Page 63 - Jennifer Chieng Badass Boxing Workouts

Despite the equal distance between the highest possible
vertical point of the tire and the floor, there is a clear

distinction in the resulting impact on the tire. In the upward
trajectory, the unequal and opposite tension between the
weight of the tire and the resisting force (strength) causes
the object to move in the direction it is being pushed. The
impact in this scenario is low, as the force against the tire

pushes the object at a much slower speed despite the
strength generated to influence this effect. In the downward
trajectory, the absence of a resisting force (strength)

against the weight of the tire causes the object to
accelerate. As the tire hits the floor (the resisting force), the
force of the impact is high because the tire collides against
the floor with an accelerated speed that ends abruptly.

In boxing, you can generate power through speed. A fist
weighs far less than the rest of your body and therefore can
reach the target much quicker if supported by the proper
body mechanics. Your hips generate a great amount of
power as proximal and larger muscles in your legs and

buttocks produce strength. Through rotation of the hip and
extension of the arm, speed is produced and your punch
travels at a high velocity until it connects with the desired

target. Upon connecting with the target, the acceleration of
your punch stops abruptly due to the sudden presence of a
resisting force, i.e. your target, and in this exact moment,
the force of the impact is high.

You must retract your arm after your target absorbs the

maximum impact of your punch. Doing so not only ensures
you keep a strong defense to protect yourself, which is a
good habit to develop, but also effectively resets you back
into a balanced and neutral stance to execute additional

punches.

Muscular Endurance