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The Inverted W

The Inverted W is the term that is used to refer to a family of problematic pitching arm actions. These arm actions include the...

The Inverted W is primarily responsible for the injury problems of a large number of pitchers, including...

As I explained several years ago in my analysis of Mark Prior's pitching mechanics, and more recently in my analysis of Stephen Strasburg's pitching mechanics, the Inverted W contributes to injuries in pitchers by creating a timing problem.

The Inverted W increases the likelihood that the pitcher's arm will not be in the proper position when their front foot plants and their shoulders start rotating. That will increase the load on the elbow and the shoulder, providing a short-term velocity boost but, in the long term, significantly increasing the risk of injury.

The Epidemic
The EpidemicAs a result of the recent discussion about the baseball pitcher injury epidemic, I have put together a piece called The Epidemic that gives my view of what is happening, why, and what coaches, parents, and physicians can do about it.

 

The idea that the Inverted W is problematic is controversial, and I have addressed some of the objections to the theory in my...

However, in an effort to convince people that the Inverted W is indeed the problem that I say it is, I am in the process of putting together an...

...that goes into much more detail about why the Inverted W is problematic, how to prevent it, and how to fix it. One of the things that I discuss in that webbook are some of the relevant studies...

If you are interested in helping to fund this project, I have put together a page for crowdfunding partners.

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