The Redefine Annual Presale is open. Your 2027, paid once. Fifteen Annuals, and the presale kit ends October 4. See the Annual
Redefine Fitness® logo, Fitness Is Medicine®, medical fitness on Long Island
See if you're a fit
Redefine Fitness® logo, Fitness Is Medicine®, medical fitness on Long Island
See if you're a fit
Not a gym. Not physical therapy. The space between.

Get your strength back. Without getting hurt again.

Private one on one medical fitness for adults 40+ who want expert guidance, measurable progress and accountability.

Book Your Call
60 second form.
Skylar texts you right away and calls within minutes.
★★★★★ 500+ five star Google reviewsTwo Long Island studiosRegistered Dietitian on staffNurse Practitioner Clinical Advisor
Registered Dietitian reviewing a client’s nutrition and health history at Redefine Fitness

This is for you if

Cleared isn’t the same as ready. We start where medicine and physical therapy stop.

Your doctor told you to exercise, but you don’t know what is safe.
You tried training before and stopped, stalled or got hurt.
You want to stay strong and independent as you age.
Not the right fit if you want a crowded gym, workouts on your own, or the cheapest option.

Real people. Real results.

★★★★★ 5.0 across 500+ Google reviews
CLEARED, NOT READY
After recovering from an extended period of injuries, I realized that I needed to find a trainer with medical knowledge and an understanding of injuries. Using the trainer at this facility enabled me to move forward with confidence and gain physical strength.
Joanne D., Google review
TRIED BEFORE
I have tried various personal trainers in the past and I have always had problems with them not listening to me as I have some medical concerns and very often would make things worse. The staff at Redefine really focus on you and working within reason to help you strengthen and progress.
Lynn P., Google review
NOT ANOTHER GYM
I was hesitant to join another “gym”. Redefine is not another gym. It is a medical fitness program with an individualized workout plan to get you to your fitness goal whatever that may be complimented by nutritional support.
Janice R., Google review

How it works

STEP 1

Book your call

A 60 second form. Skylar texts you right away and calls within minutes.

STEP 2

Get your recommendation

Core or Signature, based on your goals and your history.

STEP 3

Start with your screening

Biometric analysis and movement screening, included with your program.

The medical fitness standard

Assessed, not guessed.

  • Private one on one. Your Fitness Specialist, never group.
  • Built around your health history. Programs developed with clinical input from Amanda Teeple, NP.
  • Registered Dietitian on staff. Shelbi Thurau, RDN, CDN.
  • Measured. InBody at weeks 1, 6 and 12, reassessed at week 12, every session tracked.
Shelbi Thurau, Registered Dietitian at Redefine Fitness Amanda Teeple, NP, Clinical Advisor at Redefine Fitness Fitness Specialist taking a client’s circumference measurements at a Redefine Fitness screening Female Fitness Specialist coaching a client through a cable exercise, one on one

Two programs. Every price published.

Core
$280 / week
Up to two private sessions a week, built from your screening.
Signature
$400 / week
Up to three private sessions a week, with Registered Dietitian nutrition care.
See full pricing, what’s included and the Advance Commitment

Not sure which program fits?

Book your call. We’ll recommend the right starting point.

Book Your Call
Mount Sinai271 Route 25A
Stony Brook1113 North Country Road

Prefer to start on your own? Buy the $200 Biometric Analysis and Movement Screening. It’s credited in full toward any program you start, and refunded if we decide we can’t help you safely.

Buy the $200 Screening
Already a member? Rewards, the app, your schedule and the Annual.Go to Members