CORE Strong Fitness

2540 W Pennway St, Kansas City, MO 64108

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  • 1st class FREE (no obligations) + ONLY $30 for 2 weeks of unlimited classes! offer image

    1st class FREE (no obligations) + ONLY $30 for 2 weeks of unlimited classes!

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1st Class FREE no Obligations ONLY 30 For 2 Weeks Of Unlimited Classes

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5 (51 reviews)
CLOSED

Today: 06:00 AM - 07:15 PM

What we offer

  • Group Classes

    Group Classes

    ALL TRX based classes 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!

  • One on One Training

    One on One Training

    Personal training that makes it PERSONAL! Focusing on strength, mobility, flexibility, goal setting, and nutrition coaching. Reach your goals faster with a personalized approach.

Why our customers say we are the best

CORE Strong Fitness CORE Strong Fitness image 2540 W Pennway St, Kansas City, MO 64108 (816) 281-9691

Customer Reviews

5 star star star star star

based on 51 reviews

  • Linda H.

    Linda H.

    11/02/2019

    star star star star star

    Challenging workouts in a FUN, encouraging, accepting atmosphere!! WhereEVER you are in your journey healthy & strong, start today to move forward!!

  • Linda H.

    Linda H.

    10/17/2019

    star star star star star

    Got in a fabulous workout at 6 a.m. this morning! Hope you’ll come join me! Core Strong - a family of great individuals on their own journeys to health!!

  • Linda H.

    Linda H.

    09/03/2019

    star star star star star

    While my new milestone may not be celebratory for some, for me it is a major accomplishment! When O began my Core Strong journey in late June, I believed my “walking” had strengthened me to fairly good health. Then I started to learn what my core is.... Thanks to Mark & Elyse encouraging me, I became determined to become strong!! Today I did the oblique plank (I think that is the right term). Was I as good as I will be soon? Not at all! But I am celebrating the success in my journey! I am 23 pounds lighter & many “planks” stronger! I also realized today that I am not anxiously checking the time clock to see how long I have to “survive” before a break!! Again, small steps toward strong! Thank you new workout friends & coaches!! This life change is awesome!!!!

  • Linda H.

    Linda H.

    08/20/2019

    star star star star star

    Core Strong is truly awesome!! It’s truly a place where you can own your workout!! Think it’s too hard? Modify. Next time you’ll modify less until before you know it, you’ll be lunging, planking & pressing with the best! Give it a try!! You’ll be very glad you did!!

  • Linda H.

    Linda H.

    08/15/2019

    star star star star star

    I’m so thankful that I got up & did the 6 am workout!! Busy life - more hectic than usual. You might even say “hard”. When the alarm went off at 4:30 I was tempted to roll over & sleep for another hour. Sinus headache, exhaustion & a busy schedule: skipping class would be justifiable, right? Wrong! After the workout I had a greater level of energy & my headache was better! Thanks, Mark Campbell, for a great class & for being an encourager toward “strong”.

  • Linda H.

    Linda H.

    07/20/2019

    star star star star star

    Core Strong is the best!! Always other folks there to partner with during the TRX stations & each one are encouraging!! So thankful for the instructors & the wonderful changes this is helping me make in my health journey!!

  • Linda H.

    Linda H.

    07/16/2019

    star star star star star

    I thought I was in fairly good shape - I could do a mean walk. Lol! I am learning that I have so many muscles I’ve not utilized to support my frame (like probably NEVER). I’m so grateful for the opportunity to learn more about actually becoming Core Strong on my journey to health!! Thanks Mark & Elyse for being incredible!

  • Danica

    Danica

    07/03/2019

    star star star star star

    CORE Strong Fitness has a very energetic and supportive staff! My sister, my 13-year-old daughter, and I were able to do the same workout together, with each of us at different fitness levels. It was fun AND challenging for each of us. We will be back!

  • Linda H.

    Linda H.

    06/20/2019

    star star star star star

    I’m incredibly sore - but feeling strong! Core Strong! At 62, I feared that being out of shape would make me the laughingstock of the class(es). Nothing could be farther from the truth!! The instructors are patient & encouraging - & the “students” are as well! Come on out & give it a try!

