Features - Exxentric kBox4 Pro Manual

kBox manual v 8
Principle of the kBox
Resistance
Eccentric Loading
Mobility
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The kBox is a 'flywheel exercise device'. Which muscle is
being exercised depends on which exercise is being
performed.
The principle is that through muscle force you accelerate
and decelerate a flywheel (or flywheels). Exercises with
high intensity and high forces stimulate muscles to
increase in size and the nervous system to increase
activation of the muscles. These effects together increase
strength over time if the exercise is repeated regularly.
The resistance is variable and unlimited. The flywheel has a
specified inertia and there is no upper limit to how much
kinetic energy you can produce in the flywheel motion. You
can think of the flywheel as a weight that weighs more if
you put more effort into lifting it. Resistance is variable so if
you pull less, the flywheel will resist less.
Every repetition in a maximal set is maximal instead of only
the last one which is the case with traditional weights. This
results in a higher training efficiency, earlier onset of
strength increase and also hypertrophy.
The kBox provides for increased eccentric workloads. The
skeletal muscles can produce higher force in the eccentric,
or negative phase. This is difficult to take advantage of with
traditional weights, which always weigh the same.
If you accelerate the flywheel during the concentric, or
lifting phase and then decelerate in a shorter amount of
time, you will have to produce a higher eccentric force. This
will be similar to lifting weights that would normally be too
heavy unless assisted by a training partner(s) but
executing the eccentric (lengthening) phase by yourself.
Check Training Guide for more information on eccentric
overload.
The kBox is mobile in comparison to traditional weights.
Squatting with the kBox is equivalent to traditional squats
which would require a barbell, weights up to 500 lb. for a
strong lifter which is practically impossible to carry around.
In addition, you don't need rubber mats or racks to use the
kBox.
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