Targets: Lower back, rectus and transversus abdominis, obliques, and butt
- Lie faceup on floor with back resting on folded towel, knees bent and feet flat on floor, arms by sides.
- Cross right ankle onto left thigh just above knee so bent right knee points out to side; flex left foot so only heel rests on floor.
- Rounding lower back and squeezing abs, lift hips off floor so pelvis tilts up toward ribs. Curl pelvis as far as you can without arching back; pull abs in to lift rather than press through left heel. Lower to floor.
- Do 10 reps, holding the lift for 10 seconds on the final one. Switch sides and repeat. Do 3 sets.