What is pronation?

[Omisoshiru]

Well I have heard that pronation helps the speed of the serve but there was one BIG problem, I have no idea what pronation is. Can someone fill me in here :confused:

[Koaske]

Nice Oxford :D

Pronation is like turning your arm so that your palm is facing the side fence.
It's a little hard to explain so take a look at this: http://www.hi-techtennis.com/serve/develop_kicker_3.php
Some pronation comes naturally if you serve sideways and with a continental grip so you don't really have to think about it.

[tricky]

In tennis sense, pronation and suppination describe forearm rotation.

If you turn a door knob counterclockwise, that's pronation. If you use a continential grip with the serve, you already do some pronation so that the racquet face hits the ball properly. Basically visualize making a "thumbs down" toward the end of your serve. That's pronation.

[shindemac]

Why do we need 2 threads on the front page about the same thing?! Didn't we explain it clearly enough?

http://tt.tennis-warehouse.com/showthread.php?t=130420

[Omisoshiru]

err sorry, i didn't know there was the same thing up

[fearless1]

http://www.davidlnelson.md/anatomy12.htm