Originally Posted by toly
Thank you very much for comments about the article. But I think you missed the main data from the article. The diagram below illustrates the racket speed which produced by the pronation and internal shoulder rotation |VLH|. If the beta angle = 45 degrees, |VLH|= 105 mph. And this speed is created practically exclusively by pronation and internal shoulder rotation. Tiw these motions are the most important.
Is 160 then the maximum achievable serve speed by a human?