Girls compete with each other, Women empower one another


MJ Fit began in 2017 when MJ decided she wanted to offer a gym environment different from all of the big-box options. Her mission was to make fitness enjoyable for women who found traditional gyms to be uncomfortable and frustrating. Since then, we have grown into a team of several strong women who share the same passion as MJ!

We are a boutique studio gym in the DTC (Denver Tech Center) area, offering personal training, small group classes, and nutrition counseling exclusively for women and children. We’re dedicated to maintaining an empowering and encouraging environment focused on helping our clients reach their goals. Our team is small but diverse, which allows us to pair you with the trainer who would be the best fit based on personality and goals. Our trainers and instructors are the best of the best, and truly love working in an atmosphere full of so many incredible women.

If you’ve ever felt intimidation or frustration in past fitness endeavors, let MJ Fit be the gym that finally provides the support and tools necessary to be successful in reaching your health and wellness goals! We know what hard work and discipline looks like, and because of the care we have for our clients, we ask the same commitment in return; so don’t worry, if it is accountability you are looking for, we offer plenty!


Check out some client reviews

Clarissa and I have been working with Deb for two months now. Deb is attentive and extremely knowledgeable about helping me and my daughter to work out and lead a happy and healthy life. My daughter has special needs and Deb is compassionate and thoughtful in her dealings with her. We are very impressed and would recommend Deb to anyone.

Carol & Clarissa Capuano

I do personal strength and training 50 minutes sessions at the gym 2 times a week with Terri Ross. She is fabulous with the perfect balance of encouragement and push. I have the perfect sore after every training. Working with Terri makes me stronger in my triathlon disciplines and most importantly she makes me WANT to be stronger!


Terri, MJ, and MJ Fit are awesome! I was having a problem of no motivation to workout. I now feel motivated and excited to work out with Terri. She’s the perfect mix of down to earth, annoyingly attentive to form (in a great way! This is what I wanted), and fun to work with. I only know Terri and MJ, but 10/10 would recommend either of them.


Training with Marshelle has totally changed my life. Fitness for me used to mean spending some time watching tv while on the treadmill. Now, it’s all about customizing my workouts for what my body needs most and building fitness into my lifestyle. Marshelle truly cares about her clients, and it makes a difference in how you will think about fitness and nutrition in your life. If you’re thinking about whether or not you should sign up, try just one session with her. Though you might as well save some time and sign up for a package because you’re going to be won over.