
Welcome To Sustained Fitness and Physical Therapy In Boston’s Back Bay, MA
We Help Active Adults Quickly Recover From Pain Or Injury So They Can Stay Active, Get Back To What They Love To Do, and Do It For Decades
Wondering If Sustained Fitness and Physical Therapy Is Right For You?
Sustained Fitness and Physical Therapy in Boston
Speak With A PT
If you’re not quite ready to book an appointment yet, you might have some questions that you would like answered first. We would be happy to chat with you so we can be 100% sure that we can help you. Just click the button below to request to speak to us on the phone!
Availability & Pricing
We understand that some people want to find out a little more about the availability and pricing of physical therapy before booking an appointment. If you want to know about our availability, then just click the button below and complete the simple form.
Missing one day is too many.
How much is an injury costing you?
- Your mental health suffers.
- Pain distracts you from being fully present.
- You say “no” to things you actually want to do.
- You’re not sure how to modify your workouts for the injury.
- You have to find time for physical therapy and your workout.
Get back to what you love, stronger than before.

Physical Therapists Who Are Personal Trainers Too
We all want to move, feel, and look better. We want to get there fast without major setbacks. The fastest way to have it all is with a hybrid physical therapist/ personal trainer.

1-on-1 Sessions

Regular Check-ins

Fitness and Injury Focus

Extra Workouts in Your App
The Sustained Fitness and Physical Therapy 3-Step Process To Get You Back Doing What You Enjoy
Step 1:
Find The Real Cause of Your Pain
Step 2:
Fix Your Problem Areas
Step 3:
Stay At Peak Performance
After we treat your current symptoms, our focus will shift to optimizing your physical health and well-being. We’ll strive to ensure you reach and maintain top condition through preventive strategies going forward.
What Other People Just Like You Are Saying About Sustained Fitness and Physical Therapy In Boston’s Back Bay, MA
31+ 5-star reviews
- Chris P.
- Emily I.
I’ve been working with Kyle for only 3 months, however, my training experience has been by far the best one I’ve had in 20+ yrs. of working with personal trainers. Ryan, Adam and Kyle are physical therapists by training, which I believe is an invaluable asset in understanding the individual needs, limitations and goals of their clients. I appreciate the positive and motivating approach and would highly recommend working with them!
Meet Our Team

Dr. Ryan Billich PT, DPT
Co-owner, Physical Therapist, Personal Trainer

Dr. Adam Babcock PT, DPT
Co-owner, Physical Therapist, Personal Trainer

Dr. Kyle Ashworth PT, DPT, CSCS
Physical Therapist, Strength Coach
There are 3 ways to work with us
Which one is right for you?

Performance Physical Therapy
Where most people start with us. Our original blend of physical therapy and personal training tailored to your goals. Sessions are always 1-on-1 and put the control back in your hands.

Performance Training
For those who want to optimize to perform their best in all aspects. We cover goal setting, discuss how to stay consistent, and bring the best science (& dad jokes) to every workout session.

Individualized Programming
Live too far away from us or have zero time in your busy schedule? We’ll design a custom program based on your background and goals. Regular check-ins and updates included.