2010 Disabled List: Injury Locations

In a couple of previous articles, I looked at the 2010 disabled list data for all the teams and player positions. I have finally gone through and compiled the data on body part locations.

Last year Josh Hermsmeyer compiled an injury database with 2002 to 2009 DL information. In it, he set a format for selecting the various body parts. I have gone ahead and used the same categories. I have made another spreadsheet (Sheet 2) with these various designations for people to use. I will format the 2010 injury information so it can be combined with Josh’s data once the new retrosheet data set is released after the playoffs are completed.

To make the body location data easier for interpretation, I have combined Josh’s categories into a few broad categories:

Arms and Hands – hand, wrist, forearm, upperarm
Elbow – elbow
General – generalmedical
Hip – hip
Legs and Feet – ankle, foot, knee, thigh, lowerleg
Neck and Head – face, head, neck
Shoulder – shoulder
Trunk – upperback, back, chest, abdomen

First, here is the injury location data for total days and trips for pitchers and hitters to the DL:

Location_days

Location_trips

No real surprise here with pitchers dominating days lost to elbow and shoulder injuries and hitters mainly having injuries to their arms and legs.

Finally, here is a comparison of the average number of days lost for pitchers and hitters.

Location_ave

Pitchers take longer to get off the DL, excect for hip and general injuries. Well that is it for today. My next project is a little more ambitious as I want to find the chances of a player going on the DL knowing a set of conditions (i.e. previous injury history, age, etc).



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Jeff writes for FanGraphs, The Hardball Times and Royals Review, as well as his own website, Baseball Heat Maps with his brother Darrell. In tandem with Bill Petti, he won the 2013 SABR Analytics Research Award for Contemporary Analysis. Follow him on Twitter @jeffwzimmerman.


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SensualSharting
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SensualSharting
5 years 9 months ago

can’t see pictures

Alex Walsh
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Alex Walsh
5 years 9 months ago

Awesome work. Do certain types of injuries more often strike certain age groups of players?

Everett
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Everett
5 years 9 months ago

One interesting thing I noted is that while pitchers lost more days to shoulder injuries, hitters actually had more trips to the DL due to shoulder injuries.

Hank
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Hank
5 years 9 months ago

Yes that did standout – Jeff is this real or a mistake? Hitters had 3x more DL trips for shoulder issues than pitchers? (maybe the numbers got reversed by accident?)

It also does not seem consistent with the 3rd graph. (The 3rd graph should essentially just be the 1st graph divided by the 2nd)

There must be a mistake somewhere in one of the graphs on the shoulder data point.

Keith
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Keith
5 years 9 months ago

The body parts labels in the text of the document state “Arms and Feet,” which should be “Arms and Hands.”

FrankFeelings
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FrankFeelings
5 years 9 months ago

Did you intentionally use the Mets’ team colors for this injury chart? Or was that a subliminal choice?

jklender
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jklender
5 years 9 months ago

+1

Mike
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Mike
5 years 9 months ago

Really interesting stuff, especially your next project. Thanks.

baty
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baty
5 years 9 months ago

So, how could data like this be translated and used to argue the decision for or against having a 7-day DL only for concussions?

It seems maybe unnecessary to me, to implement such a specific rule with the lack of head injuries that take place throughout MLB. I understand they probably want to give teams incentive to report and treat such medical issues, but limiting the trip to a specific head related injury seems really tricky to regulate and possibly easy to abuse.

is there data for…
injury locations by fielding position?
average injury durations for a location related to fielding positions?
injury locations from a hitting, base running, or fielding situation?
and even a break down for situations of how concussion related injuries usually occur

Nice

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