One interesting topic when we look at how movement and body mechanics
work to provide optimum force is the idea of force leaking from individual
joints during movement. These movements often contradict the overall goal of a movement and are normally confined to a single joint. They can be thought of as cracks or breaks in the power of a motion. Although small in volume the leaking of power from, for
instance the elbow, can result in much lower overall efficiency of the limb
at transmitting force in a certain direction.
For instance we say that Pi Quan in xing yi has the ‘heavy
elbow’ in order to keep the direction of force down and maintain the optimum
amount of power expressible in the required direction. However this Pi Quan
movement gives us a good opportunity to examine what is meant by power leaking
from a joint.
In the example below we see a diagram of Pi quan with heavy
elbow, and pi quan with extending elbow.
In Figure 1, we see the back arm drawing back and around and
the entire high arm structure maintaining its angles and expressing cleanly
downward with no power leaking in the upward direction.
However in figure 2 we see a flatter expression of Pi Quan where
the elbow is being used to extend the power forward. In this example the result
is a leaking of power in the upward direction from the elbow. This ‘up’ force
expression in the elbow will reduce the total ‘down’ force in the Pi Quan
movement. This is an example of force leaking from a single joint within the
totality of the movement.
It is possible to extend the elbow while minimising the
amount of force lose within this movement. You have to be aware of when the tendons
are still in use and when they are too extended to be utilised. It is important
that the nature of the frame is recognised and the force isn’t allowed to
extend too far outside of the structure.
This is not to say that the there shouldn’t sometimes be
opposite directional forces in movement, indeed there normally SHOULD be
opposite forces happening. What this highlights is essentially a crack or break
in the efficiency of the body mechanics.
Such leaking force occurrences are normally limited to a
single joint or single point of the body. Our aim is to minimise these occurrences
of force leaking out of our frame and maximise the body mechanics at work.
Check your frame in your art and see if you can feel where power is leaking from certain areas of the body.
Happy training.
Chris
