Boom! Boom! Boom!
No, this is not the sound of Snoqualmie avalanche control, it’s the sound your legs would make if they could talk (or scream!) during a run. Studies have found that the energy transmitted from impact during running can be up to 8X body weight! The only things between your body and the ground are your shoes and socks, and we tend to see a high percentage of runners who develop pains and injuries, so it maybe we should give those shoes a little thought.