1. Start in a plank position with your head and neck neutral and your hands stacked under your shoulders. Make sure that your lower back isn’t sagging.Keeping your core tight, lift your right hand and right foot off the ground, and “step” a foot to the right. This is one rep.Pause for a second, reset, and move another foot to the right. Complete 10 “steps” to the right, then switch sides, and make your way back to the starting point, stepping with your left hand and left foot.Repeat three sets.