7 Exercises for Fit Feet. The muscle groups of your two feet make up 25 percent of the body's muscles. Foot strength directly influences proper foot mechanics, gait patterns, ankle stabilization, and whole-body balance.
Running On Air: Breathing Technique | Runner's World. i'm a distance runner and this technique is actually great. the first day i tried it i was able to run almost twice the distance i run everyday. =D