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View Full Version : folding the tossing arm


Rickson
06-07-2005, 08:15 AM
When's the best time to fold the arm to the stomach? I tend to do it a bit early, but I'd like to time it right. I start folding before my step up and backscratch.

Marius_Hancu
06-07-2005, 08:55 AM
keep the left arm high up much longer
(I am trying to keep it up until the right arm starts attacking the ball)

check Sampras
http://www.ee.surrey.ac.uk/Personal/Q.Luo/tennis/sampras02.swf
(scroll button on the left to adjust speed)

you have a windmill mechanism there, in which the right arm replaces the left arm in the sequence

Rickson
06-07-2005, 09:04 AM
Good clip, Marius.

TwistServe
06-07-2005, 09:08 AM
Sampras is the king!

papa
06-07-2005, 10:57 AM
Although the tape of Sampras is interesting, I don't think there is much of an arm fold involved in the clip. Looks to me like his arm is actually moving to his side and behind as compared to being folded into the stomach.

I like keeping the tossing arm high and straight but I think the fold (time to bring the arm in) seems to vary from player to player - at least to some degree. Its also one of those things that almost is instinctive after people have served for some time.

Marius_Hancu
06-07-2005, 06:58 PM
Although the tape of Sampras is interesting, I don't think there is much of an arm fold involved in the clip. Looks to me like his arm is actually moving to his side and behind as compared to being folded into the stomach.

Yes, see comparison with Krajicek:
http://www.cwtennis.com/virtual/theserve.html
"Notice how Krajicek tucks his left arm in close to his chest as he makes contact. This helps to slow the torso down and create more speed via a whipping in the shoulder, arm, wrist and finally the racket head. This is more biomechanically efficient for maximizing power that Sampras whose left arm does not tuck in as closely to the body, then flier back behind him after the hit. "