Lie on your back with your arms stretched out wide, palms pressing into the floor, and raise both legs together toward the ceiling. Keeping the legs glued to each other, lower them over to one side in a controlled arc, stopping just above the floor, then sweep them up and over to the other side - like wipers clearing a windshield in slow motion. Your shoulders are the anchors; they stay pinned to the floor no matter how far the legs travel.

Works: obliques, abs, hip flexors, lower back

Breathing: Exhale as the legs lower to each side, inhale as they sweep back up through center.

Common Mistakes: Letting the opposite shoulder peel off the floor as the legs drop, bending the knees to shorten the arc, and letting the legs fall with gravity instead of lowering them with muscle.

Make Easier: Bend the knees and shorten the arc with Half Wipers, or build up the raised-leg control with Leg Raises (Floor) first.

Make Harder: Slow each arc to a 3-count and take the legs lower before sweeping back, or pause for a 2-count at the bottom of every side.