Why: This drill develops lateral strength and agility necessary to stabilize the body and maintain single-leg balance during forward running motion. Specifically, this drill works the glutes, hip flexors, tensors, abductors and psoas muscles in ways that are otherwise neglected in forward running.
How: With an upright torso and level head, move laterally in one direction by alternately bounding with your legs spread and your legs together. You’ll probably need to swing your arms overhead in an opposite pattern to maintain balance. Do two to four 50-meter reps to the left and right, facing the same direction for each lateral movement.