  • Anne D.

    Anne D.

    04/02/2019

    star star star star star

    My favorite workout is using a TRX. I love the flexibility and strength I feel after a workout. Coaches are highly motivated and extremely patient. Love going here.

  • Ian B.

    Ian B.

    03/15/2019

    star star star star star

    Mark Campbell is an excellent professional and the work outs have been trans-formative for me. I highly recommend and advise giving it a minimum of three visits to really get into the groove.

  • Anne D.

    Anne D.

    03/14/2019

    star star star star star

    Emily is a fantastic trainer! I absolutely love taking her classes. She is encouraging and helpful without being overbearing! She’s the best!

  • Anne D.

    Anne D.

    02/26/2019

    star star star star star

    I’ve taken classes with Emily and Mark. Both classes were extremely tough but I felt great afterward. I felt encouraged and strong through the entire work out.

  • Kat M.

    Kat M.

    02/23/2019

    star star star star star

    I’ve been coming to CORE strong for about 2 years. Keep trying other gyms but this is my home! Mark and his coaches push us and get to know us individually to help us grow stronger how WE want!

  • Jerrad U.

    Jerrad U.

    02/11/2019

    star star star star star

    LOVE what the are doing with the TRX-Strong classes! Come check it out!

  • Anne D.

    Anne D.

    01/28/2019

    star star star star star

    Core Strong Fitness is the best workout in the city. I get stronger every workout. I feel motivated and encouraged every time I come to class. Each of the trainers make me feel like I’m their only client.

  • Ashley U.

    Ashley U.

    01/26/2019

    star star star star star

    Best classes in the city!

  • Jerrad U.

    Jerrad U.

    01/26/2019

    star star star star star

    Always an awesome workout! Come get your sweat on!

  • Anne D.

    Anne D.

    01/18/2019

    star star star star star

    By far my favorite workout to get ready for swimsuit season! I love how I feel after completing these tough workouts!

  • Julia G.

    Julia G.

    12/21/2018

    star star star star star

    Even for a beginner like myself, the classes are accessible but still challenging. Mark and everyone attending classes make it a positive and encouraging environment!

  • Anne D.

    Anne D.

    11/23/2018

    star star star star star

    Love all the trainers. Everyday I get stronger, burn calories, and get closer to my goals!

  • Anne D.

    Anne D.

    10/31/2018

    star star star star star

    This is the workout that will get you the results you want. This workout is individualized to the results you want!!

  • Ian B.

    Ian B.

    10/29/2018

    star star star star star

    Attending classes at CORE Strong and committing to attending has been really positive for my wife and I....weight loss, muscle add, good friends and fun. Thank you coach Mark Campbell

  • Anne D.

    Anne D.

    10/23/2018

    star star star star star

    Great workout class. Great coaching. Great location. Trainers are knowledgeable and motivating!

  • Jerrad U.

    Jerrad U.

    10/18/2018

    star star star star star

    Love the environment, knowledge, comoroderie and oh yeah the workouts themselves!

  • Carly R.

    Carly R.

    10/08/2018

    star star star star star

    CORE Strong Fitness is a place that encourages growth while working on form and strength. It definitely has impacted my life for the better!

  • Elyse M.

    Elyse M.

    10/01/2018

    star star star star star

    Great workout!!

  • Anne D.

    Anne D.

    09/29/2018

    star star star star star

    Favorite workout class ever! Come to class, get results

  • Anne D.

    Anne D.

    09/16/2018

    star star star star star

    Best workout in KC

  • Elyse M.

    Elyse M.

    09/01/2018

    star star star star star

    My favorite place to work out! Love the small class size and community of people!

  • Anne D.

    Anne D.

    08/29/2018

    star star star star star

    My fav workout in the city. Love challenging myself!

  • Anne D.

    Anne D.

    08/15/2018

    star star star star star

    Best personal trainer. Not only helps whip your body into shape, but helps teach you the nutrition and science behind it all.

  • Jerrad U.

    Jerrad U.

