The blows in Taekwon-Do are often concentrated onto the edge of the open palm or to the crook of the fingers. It is very important that you should not unleash all your strength at the beginning but gradually, and particularly at the point of contact with your opponent's body, the force must be so concentrated as to give a knock-out blow. That is to say, the shorter the time for the concentration, the greater will be the power of the blow. The utmost concentration is required in order to mobilize every muscle of the body onto the smallest target area simultaneously. This is the reason why the hip and abdomen are jerked slightly before the hands and feet in any action, whether it be attack or defense.
Balance is of utmost importance in any type of athletics.
In Taekwon-Do, it deserves special consideration. By keeping the body always in equilibrium, that is, well balanced, a blow is more effective and deadly. Conversely, the unbalanced one is easily toppled. The stance should always be stable yet flexible, for both offensive and defensive movements. Equilibrium is classified into both dynamic and static stability.