When you teach beginners, it's very difficult to explain how to coordinate hand strike with body. Coordinate with which part of the body, and how?
I try to use just 1 simple concept to explain power generation. IMO, to coordinate hand with foot is the easiest way. After that, I can then add detail such as:
- back leg bending,
- weight shifting.
- hip rotation,
- body twisting.
- ...
I may exaggerate the foot stepping so the stomping sound can match with the hand striking (for training purpose). In fighting, both feet should be just "sliding".
The training can be as simple as:
- Step in leading foot.
- Step in back foot and punch at the same time.
In the following clip, the hand striking is coordinate with the leading foot landing.