Nike insist their new trainers improve your running speed by 4%. I was quite interested in this, especially as I've been getting involved recently in minimalist footwear. Turns out, that this 4% stat might not be all its cracked up to be. And you could get 4% exercise improvement by natural means, not by buying a flash pair of trainers. Check out today's podcast with the awesome Dr. Ray Mclanahan. And check out CorrectToes too - that stuff is GOOD!