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With all the breaking balls being thrown and big pitch counts in the recent LLWS coverage, we've been discussing this topic on another (local) board. I know its been discussed round-and-round here before, but we uncovered an article that seems to have some data behind it, so I thought I'd post it for some discussion here. The full article costs $25 to read from a journal so I didn't get the whole thing, but here is a link to a wider summary and some pasted text from that summary below.

Thoughts?

http://www.asmi.org/asmiweb/research/youthbaseball.htm

...For decades, experts have argued that the number of pitches thrown, types of pitches thrown, and quality of pitching mechanics are related to arm pain and subsequent injury. These relationships, however, have never been investigated scientifically.

To elucidate how pain develops in pitchers, the USA Baseball Medical & Safety Advisory Committee sponsored an American Sports Medicine Institute study of factors related to shoulder and elbow pain at the youth baseball level. In this study, participants included 476 youth baseball pitchers who volunteered to be followed for one season. These 9-14 year old pitchers were from youth baseball parks throughout Alabama, including Little League, Dixie Youth, and Birmingham Metro League parks. Coaches and players were interviewed before the season, after each game, and after the season, thereby providing the very first account of pain and playing habits during the course of a season. The major findings of the study were:

* The incidence of elbow or shoulder pain increased with the number of pitches thrown in a game.

* The incidence of elbow or shoulder pain increased with the number of pitches thrown in a season.

* Pitchers who threw curveballs or sliders had greater incidence of pain than those who didn’t.

* No relationship between poor mechanics and increased risk of pain could be established.

Based upon the results from this study, it is recommended pitchers between 9 and 14 years old do not throw the curveball or slider. These pitchers should utilize the fastball and change-up exclusively.

...While this study presents new, valuable data, it represents only a foundation for future research. Prospective studies are needed to correlate pitching parameters (pitch counts, pitch types, and pitching mechanics) with injury (surgery, time missed) developed during a career.
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Today everybody tells about arm injuries to pitchers. At themajor league level were there less injuries way back when the pitch counts were high and pitchers pitched more innings. I recently heard Robin Roberts on A Phillies broadcast asked how many complete games he had. The answer 309. I just looked up Warren Spahn he had 363. did they do something right at an early age or just freaks of nature. Did they have sore arms or just pitched through it. the numbers are just amazing.

We talk about the number of pitches thrown at the youth level. How many is too many. If for sake of argument you are throwing a lot of pitches and not throwing properly(yes there is a proper way to throw for all positions) I think you are asking for trouble.
Last week someone posted a link for USA about articles on this. Could that person be so kind as to post the link again.

Justbaseball,
Thanks for the info. Interesting thing I found yesterday. I went back to the "srapbook" and found an article from 2002 on wood bat in Jupiter and the names of pitchers who threw 90,91,92, 93 and 94. These players were 2003 and 2004.
Many of the harder throwing pitchers (some college, some minor leagues) have had shoulder and TJ surgery, directly before or after they were signed or in their freshman year.
Will......a rule of thumb that I have been recommending when doing clinics for youth coaches in our area is something that I have heard from the Detroit Tigers pitching coach Bob Cluck.....has has done lots of youth pitching instruction in the San Diego area, I believe. He says that if you multiply a kid's age by 6 then the result should be his limit for an outing. Example: 12 y.o. pitcher X 6 = 68 pitches.

TPM.....can you be more specific about what you found out about the 2003-2004 pitchers who have had arm problems? Such as: how many pitchers/how many have had surgeries, etc.?

I am curious to know that information! Thanks!
quote:
Originally posted by mtownfan:
Will,
I am wondering the same thing. One Ol' Hoss Radbourn had 60 wins and pitched the whole game almost everytime out. Until just recently if yu couldn't go 9 that was a knock on you. I don't know how they did it, but I'd sure like to.


As kids, they played every day from sun up to sundown. They played in an empty lot, they threw the ball up against the house, they just played.

Not many kids do that any more.
Will/Redbird

I am with you---the guys like Roberts, Spahn, Satchel threw and threw but they threw all the time--not necessarily pitching but just throwing every day

The Braves staff throw every day--how many arm problems have they had--very few


The kids today NEVER play catch just for the sake of playing catch

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