As featured in New York Times, USA Today, strongFirst, Spark r&D Splitboard and Friends of Berthoud Pass

Friends of Berthoud Pass
 

Sean Sewell is a Certified Personal Trainer, Sports Nutritionist, FMS 1, Kettlebell, Mace Instructor, TRX Rip and TRX Force Trainer specializing in Functional Training – creating fitness training programs to enhance your day to day life and activities and have more fun doing it. Spend less time in the gym and more time outside! 

 
Colorado Functional Personal Trainer, TRX, Sean Sewell, NSCA, NPTI, suspension trainer
meet sean
Colorado Personal Fitness Gym, TRX, TRX Rip trainer, BOSU, Kettlebell, battle rope, medicine ball, Hyperice
train with sean
 
 

Recognized in BusinessRate's Best of 2026 — Denver 80231 Personal Trainers. 4.9★ from clients on Google.

Functional training is the key ingredient in Sean's training style - the process is developing functional strength for more fun in life.

We use Functional Training - meaning functional training that actually lets you have more fun in life!  This is the kind of training that will allow you to enjoy real world actives that you find fun - like skiing, snowboarding, hiking, biking and outdoor sports. REAL, usable strength, balance, proprioception, power and endurance for real world activities. We use TRX, Kettlebells, BOSU, mace and bodyweight to train or clients. The possibilities are endless, the workouts are fun and you can feel the results in real world activities. Plus you will burn upwards of 800 calories an hour.  Don't spend all day in the gym.  Train smart and go have fun!
 

learn more on the Blog
choose your service
 

We believe in eating healthy and not limiting clients to a “diet”.

We teach healthy eating habits that are customized to each client’s needs and activities. There is no “one plan fits all” and it’s not as simple as “calories in – calories out”. That is old school thinking and will lead to failure and frustration.  We don’t advocate low calorie diet and boring cardio – we eat real food and see real results!  We teamed up with Thrive Market to help you find healthy food, at the best price, delivered to your home.  Click on the link below to receive 25% of + free shipping!
 

 
read testimonials
find recipes on the blog
 
 

THIS IS WHY WE TRAIN!!

We train for the Colorado Lifestyle! Getting outside and enjoying this beautiful state is what it's all about. Whether it's skiing, snowboarding, mountain biking, running, swimming, hiking, camping, rafting or playing with the kids – it's worth doing well.  Here are some pictures and videos of us and our clients making the most of our training and enjoying life!

Follow us on social media to see more! 

 
Great memory of the Baker Splitfest. My friend @zbirmingham took this pic of Mt Shuksan as we toured up around Mt Baker. Epic mountains up there! . . #splitboarding #mountains #mountainview #mountainvibes #earnyourturns #backcountrysnowboarding #hap
@matthew_flaherty1369 of @staffordstrength joins the @engearment podcast for round 3 of happy hour chats covering a wide range of fitness, coaching and fun stories. Learn more about @gfm_worldwide Breath! Course @flexiblesteelinternational Indian Clu
I have really been enjoying training students online this last 10 months. So much so that I have been coaching other fitness pros on how to provide the best audio, video and service to their clients and students as well. TRX offered a course on this
What an awesome piece of art from a great friend. Thank you @anthonywheelerart for the generous gift! 🙌🙏. Back in October I posted the 2nd pic from a camping trip. Anthony took that picture and created a masterpiece ❤️🏔. I love seeing Wally contem
Celebrating 2021 with a chilly walk in the mountains 🏔 . . #colorado #mountains
What a great way to round out 2020. Getting to have a fun and educational chat with my man @sven_rieger aka @strongfirst_germany 😎💪. We cover his path with @strongfirst and our mentors @brettjonessfg @x_fab_69 @ericfrohardt @pavelmacekcom @craigdma
A nice Christmas present came today 😎💪 . . #strongfirst #alwayslearning #trainsmart #strengthandconditioning #strengthtoallandtoallagoodnight #planstrong #happyholidays
Got an update that the Engearment podcast broke top 10 in Japan. 55 in USA and top 50 on Germany too! Thanks for the listens @sven_rieger !😎🙌. Very grateful that we get to chat with some awesome people, and hopefully inspire others to pursue streng
Pat Flynn joins Sean Sewell on the Engearment Podcast for the Holiday Special. Covering what it is like to work with Pavel, what we have learned from his teachings and how we use them. Dan John and Pavel on the new version of Easy Strength! We als
Such a great episode of the @bradkearns1 Get Over Yourself podcast. @ericfrohardt goes over his path from small town Iowa to becoming a Navy SEAL. His journey is incredible and inspiring. Super grateful to have met Eric, as he has been a great friend
Stoked to learn from @x_fab_69 this weekend for the @strongfirst Plan Strong 😎💪🤘 . . #strongfirst #alwayslearning #trainsmart #remotelearning

Click on the links below to learn more and get your own Colorado Personal Fitness recommended gear!

Enter code AMB10OFF for 10% off on TRX gear below!

HANAH