Originally Posted by luishcorreia
Yes.,exactly that. Do not know why but i feel a difference when I do that...
This type of action, a flexion prior to an extension (or vice versa), is sometimes seen in martial arts, other tennis strokes or other sports. It may have something to do with the stretch-shortening cycle
(SSC). You might be able to incorporate something of a "whip effect" with this SSC action.
I suspect that there is an optimal amount of wrist flexion prior to the trophy phase. If you employ an excessive amount of flexion it could possibly be counterproductive. It might also complicate the timing of your racquet preparation.