Roundhouse Kick with instep
First, the knee would be drawn straight up in a chamberlike position. Then, the knee is rotated so that it is nearly parallel to the ground and the kicking hip is simultaneously rotated towards the opponent. The rotation of the hip, together with the snapping of the leg forward, gives the kick its awesome power. Opponent is struck with the instep rather than the ball. The chief target is neck.
Nice article.
Keep it up guru.