Back Bay Fit,
400 Commonwealth Avenue, Boston, MA 02215
About Us

Welcome to Back Bay Fit, your premier destination for health and wellness in the heart of Boston! Located at 400 Commonwealth Avenue, our state-of-the-art gym offers a comprehensive range of services designed to help you boost your energy, enhance your mood, and achieve your fitness goals.
At Back Bay Fit, we understand that losing weight, managing pain, and overcoming fatigue can be challenging. That's why our team of expert fitness trainers is dedicated to creating personalized plans tailored to your unique needs. Whether you're interested in strength training, boxing, or nutrition coaching, we have the tools and expertise to support you every step of the way.
Our services include:
- Personalized Fitness Plans: From weight loss to muscle building, our Boston personal trainers will design a custom program to help you reach your goals.
- VO2 Max Testing & Metabolism Analysis: Discover more about your body's performance and metabolism to optimize your training.
- Martial Arts Training: Learn self-defense and train in boxing, kickboxing, and Brazilian Jiu-Jitsu with our skilled instructors.
- Injury Recovery & Rehabilitation: Our on-site chiropractic and rehab services ensure you recover quickly and effectively.
- DEXA Scans: Track your muscle mass, fat mass, and bone density to monitor your progress.
- Nutrition Coaching: Our dietitians create personalized meal plans and provide app support for tracking your progress.
Our newly renovated facility offers a spacious and comfortable environment, equipped with top-of-the-line equipment. Plus, our convenient Back Bay location makes it easy for you to incorporate fitness into your daily routine.
For those interested in providing personal training services, we offer space rental options to help you run your business seamlessly.
Join us at Back Bay Fit and embark on a transformative journey to better health and happiness. Book your complimentary consultation today and let us help you design a fitness plan that works for you!
Choose Back Bay Fit for a friendly, results-oriented approach to your fitness journey. We look forward to welcoming you to our community!
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Hours open
Monday:
4:30 AM - 9:00 PM
Tuesday:
4:30 AM - 9:00 PM
Wednesday:
4:30 AM - 9:00 PM
Thursday:
4:30 AM - 9:00 PM
Friday:
4:30 AM - 9:00 PM
Saturday:
6:00 AM - 3:00 PM
Sunday:
9:00 AM - 3:00 PM
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Contact Us
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Reviews
"I’m older than many working out and it has been great Jonny is a great teacher and with the range of equipment available I have flourished Strongest recommendation"
"had a great experience working with Johnny doing some personal training work. with his help I made significant progress towards my training goals in just a few short months. Highly recommend!"
"This gym is incredible. I’ve been working with Danielle for almost 9 months now and I’ve seen improvements in my health and fitness that I never would’ve reached on my own. She’s incredibly supportive, smart, easy to work with, and is a professional in every sense. As well, It’s clear Johnny takes great care and pride in this facility, and the customer experience. Everyone from the trainers to fellow customers are exceptionally friendly and polite. Setting up my appointments is always easy, and getting started was a breeze. I am always so excited for my next session."
"I love this gym in Back Bay! It was super convenient to everything. I love the friendly staff and there is such a great variety of equipment to work with. Also, due to their scheduling system it was never crowded - so no waiting around! I would highly recommend it! It is also next to a great chiropractor Dr. Bryan Kent at Forward Spine and Sport."
"I've been coming to Back Bay Fit for more than five years. It's simply the best training experience I've ever had. The trainers are incredibly professional and knowledgeable. The facility is intimate yet has state-of-the-art equipment and more than anyone could need. And, most importantly, it's a highly inclusive environment where everyone feels welcome."
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