review on a remarkable study in the British Journal of Sports Medicine that looked at the efficacy of pronation control shoes in preventing pain and injury in runners, Christopher McDougall published a post of his own on the same study that was provocatively titled "Breaking news from Nike: We’ve been talking a lot of crap, and selling it."
In his post, McDougall states the following about the BJSM study: "Essentially, the top scientist at the world’s top sports shoe company is attached to a study that suggests the whole running shoe business is built on nonsense." I've been mulling this over for the past 24 hours, and the implications of this paper are really quite amazing.
First, it's important to realize that this study was supported by Nike. In the Acknowledgements section of the paper, the authors state that they would "like to acknowledge both Nike Canada, for donating clothing to our clinic leaders, and Nike Global, for providing footwear and funding for this project." In the Competing Interests statement they state : "A research partnership grant from Nike Global was awarded to MBR, JET and KM to conduct this investigation. GAV is employed at Nike Global." What does this mean? It means that Nike was well aware that this study was being conducted, and presumably knew of its results.
So why would Nike, the biggest sports shoe manufacturer out there, help to produce a study that essentially shows that all of the pronation control devices that we base our running shoe selections upon are ineffective at preventing pain and injury in the people who are supposed to be wearing them? Let me speculate:
1. Evidence is mounting that these shoes are ineffective at doing what they claim to do. The BJSM study was just one of several recent studies showing basically the same thing (there are a couple of large studies conducted by the military that are referred to in this NY Times article by Gretchen Reynolds - I have them and am working through them now). Other bloggers have discussed the problems with current shoe designs (e.g., this great post by Steve Magness and this one by Amby Burfoot), and hints at the questionable benefits of pronation control shoes have been present in the scientific literature for some time now (see this 2001 paper by expert biomechanist Benno Nigg).
2. If the shoe industry is changing, as suggested by McDougall in another post on his blog, wouldn't you want to be in position to lead that change? If Nike was fully supportive of the publication of this paper, then I give them credit for helping to produce this data - it's the right thing to do from a consumer standpoint. It's clear that we need to rethink how we design and choose our shoes, and it would be a brilliant business move on Nike's part to push the market and out-maneuver its competitors.
3. Nike is well positioned to adapt to a changing market. They are a huge company, can probably change production directions more easily than anyone else, and already have an established line of transitional and minimalist shoes (the Nike Free line). If traffic to this blog is any indication, the new Nike Free Run+ is a runaway hit, and the Nike Free 3.0 recently returned from its seeming demise. I wouldn't be surprised if a Nike Free 1.0 is already in development - I'm hopeful that it is.
Although all of this is admittedly speculation and guesswork on my part, as a shoe geek it's certainly interesting to think about. If Nike is indeed placing itself to lead a change in the market, other manufacturers had better take notice or be left in the dust as Nike runs past them (in truly minimalist shoes).
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