Doumit's injuries

(reposted from the comments of the Doumit thread, cause I think it's an interesting question and didn't want it to get buried)

Are guys who are injury prone "unlucky"?Or is there something in their technique or skill set or genetic disposition that makes them susceptible to injury?

I don’t like dismissing stuff as “bad luck.” It implies there’s nothing you can do about it, it’s just a random roll of the dice, and so you don’t even bother to look for ways a player might keep himself from getting hurt. If your best hitter was, say, your center fielder, but he had a habit of running into walls when chasing fly balls, so that he was constantly hurt and out of the lineup, you’d try persuading him that having his bat in the lineup all the time was more important than the three or four balls he has an outside chance of turning into outs rather than doubles, right?

Doumit’s had a ton of injuries, as implied1 so helpfully shows by his research, and certainly foul tips off the hand and stuff like that are occupational hazards for catchers. But then, why don’t ALL catchers spend hundreds of days on the DL? What are catchers who catch 130 games a year doing differently than Doumit? What was Jason Kendall doing different? What did Pudge do different? Were that just extraordinarily “lucky” or was it something they were doing, or not doing, that Doumit might learn?