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Exxentric Kbox 3 Flywheel Training

Exxentric Kbox 3 Flywheel Training




Flywheel Training

Supported by scientific evidence, Flywheel training increases the effectiveness of your strength training by applying the inertia of a flywheel instead of simple gravity to create optimal resistance. Here's how it works:

Whether your goal is to improve athletic performance, prevent or rehabilitate an injury or improve your general health and fitness, flywheel training and the kBox training device offers a number of important advantages.


Methods & Exercises

The kBox gives you opportunities to perform effective standard exercises as well as advanced methods for eccentric, concentric and isometric training. Read more or go straight to videos.



The Exxentric kBox is being used by athletes and therapists for a wide range of flywheel training applications. Understand the benefits in your field. Read more.


Physical Principles

With flywheel training (also known as isoinertial or yoyo) instead of lifting a weight against gravity, you accelerate or decelerate a flywheel. This way, the force required in each motion is variable as it is based on the inertia and the kinetic energy of the flywheel. Read more.


Physiological Advantages

Flywheel training offers many advantages over traditional strength training. The resistance is variable and unlimited. Eccentric overload can easily be achieved as well as mobility, ergonomy and economy. Read more.


Scientific Evidence

Multiple academic studies have provided support for flywheel training in recent years. We present a selection of some of the more important studies in the field. Read more.


kBox 3

The kBox 3 is our premium device for flywheel training that is based on a decade of experience and academic research.

First introduced as the Kinetic Box in 2011, the kBox flywheel training device is applied by performance coaches, physiotherapists and personal trainers worldwide.



With the kBox, you work against the variable inertia of heavy steelflywheels, instead of lifting dumb weights against gravity.

The kBox is renowned for its genial application of eccentric overload in regular training as well as its variable resistance, both backed by growing scientific support.

It also offers a number of important practical benefits, including:

  • It is a truly versatile multi-purpose training device, for exercises training both upper body, core and lower body.
  • It is completely portable and easy for one person to carry or stove away.
  • It’s kMeter app-based wireless feedback system can be used to measure and save actual power output and more.
  • Switching between drills and users is quick and hassle-free.
  • The kBox practically doesn’t emit any sound at all.

These benefits result in increased efficiency of training programs while lowering the total costs as compared to alternatives. Read more.