This week's fitness challenge is an advanced-level, high-volume workout. It features creative ways of implementing a pyramid warmup and cooldown with one-minute weight and PT circuits, and a final fun ...

Welcome to our video series on running circuits. A running circuit workout combines short bursts of running (300-700m) with other exercises. These challenging drills prepare you for the rigors of ...

Join me for "The Five," a count-up circuit training workout suitable for all levels: Beginner (Tier 1), Intermediate (Tier 2) ...