painless serve
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The link
Please click the link to see how it works
and to understand my question
julian mielniczuk
usptapro 27873
Courtside Tennis Club,Ma,Bedford
juliantennis@comcast.netComment
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Another video to watch
Probably a better video for our purposes is one of Federer in the article
Now let's look at the toss, body turn and leg action. In the first article on Roger Federer's serve we looked at his starting stance, his wind up, his racket drop, and the path of the racket upward to the ball. We concluded that in many aspects his serve was a better model than more...
in the paragraph entitled
"The Arc and the Contact Point".
The Roddick's video does NOT show a ball well enough IMHO.
It looks that a contact point FOR FEDERER is more 11 o'clock than 11:45.
We assume that a clock is facing a player ( Federer in this case).
It is possible however that it shows a Federer's second serve,NOT
the first one.
One can do some calculations assuming the depth of a toss
being 4 feet and the length of the rainbow toss on THE FIRST serve ( I believe) being 2 feet.
Additionally there is an issue whether one can calculate an angle
from ONE ONEDIMENSIONAL picture only-
i.e TWO pictures from two different cameras would be better.
PS
Pete and Greg: more topspin equals more "weight," but not always. In the first "heavy ball" article on the serves of Pete Sampras and Greg Rusedski, we found that--everything else being equal--a higher topspin component in the serve appeared to produce a heavier ball at the time of the return. Our data showed that the...
is of a related interest as well
julian mielniczuk
usptapro 27873
Courtside Tennis Club,Ma,Bedford
juliantennis@comcast.netLast edited by uspta146749877; 08-07-2009, 08:10 AM.Comment
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It worked on my computer so I'm a little confused.Please click the link to see how it works
and to understand my question
julian mielniczuk
usptapro 27873
Courtside Tennis Club,Ma,Bedford
juliantennis@comcast.netComment
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Comment
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everyone has to pick a toss position based somewhat on balance and flexiblity I guess?
the more important point in the link is to look at the line of the upper arm as it relates to the line of shoulders. You can almost draw a straight line from one shoulder to the next and straight on to the elbow at contact.
So the upper arm hardly passes the plane created by the 2 shoulders at cp.
IMO, this is important to protect the rotator cuff.Comment
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The reason I asked about carving is that the carving motion seems to be related to making the V angle too tight towards the end of the stroke.
The pronation type movement seems to come from the hand and arm moving out and clearing for the shoulder to widen the V angle we discussed.
I'm not saying you can't carve and protect the shoulder, but I think it may be a challenge, along with costing you quite a bit of important racket head acceleration.Comment
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