The 5-Minute Ultimate Core Workout
Lower body: Flying bridge
Sit with knees bent, feet on floor, hands on floor by hips, fingertips
forward. Push up into reverse tabletop with knees over ankles, hands
under shoulders. Lower hips, pushing them back between arms until
legs straighten and weight is evenly divided between hands and feet.
Bend knees; push hips back up to previous position.
Make it easier: Lower butt to mat before pushing back up to reverse tabletop. Continue for 20 to 30 seconds.
Next: Lower body: Butt kicker