JohnYandell said:
BB,
Go look in the Stroke Archives on Tennisplayer. Think you'll be surprised. I wrote an article recently about this and I think the key is to distinguish between the hands and the racket tip. The tip can be quite high, but the hands stay at waist level or a little higher--take a close look at Agassi because he really does NOT come up with his hands. Look at Rafael as well... Kim is higher than most--you're right about mid tricep.
John
John!
Very good. Thanks for asking me to take a second look. My problem? Camera angle. It was the camera angle on Clijsters backhand that made me think the "loop" was going on. Here is what I did.
I immediately went to Serena's backhand thinking I had you. I loaded a center backhand video sequence on your site and was salivating thinking you would owe me a beer in Indian Wells about this loop thing. I could have sworn I had you.
Then...I went to another pro's backhand (I think it was Davenports) whom I also thought had a loop. But this time I chose to use a side view camera angle. It felt like someone died. I played it over and over again, slo motion and fast motion - no loop. Damn, I thought, I just saw it with Serena. So I went back to Serena's stuff but this time ran side view angle clip. I was pretty sure I was going to be right but soon discovered I was not.
It was an optical illusion! It was the camera angle that did not give the accurate story. I went through everyones backhand - no loop.
Now, there were differences in how high the hands came up. But for the most part the hands went back, then the wrist angle changed as the hands went down and then forward.
Bottom-line, it was the racket head that was making the circular looking pattern rather then the hands. If you lose the hands behind the body (due to camera angle) the mind fills in the movement of the hands with a loop. This is a mind trick. It is not really happening much like the "loose" wrist myth.
I did see some players who were very conservative with their hand movement relying on that change of direction to generate racket speed (agassi). Some players (as mentioned) raised their hands for a drop as they angled the racket.
So that was a good lesson! Thanks! You have a very productive site being able to see the shot from different camera angles.