Train With Confidence—Build Strength You Can Count On

Build strength, recover safely, and live without limits - all in just one weekly session.

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The Benefits of ALL-IN-15

Unlike most fitness programs, every ALL-IN-15 session is completely tailored to your getting you results. We use data and science to help you feel confident about your progress and strength. When you walk through our doors, we focus solely on your goals and progress. No matter your age, we will help you experience the benefits below.

Greater Functional Strength

From lifting groceries to improving your golf swing speed, feel stronger and more capable in everything you do.

Raise Mobility and Flexibility

Move with ease and confidence, whether it's reaching for something on the top shelf or hitting your stride on the hiking trail.

Better Balance and Posture

Stand taller, move better, and have more control of your body-whether at work, home, or play.

More Power

Whether you're chasing the kids or chasing your next athletic goal, generate the strength and speed to keep up.

Less Joint Pain

Stay active without discomfort-our training style is designed to protect your joints.

More Longevity

Build a stronger, healthier foundation so you can thrive in more of life's moments for years to come.

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Be Confident Your Training is Working

You should be confident that the time you spend exercising is making you stronger.

At ALL-IN-15, our data can't lie to you. It will show you how strong you're after every session. We promise to:

  • Build strength safely and efficiently
  • Support recovery and prevent injury
  • Fit seamlessly into your life, just one 30-minute session per week

Be confident that you spend exercising is getting the best results.

Training Technology
See Results in One Weekly Session

Can I really see results in just one weekly session?

It's not too good to be true; it's science.

Our focus on eccentric training—the phase of movement where your muscles lengthen under tension—will get you the desired results in less time.

Imagine doing a bench press: lifting the weight is concentric. Lowering it and feeling the resistance is eccentric.

You can do more in the eccentric.

We optimize eccentric training. A traditional training routine could never do that. Our game-changing equipment was once for only elite athletes. It's now available to you. It offers a smarter, safer, and more efficient way to train.

Our Services

How ALL-IN-15 Compares

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Kineo Intelligent Load

When it comes to your fitness, you should be confident you are going to get stronger. 

ALL-IN-15 delivers superior results by utilizing eccentric training—a proven method to build strength, promote bone health, and improve balance—using advanced technology once reserved for elite athletes.

Here’s what makes us different:
  • Time-Saving Workouts: Get the benefits of a week’s worth of training in just 30 minutes.
  • Customized Training: Every session is customized to your goals and needs, ensuring maximum effectiveness.
  • Safe and Controlled Movements: Reduce the risk of injury with precise, joint-friendly eccentric training.
  • Enhanced Performance: Activate your central nervous system for improved balance, strength, and stability.
No More:
  • Wasting Hours at the Gym
  • Generic Fitness Programs that achieved limited results
  • High-Intensity Workouts That Lead to Injuries

Experience a smarter, safer, and more effective way to build strength.

Your First Session is On Us

At ALL-IN-15, we’re confident you’ll feel the difference after just one session. That’s why your first 30-minute workout is on us—no pressure, no commitment, just the chance to experience the smarter, faster, safer way to build strength, improve mobility, and feel your best.

Discover how our personalized training, powered by science and technology, can improve your mobility, stability, and quality of life in just 30 minutes a week.

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Testimonials

What Our Clients Say

Life-changing results in 15 minutes!

I don't think a workout exists that is more effecient at building muscle in the time dedicated to working out. If you value your time, you will value ALL-IN-15.

Derek H
Entrepreneur

I am recovering from ACL surgery and there is no better place to gain back strength than here. John has been very helpful setting up my exercises to optimize strength gains even while under the restrictions of my knee not being able to do regular free weight training. Thanks to him I am way ahead of the game and I’m recovering faster than ever.

Paul H
March 2024

ALL-IN-15 is the BEST decision I've made for my health and my life. It is the 'YES' you will be forever grateful for! It's hands down the best training to reach your goals.

Riley S.
Athlete

I'm the healthiest I have been in years! Joining ALL-IN-15 has been one of the best health decisions I've ever made to improve my well-being

Alicia D
CEO
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Blog

News & Articles

Learn from experts and understand the proper techniques to focus on your calisthenics

All Blogs
Training
The Overlooked Secret to Athletic Success: Eccentric Training for Peak Performance

Discover the untapped potential of eccentric training, the "overlooked secret" to athletic success. Unlike traditional strength training, eccentric exercises focus on the lowering phase of movements, where muscles stretch under load. This innovative approach boosts muscle growth, enhances power, and reduces the risk of injury—all critical for elite athletes striving for peak performance.

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Training
Unlocking Muscle Balance: Your Guide to Strength, Stability, and Peak Performance

At ALL-IN-15, we believe muscle balance is critical for functional strength and injury prevention. Using advanced Kineo Intelligent Load Machines, our Greenwood Village facility provides personalized eccentric training that targets both strength and stability. In just one 15-minute session per week, achieve muscular symmetry, reduce injury risk, and enhance performance. Discover a smarter way to train. Contact us for a free evaluation!

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Health
A Key to Aging Well: Increasing Bone Density

Bone density declines as we age, increasing the risk of fractures and conditions like osteoporosis. Fortunately, with the right approach, bone density can be increased even in older adults. This blog explores how resistance training, particularly eccentric training, helps strengthen bones, improve mobility, and ensure longevity.

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