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let’s join to become champions
My personal training journey started in college. Before that, I was never really into any aspect of fitness. I ate what I wanted, ran a 15 min/mile and couldn’t tell you the difference between a plank or a pushup.That all changed in college, when I began playing intramural sports. I ended up falling back on ice, giving myself major whiplash and a concussion.
The impact was unreal and left me bed-ridden for three months. Pain medication, muscle relaxers and migraines became my norm, and doing simple activities such as driving became a task for me. Doctors kept telling me that the migraines would never go away, I would never be able to handle weight above my head and that there was nothing that they could do for me. It was something I refused to believe.
Redefine Fitness is my answer to all fitness questions. It’s not about having the biggest muscles or being the fastest runner, rather it is about helping you redefine yourself into the best version that you can be!
Meet the Staff
Fitness Specialist
Mount Sinai
Fitness Specialist
Mount Sinai
Assistant Fitness Manager
Stony Brook, Mount Sinai
Founder
Stony Brook, Mount Sinai
Nutrition Specialist
Stony Brook, Mount Sinai
Sales Specialist
Stony Brook, Mount Sinai
Fitness Specialist
Mount Sinai
Fitness Specialist
Stony Brook
Sales Manager
Stony Brook, Mount Sinai
Fitness Manager
Stony Brook, Mount Sinai
Fitness Specialist
Mount Sinai
Fitness Specialist
Mount Sinai
Fitness Specialist
Stony Brook
Certified Strength and Conditioning Specialist
Stony Brook
Fitness Specialist
Stony Brook
Marketing Manager
Stony Brook, Mount Sinai
Kickboxing Professional
Stony Brook, Mount Sinai
Fitness Specialist
Stony Brook
Fitness Specialist
Stony Brook
Fitness Specialist
Stony Brook
Fitness Specialist
Stony Brook
Fitness Specialist
Mount Sinai
Fitness Specialist
Mount Sinai
Pre & Post Natal Specialist
Stony Brook
Start Your Journey as a Trainer
Looking to start your career in fitness? Our Apprenticeship Program is built for passionate individuals who want to become professional trainers. Through hands-on experience, mentorship, and structured learning, you’ll gain the skills needed to grow into a successful fitness career.
Satisfied Client
Welcome to the Redefine Fitness Podcast, your go-to source for health and fitness insights in Mount Sinai and Stony Brook, NY. Our expert trainer, Anthony Amen, and special guests share valuable tips on workouts, nutrition, and overall wellness. Whether you’re looking to stay motivated, learn new fitness strategies, or improve your diet, our podcast has something for everyone.
REAL PEOPLE. REAL RESULTS.
See why clients trust Redefine.
Trustindex verifies that the original source of the review is Google. Had a 2 week experience in Redefine when over from UK. We were given a great welcome and encouragement. Targeted personal training for knee improvement was very professionally delivered - but always with a personal touch and empathy. Well done Kyle and Hannah! And thanks!Posted on Brian BrianTrustindex verifies that the original source of the review is Google. Kyle And Kolja Are The Best Trainers I highly recommend themPosted on Jameson KonenTrustindex verifies that the original source of the review is Google. Redefine Fitness in Stony Brook is hands down one of the best gyms I’ve ever been to. The atmosphere is welcoming, the equipment is top-notch, and the whole place is always clean and well-organized. But what really makes it stand out is the staff. Shoutout to Both Kyle and Kolja. They are incredibly knowledgeable and genuinely care about helping you reach your goals. Whether it's tweaking your form, answering questions, or just offering that extra bit of motivation, they’re always professional and approachable. They know what they're doing, and they make you feel confident and supported.Posted on Chris RuedTrustindex verifies that the original source of the review is Google. awesome trainers! everyones great!!Posted on Sarah ArrietaTrustindex verifies that the original source of the review is Google. I previously posted a positive review for my former Redefine trainer, Amanda. Now that she is in management and I have a new trainer, Hanna, it’s time I sang her praises! I continue to be proud of myself for making the commitment to working out. This level of exercise and strength training has been the best gift I could ever give myself. I feel strong, sure-footed, and healthy. I couldn’t do it though without Hanna! She might be young but she’s wise and sensible. We have such a nice rapport that I never hesitate to tell her if I’ve got some little issue troubling me because I know she will find a way to adapt my workouts accordingly. This is wonderful because it means that even if I’m not feeling 100% for some reason, most recently from jet lag, I can still get a good workout in. Most days I feel great and we get to it! Hanna pushes me, just the right amount. And all the other trainers are so friendly, my little successes are often met with cheers from the entire staff. It’s really sweet, like all of Redefine is cheering for my success! With this level of support from Hanna and the Redefine family, I know I will be a client for what I hope will be a very long, healthy life!Posted on Lisa BlakeTrustindex verifies that the original source of the review is Google. Been training here for over 2yrs and it’s been great. The trainers are knowledgeable and polite they’ve helped me work through past injuries. And the new faculty is nice and well equipped.Posted on V R
TWO PRIVATE STUDIOS.
SAME PREMIUM EXPERIENCE.

1113 North Country Road, Stony Brook, New York 11790

(631) 364-9027

Monday: 5:00 AM - 8:00 PM Tuesday: 5:00 AM - 8:00 PM Wednesday: 5:00 AM - 8:00 PM Thursday: 5:00 AM - 8:00 PM Saturday: 7:00 AM - 4:00 PM Sunday: 7:00 AM - 2:00 PM

271-1 Route 25A Mount Sinai, NY 11766

(631) 743-9906

Monday: 5:00 AM - 8:00 PM Tuesday: 5:00 AM - 8:00 PM Wednesday: 5:00 AM - 8:00 PM Thursday: 5:00 AM - 8:00 PM Saturday: 7:00 AM - 4:00 PM Sunday: 7:00 AM - 2:00 PM
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