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Old 01-07-2013, 04:43 AM   #19
Chas Tennis
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Join Date: Feb 2011
Location: Baltimore, MD
Posts: 2,582
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Quote:
Originally Posted by toly View Post
Stosur Serve Top View

http://youtu.be/wG-Lc-bO4a8
From Reply #56
http://tt.tennis-warehouse.com/showt...59#post7069659

Quote:
Originally Posted by toly View Post
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Let’s analyze Stosur and your arm actions before contact.



In pic.1 Stosur longitude axis of the racquet is parallel to Target Plane. In pic.3 longitude axis is perpendicular to the Target plane. She rotates her racquet by using internal shoulder rotation (ISR) around 90.

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This Stosur serve is during a match and shows the moment of ball contact. Probably a kick serve.

Last edited by Chas Tennis : 01-07-2013 at 04:49 AM.
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