6 Ways to Tone Your Derriére With Dumbbells

Adding a dumbbell to traditional donkey kicks pushes this exercise into overdrive. Just don't hyperextend your low back as you work your glutes.

• Start on all fours, and place a weight in the crease of your right knee.
• Keeping your right knee bent at a 90-degree angle, lift your right leg up until you feel your right glute engage. Flex your foot, and slowly pulse the foot toward the ceiling by squeezing your glute. Do not move the torso at all — the motion is just in the hip joint.
• Pulse 20 times, and switch legs to complete a set. Do three full sets.