Andrea Metcalf's 20-Minute Rock Star Body Workout

This 20-minute body-blasting routine will earn you a total rock star body.

By Andrea Metcalf
Expert Content | June 17, 2010

Andrea Metcalf demonstrates the plank three-count combo.

Plank Three-Count Combo—Step 3

On count 2, kick your leg straight. On count 3, cross over the other. Now switch legs and perform 20 alternating combos.