Physiological Advantages

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Strength Training Basics

Strength training can be defined as a limited number of repeated muscle contractions against some form of resistance, producing high force.

This stimulates hypertrophy (muscle growth) and increased activation, by the nervous system. These effects together give an increase in strength over time, if the exercise is repeated regularly.

Flywheel Training Advantages

Flywheel Training 
Advantages

  • Inertia > Gravity

    While traditional weights are lifted against gravity, flywheel training creates resistance through inertia working like a yoyo. So, the harder you pull – the harder it pulls back.
  • Variable Resistance

    In contrast to weights, Flywheel training offers variable resistance. This allows you to train maximally throughout every rep and the entire ROM without sticking points.
  • Eccentric Overload

    Flywheel training allows you to apply larger forces eccentrically than concentrically through advanced techniques – resulting in greater strength gains.
  • Isoinertial

    Flywheel training maintains a constant inertia throughout the entire ROM – allowing for the production of maximum loading at every angle of the movement.

Among the advantages of flywheel training, variable resistance may be the most important, resulting in proven gains. The resistance spectrum of a kBox is completely unlimited, as it depends solely on the force you use. Hence, flywheel training is not just solely for elite athletes or rehabilitation. The resistance is also variable between repetitions and you can easily work maximal repetitions all through the set, increasing your hypertrophic response.


Scientific Evidence Flywheel Training

Further Reading

Further 
Reading

Inertia in Flywheel Training

Understanding the concept of inertia is key to reaping the benefits of flywheel training. Instead of using weights, the resistance in flywheel training is created through the inertia of a flywheel which is rotated with muscle force.
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The Flywheel Workout Zones: How to Pick the Right Inertia

In flywheel or isoinertial training, choosing inertia means more than deciding between light and heavy. The inertia resulting from the size and number of flywheels impacts the training adaptation you get. Together with your workout intensity, the inertia chosen decides your Flywheel Workout Zone.
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Advanced Methods

To develop the basic exercises, you can apply a set of methods to secure optimal eccentric and concentric loads, as well as isometric training and power testing.
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Harness Ergonomics

The pressure over the shoulders when doing traditional barbell squats is a big limitation for many. Often, serious bruising can be seen after heavy sets. Furthermore, the discs in the lumbar spine are under a lot of pressure, even if the athlete has good technical skill. For tall people, individuals with a weak midsection or persons with back problems, squatting is almost impossible and may be accompanied with a lot of discomfort or pain. With the kBox, you are able to work out with maximal or closer to maximal intensity, since the harness equalizes the pressure over the shoulders and also relieves the lumbar spine of pressure. With a less perfected technique, the harness puts the force over the lower back, instead of the shoulders, which shortens the lever and the momentum drastically on the lumbar spine without compromising the training effects in the muscles of the lower body. The kBox is also almost completely silent and the risk of bumping into others is low.
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