Adam Harstad said:
FF Ninja said:
CalBear said:
Judge Smails said:
What?? Tell that to Arian Foster. Or Larry Johnson.
What about them? Arian Foster has just 1100 career carries. (Compare to Peterson with 1900+ or Gore with 2000+). Larry Johnson was the supreme example of a low-workload guy; he was age 26 before he had a season with more than 120 carries. And he only had two seasons with over 200 carries in his career.
I don't feel confident one way or the other (age vs. mileage) but he's pretty obviously talking about high mileage over a short time span rather than career. It wasn't exactly a cryptic post.
Foster, LJ, and Ricky all had some very high use seasons and didn't look the same afterwards (or so some will claim). All three teams got worse the year after the high mileage season, so a drop in production was expected. However, LJ went from dominant to FA pretty quickly. I guess time will tell how Foster ends up, but it isn't looking good.
The original context of the discussion was someone calling Pierre Thomas a low-mileage player. Clearly that was in reference to his entire career, not just his single-season usage in 2012.
Agreed, but calbear wasn't replying to the Pierre Thomas mention. Obviously Foster and LJ didn't have large career totals, but did have large individual season totals.
Doesn't really matter. Nobody seems to have been able to crack the code on this topic. See Curtis Martin, Thomas Jones. Situation and individual physiology matters the most. At age 29, I think Thomas can still be as relevant as ever - not that he's ever been all that relevant. It's not like he's going to fall off a cliff and Ingram will inherit his 100-110 carries per year. I'd like to see Ingram get 250+ carries. I just don't think that PT's age will impact the likelihood of that happening in 2014.
There's no evidence (really, none) that large load in an individual season leads to increased likelihood of decline or injury in the subsequent season. Most running backs decline in subsequent seasons no matter what their load was. Certainly anyone who's had a record-breaking season is likely to have less of a record-breaking season the next year, again, regardless of number of touches. And of course one can always use multiple-endpoint fallacies to find a spot where it looks like there's a causal relationship between whatever statistic you choose (yardage gained, number of touches, yards per carry) and a decline in subsequent years, but that's simply a consequence of the bell curve at work. It doesn't have predictive value.
I remember someone (Paine, maybe?) looking at it on a more granular level, looking if extreme workload during a very short stretch increased chances of injury immediately afterwards. Something like if a back gets 100 carries in a 3-week span, what's the likelihood that he declines in effectiveness or gets injured immediately thereafter. That was an interesting line of thought, although I don't recall whether he ever finished the analysis and offered his conclusions.
No matter what, the "workload = decline" hypothesis seems incredibly plausible, whether it's about career workload, season-long workload, or game-to-game workload. Of course, few things are more dangerous than a plausible-sounding hypothesis that's short on supporting data.