The Unescapable Fatigue Effect

timclarkAt the Races, Research

In an earlier article, I discussed the mechanics of how fatigue impacts pace during a marathon, but what happens to other metrics like ground contact time, flight ratio and impact characteristics?  We know these metrics are predictably affected by running speed in an unfatigued state.  As running speed increases, impact Gs, pronation, pronation velocity and flight time usually increase.  Contact time … Read More

Achieving Pace Consistency in Endurance Running

timclarkAt the Races, Research

Pace consistency is at the heart of a runner’s training and is important for endurance races like the marathon. Coaches help athletes find their rhythm early as to not burn energy. Achieving pace consistency seems simple, but mechanically our bodies make constant and subtle adjustments.  We know pace is a simple equation: Pace = Stride Length x Stride Rate. But … Read More