More information on Kong Su from the Oom Yung Doe student handbook
KONG SU translates to mean empty hand. KONG SU consists of both
offensive and defensive movements. When these movements are used for
defense you mainly use your forearms like a stick or weapon to block
in various directions, protecting your lower, middle and upper body.
Using KONG SU movements for offense the movements are primarily linear,
you use your hand and feet as weapons to incapacitate your opponent.
The correct practice of KONG SU helps to provide a solid foundation
for learning higher levels of forms and movements These movements
are especially beneficial for younger students, providing a method
to develop external strength quickly. It is recommended for individuals
over 50 to practice these movements lightly without snap as to avoid
stressing the joints.