TRX CLASSES Join Now to starting earning your RESULTS! JOIN NOW Virtual TRX Classes Train with us from anywhere! Now streaming LIVE TRX Classes! Sign up Here Personal Training MADE PERSONAL At CORE Strong Fitness your goals are the focus! Personal training will help you reach those goals FASTER! LEARN MORE WE DELIVER RESULTS Take on your goals and REACH them with the CORE90 Program! SEE THE RESULTS
In Studio

TRX Classes

These ALL TRX based class is guaranteed to make you sweat and get STRONG! Strength training using your body weight as resistance will not only develop strong, more toned arms, legs, and back, but a ROCK SOLID CORE!

Virtual

Virtual TRX Classes

Workout with us from ANYWHERE! Grab your TRX and jump onto a class with us from the comfort of you home or on the road from your hotel room. This is the future of training. Come be apart of the CORE STRONG community!

In Person or Virtual

Personal Training

Get tailored results with our certified personal trainers. We can work with you in person one on one or visually one on one to get you results and get you on track. Don’t guess or go at it alone, we are here to help you be successful!

MORE THAN A ``Trainer``

Head Coach & Founder

Mark Campbell, owner and founder of CORE Strong Fitness.

Mark Campbell is a NSCA Certified Personal Trainer since 2008, he is the First Certified BLACK Rank TRX Training Coach in the Midwest and currently holds the highest level of education offered through TRX, iFMT Level 1 Certified through RockTape, Theragun Master Trainer, Certified Barefoot Training Specialist though EBFA, Precision Nutrition Level 1 coach, and Performance Climbing Coach.     

Mark graduated from Graceland University with a degree in Wellness Program Management, worked at a physical therapy group for 2 years teaching aquatic exercise classes for the Wellness Program, and worked as the Movement Coach at CORE Wellness Institute in Lee’s Summit, MO.

Mark is highly passionate and motivated to help others reach their Better through movement and health. When not coaching clients or coaching classes he enjoys rock climbing, yoga, and spending quite time with his wife and dogs.

Connect 1 on 1 with mark

Mark Campbell, CPT, TRX Black Rank

EARN YOUR BETTER

Pricing

DROP-IN CLASS

$25

Multiple Class Options

SIGN UP NOW

Drop In and check us out

Bring a Friend

Feel apart of the family

UNLIMITED

$150

ARE YOU READY TO MAKE A CHANGE?

SELECT PLAN

Unlimited access to ALL Classes

Private Facebook Group

FREE CORE Strong Fitness Blender Bottle

THE 90 DAY TRANSFORMATION

$499

Are you seeking transformation?

SIGN UP NOW

Change your life!

Gain confidence

Lose weight

Get Stronger

Feel Better

3 Month Membership Included

Private Facebook Challenge Group

FREE CORE Strong Fitness Blender Bottle

Pushing Your limits

JOIN THE CORE STRONG FAMILY

Request a free One on One consultation

If you’ve found yourself here, it means you’ve taken the first steps to Looking, Feeling and Moving Stronger!

Simply drop your name and email below to get what you came for: Results, community, expert advice and more.

You’ve waited, contemplated and possibly tried every easy way; you’re worth more than that.

Become the best version of YOU.

It all starts somewhere – it might as well be here.

See you inside – come EARN IT.

WHY CORE STRONG?

Class Options

CORE Strong Fitness offers a wide range of classes to meet your needs, schedule and goals. From TR-Xpress 30 minutes classes to TRX Strong, all classes are designed with YOU in mind.

FOUNDER

Mark Campbell is the FIRST, certified Black-Level TRX Coach in the Midwest. In addition to his many various certifications, you won’t find another coach or trainer in Kansas City who cares about you and your progress like Mark does. He has dedicated his life to building CORE Strong Fitness, the ONLY TRX based gym in Missouri.

MORE THAN JUST A GYM

Unlike most other gyms or fitness studios we TRULEY care about you! We have HIGHLY skilled and qualified coaches that make your experience the center of the class not just the workout. We are family and we have a strong community of like minded supportive individuals from all walks of life.

News

Official TRX Host Facility