Sean Johnson

Littleton, CO 80123

I have been a trainer for 18 years, and I have dedicated much of my time studying and researching -- attempting to make sense of everything. My goal is always to give people hope when they feel there is none. My research has a direct compassion attached to it (with a lot of sympathy), while always attempting to find the hidden truth behind all of the chaos.

I am the owner of JRT Fit, and the J-Range Training certification business which I filed a patent on in 2008. I can offer the absolute safest exercise for your joints, while giving you amazing results.

About Me


Certifications / Trainings

ISSA - Personal Trainer Certification
Expires: Sep 24, 2022
NASM - Certified Personal Trainer (CPT)
Expires: May 25, 2022
ISSA - Elite Trainer Certification I
Expires: Sep 24, 2022
ISSA - Fitness / Exercise Therapist Certification
Expires: Sep 24, 2022
ISSA - Sports Nutrition Certification
Expires: Sep 24, 2022
NASM - Corrective Exercise Specialist (CES)
NASM - Group Personal Training Specialist (GPTS)
NASM - Performance Enhancement Specialist (PES)
NASM - Weight Loss Specialist (WLS)

CPR Certified

American Health Association
Expires: Sep 30, 2016

AED Certified

American Health Association
Expires: Sep 30, 2016

Sean's Locations


9719 W Coal Mine Ave
Unit G
Littleton, CO 80123

Additional Information



$100.00 / hr, Discounts for students, seniors, military, police

Payment Methods

Cash , Credit Cards , Personal Checks

Years Experience


Awards & Accomplishments

  • US Natural Bodybuilding Championships 2nd place in division 1999
  • Best Personal Trainer in Littleton 2015
  • Best Personal Trainer in Denver 2016

Languages Spoken




2 Ratings

5.0 out of 5 Stars

  • by Linda Mason on Jan 03, 2017

    I have had many trainers, but have now found the best! Sessions with others is always just counting reps and new workouts. Sean is much different. He explains in detail where to focus, what I should be feeling, where is okay and not okay to feel it, and keeps adjusting form... he makes adjustments all throughout my sets. No other trainer compares!

    His studio is so amazing! It is always clean and colorful, with some of the best equipment I have used. It's so nice not having to dodge a crowd. If you want the best, hire Sean!

  • by Priscilla Rose on Jun 29, 2016

    Sean has been my trainer for 16 years. When I was a regular weekly client with him from July 2000 - August 2004, I had amazing results! I moved away, but continue to train with him when I visit the Denver area; he's even worked with me long-distance over phone and email to review my training logs, provide feedback, and update my routine. I tend to slack off on the exercise routine and even more on the meal plan because I don't have the in-person accountability of Sean pushing me in the gym and talking about food. If I could still train weekly with Sean, I would because Sean truly knows what he's doing. He continues to pursue knowledge in this field by keeping up with research and correlating that information together so he has a clear understanding of how the human body works best. During a training session, he is very attentive to form and making sure that body and joint alignment are correct while moving through an exercise. I've never experienced or observed him being distracted by other people in the gym while his client was in the middle of reps. Because of his knowledge and attention to the individual he's working with, Sean is the only personal trainer I trust to train me in weight lifting & guide me in developing the correct dietary intake.