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Philip Picuri "Phil" (Switzerland)

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ITF Biomechanics of Advanced Tennis
ITF Biomechanics of Advanced Tennis
by Bruce Elliott
Edition: Paperback

5.0 out of 5 stars Great book for advanced players!, 28 May 2009
This is an excellent book to help an advanced player perfection his technique. The biomechanical principles are well layed out by very competent contributors.

How to achieve high racket speed?

The biomechanical elements:

* elastic energy: muscle shorten-stretch cycle (for example: on forehand - supination of forearm prior to hitting in order to accelerate pronation on impact)

* counterforce (pushing against ground with legs for serve, smash, groundstrokes)

* inertia (resistance to movement): linear and radial (on one-handed backhand, keep your elbow bent and close to body at start of forwardswing to increase speed)

* momentum: linear - step into ball, angular - rotate into ball
balance

You can apply this for the serve and groundstrokes. The more of these elements you incorporate, the more racket speed you achieve.

It all makes sense, plenty of examples on the application of these principles. Highly recommended. One of the best I have ever read.


Porsche 993 - King of Porsche: The Essential Companion
Porsche 993 - King of Porsche: The Essential Companion
by Adrian Streather
Edition: Paperback
Price: 80.00

23 of 24 people found the following review helpful
5.0 out of 5 stars Great book for porsche fanatics, 1 Feb 2006
Finally, a great book for a great car, the Porsche 993. Adrian has done a teriffic job of compiling all the information you could possibly want to know about the Porsche 993, the ultimate air-cooled Porsche. I own a Porsche 993 Carrera 4S, and have really been searching for a good book on the 993. Most of the books I have seen are just your usual, glossy, coffee table books, with lots of neat photos, but no meat and substance in respect to technical information. This book has a wealth of information, very well presented, in a concise manner and accompanied by photos and diagrams. It really tells you all you need to know on this wonderful car, and am sure that it will also save you money in the long run, whether you are looking for a used 993, or are considering tuning, or want to do an oil change yourself. All about the engine, running gear, suspension, wheels, etc. This one single book is better and has more useful information than all the previous books on Porsche I ever owned! Highly recommended!


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