http://halinalarsson.com/what-....generation-has-the-b
What are a few their unpleasant? Well for one, NOT bending the knees enough; which leads to a lot of impact for a ankles and knees. And two, developing the practice of landing for a heel, as opposed to the forefoot. This, basically stops the runner's forward momentum, and 'puts the brakes on.' Also, it sends a 'shock' through the whole of the leg, starting with the heal, and sending it up through the knee. Not good, as well as major reason that runner's in padded, expensive shoes, claims McDougall, suffer more injuries than t