Introduction - Exxentric kBox4 Pro Manual

kBox manual v 8
What is it?
How Does It Work?
exxentric.com/support
INTRODUCTION
The kBox is a self-contained, compact exercise platform for
various strength movements. It is a flywheel exercise
device and uses the moment of inertia to provide a high
and variable resistance in both the concentric and
eccentric* movements of the user.
*) concentric muscle action is when the muscle is being
shortened while an eccentric muscle action is when the
muscle is being elongated during action. In some literature,
concentric and eccentric is called positive (shortening)
and negative (lengthening) phase.
The kBox has an adjustable-length drive belt wound
around a shaft located beneath the platform. Different
combinations of flywheels are mounted on the end of the
shaft.
Using hand grips or a harness attached to the Pulley, the
User pulls to accelerate the flywheel and then resists to
decelerate the flywheel as the Belt winds in the other
direction.
All kBox models has a recoil auto-retract system. A Drive
Belt Length Adjustment Button allows for quick adjustment
of the Belt length for the type strength work desired. Push
the button to release and adjust length or just push button
to automatically retract the belt. An extension belt is used
for overhead work (for example military press).
6