Redefine Fitness

Redefine Fitness We are a medical fitness company that combines fitness, nutrition and accountability to help unlock a better you.

Book a consult: https://linktr.ee/redefinefitnessli Redefine Fitness was created as a gateway to help change what is known about how we define being fit. My goal is to help provide my clients with fact driven results that fit their own personal needs. It's time to refute all of those outlandish fitness myths and redefine what it means to be fit.

The fitness industry has been talking at you for decades. Not about you.📍 Mount Sinai & Stony Brook · 631-250-5622      ...
09/23/2026

The fitness industry has been talking at you for decades. Not about you.

📍 Mount Sinai & Stony Brook · 631-250-5622

09/21/2026

Division I coach. Lifelong athlete. Now a Fitness Specialist at Redefine.

Kolja spent his career figuring out the why behind every person he worked with, whether that was a player or a client. That does not change here. It just looks different.

The people coaching you at Redefine bring more than a certification. They bring a standard.

📍 Mount Sinai & Stony Brook · 631-250-5622

58 years old. Walked in feeling like her body had already made up its mind.It had not.Stronger. More energy. The aches t...
09/17/2026

58 years old. Walked in feeling like her body had already made up its mind.

It had not.

Stronger. More energy. The aches that used to run her day do not anymore. That is what happens when a program is built around what you actually need, by people who pay attention every single week.

Thank you, Patricia.

📍 Mount Sinai & Stony Brook · 631-250-5622

09/15/2026

Quality costs what it costs because of what goes into it.

Understanding your medical history. Programming around what your doctor actually told you. Fitness Specialists trained to a standard most facilities have never heard of. A Registered Dietitian on staff with a master's degree, licensed through New York State, building meal plans around exactly what your body needs.

If you want a good workout, you can find that anywhere.

If you want a program built entirely around you, this is the place.

📍 Mount Sinai & Stony Brook · 631-250-5622

Meet Amanda Teeple, Nurse Practitioner and Clinical Advisor at Redefine Fitness.Amanda brings clinical oversight to ever...
09/14/2026

Meet Amanda Teeple, Nurse Practitioner and Clinical Advisor at Redefine Fitness.

Amanda brings clinical oversight to everything we do. She keeps our Fitness Specialists current on the latest health and fitness science, and she helped design the methodology behind how every program at Redefine is built.

Having a nurse practitioner on the team changes what is possible in the room. It means the people coaching you are not guessing. They are trained to the standard she sets.

This is what Fitness Is Medicine looks like in practice.

📍 Mount Sinai & Stony Brook · 631-250-5622

Most falls do not happen because someone is careless. They happen because the strength and stability that prevent them w...
09/12/2026

Most falls do not happen because someone is careless. They happen because the strength and stability that prevent them was never trained.

Balance is a skill. And like any skill, it responds to the right work.

This Sunday September 20 at 1:00 PM, George Rosenberg, Fitness Specialist at Redefine, is leading a free one hour Balance and Stability workshop at our Mount Sinai studio. Open to everyone. Guests welcome.

Spots are limited. Save yours at redefine-fitness.com or call 631-743-9906.

📍 Mount Sinai · Redefine Fitness

Today we remember.The lives lost. The ones who ran toward it. The families who carried what came after.Twenty-five years...
09/11/2026

Today we remember.

The lives lost. The ones who ran toward it. The families who carried what came after.

Twenty-five years later, we do not forget.

Losing muscle is silent. You do not feel it happening. You just notice one day that something that used to be easy is no...
09/10/2026

Losing muscle is silent. You do not feel it happening. You just notice one day that something that used to be easy is not anymore.

The stairs. Getting up from the floor. Carrying groceries without thinking about it.

It is not age. It is muscle loss. And it is something a program built around your body can actually address.

Comment LEARN MORE and we will reach out.

📍 Mount Sinai & Stony Brook · 631-250-5622

09/09/2026

A year and a half. Six days a week. 5:00 in the morning.

Adria did not come here to check a box. She came because something needed to change, and she found a team that showed up for her every single time she walked through the door.

Stronger. More mobile. Better balance. And a group of specialists she credits for all of it.

Thank you, Adria. This is the whole point.

📍 Mount Sinai & Stony Brook · 631-250-5622

Happy Labor Day from the Redefine team.📍 Mount Sinai & Stony Brook · 631-250-5622
09/07/2026

Happy Labor Day from the Redefine team.

📍 Mount Sinai & Stony Brook · 631-250-5622

Address

1113 North Country Road
Stony Brook, NY
11790

Opening Hours

Monday 6am - 8pm
Tuesday 6am - 8pm
Wednesday 6am - 8pm
Thursday 6am - 8pm
Friday 6am - 12pm
Saturday 7am - 1pm
Sunday 8am - 12pm

Telephone

+16313649027

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