Do This 4-Minute No-Equipment Workout to Flatten Abs and Shape Your Booty

Slow down for the end of your mini workout with this knee-friendly curtsy lunge. You'll work those glutes while sculpting the hips.

• Start from standing, and step your left leg behind you and to the right so your thighs cross, bending both knees as if you were curtsying. Make sure your front knee is aligned with your front ankle.
• Return to standing and switch sides to complete one rep.
• Continue, alternating sides, for 60 seconds.