http://www.novelconception.com..../what-tech-skills-ar
What are some of their annoying? Well for one, NOT bending the knees enough; which results in a lot of impact at the ankles and knees. And two, developing the practice of landing on the heel, rather than forefoot. This, basically stops the runner's forward momentum, and 'puts the brakes on.' Also, it sends a 'shock' through an entire leg, starting from the heal, and sending it up through the knee. Not good, which includes major reason that runner's in padded, expensive shoes, claims McDougall, suffer more in