This barre-inspired move gives your booty a surprisingly tough workout:
- Start on all fours with knees placed directly under the hips and elbows below the shoulders; legs should be touching. Round the back up toward the ceiling and pull abs away from the floor.
- From there, lift one leg from the ground, keeping it at a 90-degree angle, and point toes up at the ceiling. Make tiny pulses upward for 15-20 repetitions.
- For more of a challenge, flex the lifted foot, and pulse up with the energy in your heel for 15-20 more reps.