Originally Posted by
Mark E. Hurling
...The strength of the leg in delivering a kick is critical, and even more so the strength of the supporting leg holding the rest of you up. It seems like squats are the order of the day for that kind of kinetic and supporting strength
... Explosive speed in martial arts, be they in striking or throwing it seems was always better achieved by being able to relax the muscles (especially the antagonists) as much as possible through much of the movement. The last bit before contact is made in a strike, or just when you render your opponent (or attacker) buoyant and free of the ground is when the maximum tension and flexion of the muscle(s) in use should come into play. Otherwise you're just fighting your own internal isometric tension Charles Atlas style. Then of course this has always been easier for me to talk and write about than to actually do well.