Work your obliques with this lateral crunch — it should make you think of a penguin moving along in a flightless shuffle.
- Lie on you back with knees bent and hands at your sides. Lift your upper back and shoulder blades off the floor.
- Bend to the left bringing your left hand to touch your left heel, then switch sides bringing your right hand to your right heel.
- Continue switching sides for 30 seconds.
Image Source: POPSUGAR Photography / Kyle Hartman