benefits of the AlterG Treadmill at Trinity Rehab
- Reduced pressure on joints during walking or running
- Safe environment for early mobility after surgery or injury
- Faster return to sports and recreational activity
- Increased confidence in balance and movement
- Ability to exercise with less pain
- Progress tracking to measure improvements
What to Expect on the AlterG Treadmill
The AlterG uses NASA-developed differential air-pressure technology. You step onto the treadmill and zip into a soft air chamber around your waist. As it gently inflates, it lifts a precise amount of your body weight — up to about 80%, adjustable in 1% steps — so you can walk or run with far less stress on your joints while your natural movement pattern stays the same.
There is nothing special to prepare. You wear a pair of AlterG shorts over comfortable clothing, and your therapist sets the unweighting to a level that matches where you are in recovery, adjusting it up or down as you improve. Most people are surprised by how light and comfortable moving feels.
Because the impact is reduced, many patients can begin walking or running sooner than they could on solid ground — rebuilding strength, endurance, and confidence safely, with measurable progress tracked from session to session.

Frequently Asked Questions
Is the AlterG treadmill safe for all patients?
How does the AlterG feel different from a regular treadmill?
Can the AlterG help me return to sports faster?
How much of my body weight does the AlterG remove?
What do I wear on the AlterG?
Is the AlterG only for athletes?
Supporting Recovery and Confidence in Every Step
At Trinity Rehab, we use the AlterG treadmill as part of our commitment to patient-centered care. Every session is guided by a licensed therapist who tailors the treadmill program to your needs. Whether you’re recovering from surgery, managing arthritis, or training for a safe return to sport, the AlterG makes progress possible without unnecessary strain.
Patients tell us they choose us because they can feel the difference. With advanced tools like the AlterG, combined with personal attention from our therapists, recovery becomes smoother, safer, and more encouraging. We respect your time, provide flexible scheduling, and create an environment where patients stay motivated to reach their goals.
Move With Less Pain and More Confidence
You don’t have to wait until pain is gone to begin moving again. At Trinity Rehab, the Alter G treadmill helps patients rebuild strength, restore mobility, and return to daily life with greater comfort. Contact us today to schedule your evaluation and experience the difference in advanced rehabilitation technology.
Your Next Steps…
- Request An Appointment
- Receive A Custom Treatment Plan
- Work Hard and Progress In Your Recovery
- Recover & Enjoy Life Pain-Free

