Strength. Longevity. Performance for Life.
At Back Bay Fit, cutting-edge testing meets world-class coaching. Unlock peak performance, optimize your health, and build resilience that lasts a lifetime
Expert Guidance
Our industry-leading team includes Boston's best personal trainers, coaches, doctors, and therapists.
Boston’s Premier Fitness & Performance Programs
Our Core Services
Train on your terms with premium equipment, expertly designed programs, and the support you need to stay consistent.
From personal training to in-house physical therapy, our team delivers customized programs to help you build strength, prevent injury, and recover faster — ensuring sustainable progress for the long term.
Discover how fit you really are. From DXA body composition scans to VO₂ max and RMR testing, we measure what matters to unlock your potential.
If you're looking for a gym that delivers real results, Back Bay Fit is the place to be. I started my fitness journey here on January 11, 2026, and by March 25, 2026—just two and a half months later—the transformation was incredible. Huge thanks to trainer and owner Johnny Loreti. He creates personalized programs, keeps you motivated, and makes every workout count. In less than three months, I leaned down, revealed muscle definition, and completely transformed my midsection and chest.
Tom
Who We Are
Back Bay Fit is Boston’s premier destination for data-driven fitness and longevity. We combine advanced testing, elite coaching, physical therapy, and world-class facilities to help you build strength, optimize health, and thrive for life.
Strength & Conditioning
From foundational strength to advanced performance training, our programs build muscle, resilience, and functional capacity — so you can look, feel, and perform at your peak.
Personalized Coaching
Our expert trainers design tailored programs based on your goals, your test results, and your lifestyle. Every session is purposeful, effective, and focused on sustainable progress.
Performance Testing
We measure what matters: DXA scans, VO₂ max testing, and metabolic analysis give you a complete picture of your health and performance, providing the blueprint for smarter training.
Physical Therapy & Recovery
Our in-house physical therapy team helps prevent injury, restore function, and accelerate recovery — ensuring you can keep training and performing at your best.
Why Choose Back Bay Fit
At Back Bay Fit, fitness goes beyond workouts. We combine advanced performance testing, personalized coaching, and integrated physical therapy to deliver results that last a lifetime.
Boston’s professionals, athletes, and families trust us because we provide:
- Data-Driven Training : Programs built on DXA, VO₂ max, and metabolic testing.
- Expert Coaching & Therapy : Elite trainers and physical therapists working together to optimize your performance and prevent injury.
- Longevity Focus : Not just short-term gains, but sustainable health, resilience, and vitality.
- A Premium Environment : State-of-the-art facilities designed for serious training and recovery.
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Expert Coaches & Therapists
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Meet the Experts
Coaches • Therapists • Performance Specialists
Performance coach optimizing health through data-driven training.
Doctor of Physical Therapy specializing in sports performance.
Latest Fitness News
Get the edge you need. Dive into expert training tips, nutrition guides, and the latest from the Back Bay Fit team
Frequently Asked Questions
We offer personalized fitness programs tailored to your goals, including weight loss, muscle building, strength training, athletic performance, and overall health improvement.
Not at all. Our programs are designed for all fitness levels, from complete beginners to experienced athletes. Your coach will create a plan based on your current abilities and goals.
We start with an initial consultation and assessments, which may include body composition analysis, movement screening, and goal setting. Based on the results, we develop a customized training and nutrition strategy.
Yes. We provide nutrition guidance to help you build sustainable habits that support your fitness goals and overall well-being.
Training frequency depends on your goals, schedule, and fitness level. Most clients see noticeable progress by consistently training 2–4 times per week and following their personalized plan.
Results vary based on your starting point and commitment level. Many clients begin noticing improvements in energy, strength, and body composition within the first 4–8 weeks.
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Claim your complimentary session today. Experience Boston's premier training facility, expert coaching, and a community built to help you crush your goals
Joining BBF has been the best decision of my life. In just 12 weeks, I lost 80 pounds and gained back my confidence. The combination of personal training, chiropractic care, and even martial arts classes for my kids makes BBF more than just a gym — it’s a community. The trainers kept me motivated every step of the way, and I couldn’t have done it without their support. BBF is hands down the best fitness facility in Boston!
Fahad