Kickboxing, Strength & Functional Training in Jenks, Oklahoma

Goodbye, Same Old Workout Routine.
Hello, Next Level Extreme Fitness.

What makes NLXF stand out is the personal connections built within a team-driven atmosphere, where every day presents a new challenge to become the best version of yourself. From the dynamic workouts to the high-energy environment and unwavering support from trainers and fellow members, NLXF fosters a culture that pushes you to grow. Our trainers aren’t just instructors—they’re leaders who genuinely care about your success, creating a community that motivates, supports, and fuels your fitness journey every step of the way.

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During an NLXF class, participants perform a variety of workouts out at different stations around the gym

Nobody Trains Harder. Here’s How We Do It:

Kickboxing

Kickboxing at NLXF is an experience you won’t find anywhere else. It’s a high-energy, engaging way to get an incredible cardio workout while building skill and technique. Instead of just throwing punches at a bag, we focus on form and progression—starting with fundamental movements and gradually advancing to more complex combinations throughout the session. No matter your age or fitness level, NLXF kickboxing delivers an intense, full-body workout that keeps you challenged and coming back for more.

Strength & Cardio

Strength and cardio days at NLXF are all about variety. Each workout is designed to keep both your body and mind engaged, constantly introducing new challenges to keep things fresh and exciting. You'll work with a mix of equipment, including dumbbells, resistance bands, steps, ladders, hurdles, benches, and more. These sessions are built to push your limits, helping you grow stronger and more resilient every week.

Nutritional Guidance & Accountability

"You work too hard in the gym to not take better care of yourself outside the gym."

At NLXF, we believe your effort doesn’t stop when you leave class — it continues in the choices you make every day. That’s why we provide real, sustainable nutritional guidance to help fuel your workouts, optimize recovery, and get the best results possible. We focus on simple, effective habits that fit into your lifestyle — because eating well shouldn’t feel like punishment.

Accountability at NLXF goes beyond check-ins and reminders — it’s about relationships. Our trainers get to know you, your goals, and what drives you. We push you when you need it, celebrate your wins, and make your fitness journey personal. When you show up to class, you’re not just another face in the gym — you’re part of a team that cares about your progress. That connection makes accountability natural, and soon enough, showing up isn’t an obligation — it’s something you want to do.

Weekly Structure

At NLXF, every day brings a new challenge. While some days follow familiar formats to help you build confidence and progress, our workouts are always evolving to keep you engaged and pushing your limits.

Mondays are the most variable day of the week. Most will focus on strength, but early in the session, we may incorporate kickboxing for technique work. Occasionally, you’ll experience a Black Monday — an intense, high-energy cardio workout designed to test your endurance and mental toughness.

Tuesdays and Thursdays are strength-based training days, focusing on upper body, lower body, or full-body workouts. These days often incorporate high-intensity interval training (HIIT) for added endurance and conditioning.

Wednesdays and Fridays are dedicated to kickboxing, so bring your gloves! Fridays feature The Gauntlet, a dynamic, high-intensity format that challenges both your skills and endurance — many members say it’s their favorite day!

No matter the day, you’ll never get the same workout twice — keeping your body guessing and your progress steady!

Frequently Asked Questions About Next Level Extreme Fitness

What Is Kickboxing & Why Does NLXF Use It?

At NLXF, we believe kickboxing is an optimal workout to give you the intensity you need to see quick results. If you’ve never kickboxed before, don’t sweat it! As each 8-week session begins, our instructors are ready to show you the ropes and walk you through the basics so that you have the foundation you need.

I Want to Try NLXF Before I Commit. Can I Come to a Class Before Signing Up?

Of course! During the “off” period between each 8-week session, we hold a series of free trial classes. These are a great time to come and see what NLXF is all about. Our next window of trial classes will come April 29 through May 15.

Can I Keep Working out at Next Level Extreme Fitness Between Sessions?

Yes! We offer two levels of membership pricing: A membership that is good for one eight-week session, and an ongoing membership plan billed monthly. If you’re on an ongoing monthly plan, you’ll have access to NLXF and all of the benefits you enjoy during a session – even after your 8-week session ends. You can learn more about our membership plans here.

How “Fit” Do I Need to Be to Join Next Level Extreme Fitness?

NLXF classes are for EVERYONE, regardless of your physical ability. Our trainers are equipped to work with anyone, and we can modify the exercises in our workout to fit your fitness level as needed. However, we do want all of our participants to be mentally prepared for an intense workout, from start to finish. Our goal is to take you to the next level!

It’s Time for a Difference-Making Decision. Sign up for NLXF Today!

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