Re Paul Cohen's comment on the locked vs. bent elbow, I commend him for not genuflecting before the two great players who mysteriously use this departure from mechanical efficiency. Tellingly, he states: "Some coaches believe the straight elbow, combined with the shoulder generated windmill swings, creates more leverage and power." [emphasis added]
The pertinent word here is, of course, is "believe." And that coaches would base instruction on belief, unless strongly supported by some kind of compelling corroborating evidence (no Federer and Nadal are not alone enough), gets us to the very problem with coaches generally: when it comes to mechanics, too much belief, too little knowledge. Sometimes I think mechanical instruction ought to be left to the mechanics pros -- namely the Yandells -- of the world, and the coaches should implement that instruction while providing their own instruction in conditioning and practice routines, and building motivation, all of which they (often, but not always) do so very well.
The pertinent word here is, of course, is "believe." And that coaches would base instruction on belief, unless strongly supported by some kind of compelling corroborating evidence (no Federer and Nadal are not alone enough), gets us to the very problem with coaches generally: when it comes to mechanics, too much belief, too little knowledge. Sometimes I think mechanical instruction ought to be left to the mechanics pros -- namely the Yandells -- of the world, and the coaches should implement that instruction while providing their own instruction in conditioning and practice routines, and building motivation, all of which they (often, but not always) do so very well.
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