At Theorem Fitness, we understand that staying active, healthy, and pain-free is essential at every stage of life. To achieve this, you need a fitness program tailored to your unique needs and long-term wellness goals. Unfortunately, many programs in Bonita Springs rely on outdated, one-size-fits-all approaches that can lead to recurring injuries, increased pain, and slow progress—leaving you frustrated and questioning if your goals are attainable.
We believe everyone deserves the opportunity to live pain-free and enjoy an active lifestyle for years to come. You deserve a personalized approach that prioritizes your long-term health and success. That's why we work closely with you to create a fitness plan that aligns with your specific needs.
Whether you're dealing with nagging low back or hip pain, or you play sports like golf, tennis, or pickleball, we’re here to help you stay in the game. We know how frustrating it can be to experience persistent aches, limited mobility, and declining strength, which is why our founder, Dominick Nusdeu, a Muscle System Specialist, has developed a science-based training model that focuses on pain reduction, improved mobility, and strength—at any age.
Our approach is designed to address your specific challenges, helping you get back to doing what you love—without pain. We’re here to support your journey to pain-free living and longevity.
Ready to get started? Fill out the short form below to begin your personalized path to better health at Theorem Fitness today!
On this call we will discuss your goals, needs, and see if we are a good fit for you. If so, then we will schedule your intro sessions.
We use scientific, data driven methods to give a precise, personalized, and complete plan. You will receive a 90 minute full body joint assessment, a personalized report of findings, and (2) 30 minute follow up training sessions.
Build your body through ongoing individualized sessions. You’ll begin feeling more at home in your body as your work begins to give you a more abundant life beyond our doors.
We offer the personal training your body needs to live the life you want. Join Bonita Springs only science-based personal exercise clinic in a safe, clean, and professional atmosphere.
Many people over 45 struggle with aches and pains that won’t go away. I work with them 1:1 and create a personalized fitness plan that gets to the source of the issue so they can feel confident, strong, and fully engage in an active lifestyle.
Our 30inThirty Isophit Strength Series combines the benefits of Yoga, Weightlifting, and High Intensity Interval Training into an action-packed 30 minute isometric strength training workout that people love (to hate).
Training with Dominick at Theorem has been a transformative experience. He's the most knowledgeable and detail-oriented fitness instructor you'll find in SWFL, who tailors every exercise to fit indivi...
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For years now my L4 prolapsed disc and my left shoulder labrum tear has hindered my progress in Jiu Jitsu and Bodybuilding, not to mention my everyday life. Never before have I worked with a muscle sy...
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Please, do yourself a favour, pick up the phone and book your first session with Dominic at Theorem Fitness. You will not regret it. I went to Dom to help with back tightness and to get more mobility ...
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Dominick is the most competent, highly trained professional I’ve ever worked with. After years of struggling with back issues, I am confident I will have a pain free future. His knowledge far ex...
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I'm an aging athlete and Dominick is helping me identify areas of weakness I didn't even know I had, to help me improve my performance in the gym and prevent injury. He's the most knowledgeable tra...
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I had to leave a review, because after several months of working with Dominick, the owner of Theorem Fitness, I have seen a huge change in my body composition, and overall fitness. He is extremely kno...
Read MoreHere’s a simple video guide to help you assess the issue and come up with a personalized solution!
Training with Dominick at Theorem has been a transformative experience. He's the most knowledgeable and detail-oriented fitness instructor you'll find in SWFL, who tailors every exercise to fit individual needs and fitness levels. What really stands out is his ability to identify areas of weakness in my body that I hadn’t even realized were contributing to pain and other issues. With his guidance, I’ve been able to address those weaknesses, lose weight, and gain strength and mobility. I've seen real improvements in my overall health and fitness. Dominick’s personalized approach to workouts and nutrition makes the process both effective and sustainable. His dedication to his clients' success is evident in everything he does. Working with him is truly a game-changer! I highly recommend!
For years now my L4 prolapsed disc and my left shoulder labrum tear has hindered my progress in Jiu Jitsu and Bodybuilding, not to mention my everyday life. Never before have I worked with a muscle systems specialist that has completely abolished my pain and who has helped me regain not only strength and flexibility but also increased my athleticism to a level I never thought possible before. Thanks to Dominick I can train without the fear of injury or pain and his precise, ingenious methods can be incorporated into my everyday regimen. He seems like he works magic to the lay person but he’s just really good at what he does. If you try just one session with him you’ll see what I mean. Thank you Dominick: you are the best!! 🤩
Please, do yourself a favour, pick up the phone and book your first session with Dominic at Theorem Fitness. You will not regret it. I went to Dom to help with back tightness and to get more mobility overall. I had 2 sessions with him per week for about 3 months. I have tried all sorts of exercise classes, therapy sessions prescribed by orthopedic doctors, chiropractors, trainers at the gym, and always same tightness and pain and frankly I had almost given up. With Dom’s sessions I never hesitated about showing up, and crucially for me, I never checked the clock during each session. Dominic really takes the time to build a strong rapport with all of his clients and gets to know them and their goals. He is incredibly supportive, I never left with more pain, always less. He tailors every session, so it never gets boring and the chat and banter makes it fly by. For me, the sessions were amazing and also helped to me alleviate stress, anxiety, and most importantly pain. Can't recommend HIM highly enough.
