Is hitting the ground heel-first like running with brakes on?
from Olivia W’s Blog Rss http://www.stuff.co.nz/life-style/well-good/teach-me/87003266/Ideal-running-style-Should-your-foot-hit-the-ground-heel-or-toes-first
from
http://oliviawhinham79.tumblr.com/post/153815183776
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