    08/11/2018

    star star star star star

    Xome here for an awesome workout!

  • Anne D.

    Anne D.

    07/30/2018

    star star star star star

    Best workout in KC because of Mark Campbell! High intensity high calorie count burn! Great environment!

  • Anne D.

    Anne D.

    07/13/2018

    star star star star star

    Best workout in KC

  • Anne D.

    Anne D.

    07/13/2018

    star star star star star

    Best workout in KC. Best trainer in KC!

  • Jerrad U.

    Jerrad U.

    07/11/2018

    star star star star star

    Come here to workout, you know you want to

  • Kyle R.

    Kyle R.

    07/10/2018

    star star star star star

    Each workout challenges you and gives you a good workout. If you put in the effort you will see results

  • Brooke J.

    Brooke J.

    07/03/2018

    star star star star star

    This is the absolute best place to be. Not only did I do the 90 day challenge and lose 27 pounds, but I also learned how to do it the right way. Which means.. I’m still losing weight 3 months later, and I am continuing to feel good, healthy, and STRONG. Mark is amazing, he’s the best fitness coach I’ve ever had (and I’ve had quite a few). As a former athlete, I truly appreciate his balance between motivating and supportive. He knows his stuff which is awesome because you never have to question the process. I highly recommend trying this amazing facility. Love my CORE Strong family!

  • Brooke J.

    Brooke J.

    07/02/2018

    star star star star star

    This is the absolute best place to be. I did the 90 day challenge and lost 27 pounds! Not only did I lose a bunch of weight, but I learned how to do it the right way so I’m still losing weight 3 months later. Mark is amazing, he’s the best fitness coach I’ve ever had. As a former athlete, I appreciate his balance between motivating and encouraging. You won’t find a better workout! Love my CORE Strong family!

  • Amanda K.

    Amanda K.

    06/26/2018

    star star star star star

    Mark is amazing! Classes are always challenging, but customizable to your fitness level! I love how he’s able to teach an entire class but give individualized attention also! HIGHLY RECOMMENDED!!!!

  • Anne D.

    Anne D.

    06/24/2018

    star star star star star

    Great workout every time. The workout is always challenging and always changing!

  • Carly R.

    Carly R.

    06/21/2018

    star star star star star

    This is such an amazingly supportive environment to work out in! And Mark works with you to make the work out work for you! I am so glad that I chose CORE Strong!

  • Kat M.

    Kat M.

    06/21/2018

    star star star star star

    Mark is a great coach and motivator. He makes the tough classes fun! Highly recommend!

  • Lindsey B.

    Lindsey B.

    06/14/2018

    star star star star star

    Mark is super knowledgeable and personable.

  • Jerrad U.

    Jerrad U.

    06/12/2018

    star star star star star

    Love coming here. Mark knows his stuff and genuinely wants to help you meet your goals and set new ones.

  • Anne D.

    Anne D.

    06/11/2018

    star star star star star

    Mark is a great trainer and makes the Trx workout fun, motivating and a must do!!!

  • Anne D.

    Anne D.

    06/11/2018

    star star star star star

    Mark is a great trainer and I love the Trx classes. I love being part of the family at Corestrong fitness!

  • Ian B.

    Ian B.

    05/25/2018

    star star star star star

    Great challenge with tons of support and patience from Mark. I am just only beginning to keep up but feel the upside will be good. Highly recommend a serious, no frills and supportive environment. Ian

  • Anne D.

    Anne D.

    05/24/2018

    star star star star star

    Love Trx! Been able to reach my goals with the assistance from Mark, the owner! He’s encouraging, helpful, and motivating!

  • John P.

    John P.

    05/21/2018

    star star star star star

    TRX FIT is perfect for getting on a good sweat and focusing on that CORE!

About Us

CORE Strong Fitness About Us Image

At CORE Strong Fitness, we provide a Welcoming, Fun and Challenging environment for all levels!

Using TRX Suspension training as the main focus for our small group and personal training sessions, you are able to build muscle, burn fat and get cardio in all in one workout!

Change the way you train to get the results you always wanted and never knew you were missing!

Everything you need to know from our blog