“Good Health Isn’t Expensive, It’s Priceless.”

Core Fitness & Nutrition

In-home and Online Personal Training in Fort Collins & Northern Colorado

30-Minute Individual and Small Group Personal Training Programs

Are you looking to transform your fitness journey? We are Core Fitness and Nutrition, your dedicated personal trainers in Fort Collins who are ready to guide you toward your goals. Whether you prefer the convenience of online sessions or the personal touch of in-person training, we offer a customized approach tailored to help you achieve your health and fitness goals from the comfort of your own home.

With expertise in post-physical therapy and special needs training as well, our online and at home fitness coaches provide Fort Collins residents like you specialized support to help you gain strength, mobility, and confidence. Our compassionate approach ensures a safe and effective workout experience, whether you’re recovering from an injury or navigating unique physical challenges.
Join us on your fitness journey today and discover the difference personalized fitness training can make in achieving your health and fitness goals. With our Fort Collins based personal trainers by your side, youll receive expert guidance, encouragement, and support every step of the way.

Start Your Health & Fitness Journey

Real Work. Real Results.

Certified Personal Training

Our certified personal trainers in Fort Collins have a collective 60+ years of experience and are equipped with the knowledge and expertise to help you reach your fitness goals safely and effectively. With a commitment to ongoing education and training, we stay up-to-date with the latest techniques and best practices in the health and fitness industry. You can trust us to provide expert guidance and support on your journey to a healthier, stronger you.

Nutrition Counseling

We have partnered with two local registered dietitians to offer comprehensive support for your health and fitness journey. With their expertise, you’ll receive personalized nutrition guidance tailored to complement your training regimen, helping you achieve optimal results. Together, Dennis and his team provide all the tools you need to reach your health and fitness goals.

Post-Physical Therapy

Our online and at home fitness coaches in Fort Collins collaborate closely with skilled physical therapists to provide integrated care that addresses your unique needs. Whether you’re recovering from an injury or seeking to improve mobility, we ensure a seamless transition from physical therapy to personalized training. With this collaborative approach, you’ll receive the specialized support and guidance necessary to optimize your recovery and enhance your overall well-being.

Real People.
Real Results.



30-minute personal training sessions that give you 2x the results


Exercise in the privacy of your own home or at your office


No gym membership or equipment required


Only Fort Collins Personal Training company with a Registered Dietitian


Servicing all homes and businesses in Fort Collins, Loveland, Timnath and Windsor

Popular Programs

Experience our popular programs designed to maximize your fitness journey and help you achieve your goals effectively.


Transform your fitness from the comfort of your own home with our comprehensive online fitness program for Fort Collins area clients.

In Person

Elevate your fitness journey with personalized in-person training sessions, tailored to your needs and goals for optimal results.

Post Physical Therapy

Transition seamlessly from rehabilitation to peak performance with our specialized post-physical therapy training, designed to restore strength, mobility, and confidence.

what They’re Saying

Client Testimonials

Dennis is an excellent and experienced trainer with a wonderful personality to boot. I found his workout plan non-intimidating and extremely manageable even as a bigger girl with a tight schedule. I would happily recommend Dennis to anyone looking to improve their fitness life.

Gabriell Papp

I usually don’t take the time to leave reviews online and I rarely give someone 5-stars. For Dennis and Core Fitness, however, I will make the exception. Dennis is a knowledgeable and skilled personal trainer who is committed to helping clients achieve their fitness goals. I have been working with Dennis for about 9 months and have dramatically improved muscle tone, strength, and have lost almost 30 pounds. It is rare that I get an opportunity to work with someone who is as dependable and dedicated as Dennis is, so I am happy to recommend his services to anyone who is interested in becoming healthier and getting in shape.

Pam Autio

I’m not a typical “write a review” gal. However, I’m hoping that if you are reading this, it will be helpful. I moved to FoCo during the pandemic. I used to consistently go to the gym, but it was difficult to find one during the outbreak. I needed motivation, but struggled mightily. After getting on line and looking around, I reached out to Dennis! He was the right fit! We spoke about my goals and my needing a “kick start” of accountability. I had the tools at home, but not the “stick-to-it-ive-ness” to finish my workouts. Dennis encouraged me to keep moving and challenged me in our on-line sessions. I was never bored with his routines, perhaps a bit sore, but never bored. 🙂 Summer has been a bit crazy, but his consistency in schedule and with the ability to have a few “make-up” sessions when I couldn’t make it, was great! He is definitely a 5-star guy. If you are on the fence, get off and get going with Dennis…you won’t regret it!!

Lexi Cire