Running Barefoot — The Importance of Core

Usain Bolt’s coach, Glen Mills, talked in an interview about what helped make Usain Bolt the fastest man in the world. He revealed something that will surprise most runners, namely, the most important muscles required for fast, efficient running. Have a guess? Think it’s the quads? The hamstrings? Glutes? Calves? Eyelids? Let me quote Glen: […]