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Workouts

Strength & Conditioning – Kevin Kearns, Workout 8: Core Killer

Kevin Kearns knows what it means to train like a fighter - he has trained successful UFC fighters for many years. Now you can get a chance at these exclusive hardcore workouts.

Kevin Kearns

Written by Kevin Kearns Last updated on Dec 6, 2022

Kevin Kearns knows what it means to train like a fighter – he has trained UFC fighters like Kenny Florian, Stephan Bonnar, and Marcus Davis for a living for many years. Now you can get a chance at these hardcore workouts, that also happen to be a lot of fun.

To learn more about Kevin, read our feature interview:

Featured Coach: Kevin Kearns, Part 1 – Blowing Up With the UFC

Featured Coach: Kevin Kearns, Part 2 – Everybody Has a Good Fight

Workout 8: “Core Killer”

You have heard this term beaten to death in our industry. This works your core or that works your core. Let’s break it down to K.I.S.S. – keep it simple and seamless. To find your core, take a crayon and draw a line from your left shoulder to your opposite hip. Repeat on the other side. All the muscles in that “performance X,” as I call it, are anterior and posterior muscles that comprise your core. That means your abs, low back, hips, and glutes are all involved.

Many people believe the way to obtain washboard abs is by doing thousands of sit-ups or crunches. Wrong. Sit-ups and crunches will make the muscles on top strong, but not the internal framework. The core includes the surface abs, the internal abs (transverse abdominal, internal oblique, external oblique) glutes, muscles related to the hips, and low back muscles. That is what we consider the core.

In this workout we will show the same movements that my UFC fighter clients use to strengthen those essential muscles. Want more power in your strikes? Then start at the core. Not only will this enable you to punch, kick, elbow, and knee with more authority, it will also enable you to absorb more punishment to the mid-section.

This is a simple workout that can fit into anyone’s regimen. It takes little time and can be done with a medicine ball or band. The best part is that anyone can do it and you work your whole body including fight mechanics.

“Core Killer”

1. Russian twists: 20 reps 3 sets

2. Wood chops: 20 reps 3 sets

3. Diagonal chops: 20 reps 3 sets

4. Figure 8s: 20 reps 3 sets

5. Big circles: 20 reps 3 sets

Kevin Kearns

About Kevin Kearns

For over twenty five years, Kevin Kearns has been professionally involved in the fitness industry. He graduated from the University of Massachusetts, Boston, where he was trained by Dr. David Thomas. He is certified by the NSCA (National Strength and Conditioning Association) and is a Functional Movement Screen (FMS) Certified Specialist and a FreeMotion Master Trainer.

Coach Kearns has served as the strength and conditioning coach for professional Mixed Martial Arts (MMA) fighters including Alberto Crane, Marcus Davis, and Din Thomas. He also was the strength and conditioning coach for WEC fighter Alex Karalexis and Gracie Jiu-Jitsu Black Belt and MMA fighter Daniel Gracie. Kevin works closely with famed Muay Thai/MMA coach Mark DellaGrotte out of Sityodtong. Based on his experience in training UFC fighters, Coach Kearns was appointed the strength, conditioning and wellness coach for the Martial Arts University International (MAUI), an association of the top martial arts schools in the country.

Coach Kearns contributes to mmatraining.com. He writes a monthly column for Ultimate MMA Magazine and a weekly conditioning blog for the Boston Herald. Magazines such as Maxim, Fight, Inside Kung Fu and Men's Fitness have featured his work.

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