Difficulty: Advanced
Description:
Start flat on your back with your knees bent and feet on the floor. Bring one knee to your chest, and place your hands around the knee to pull it closer to your body
Lift your hips in the air with one foot still on the ground, squeezing your glutes at the top. Return to the ground, and repeat all 10 reps on one side before switching sides.
Modification: use a strap or band to bring your knee to your chest if you can not reach your knee or your belly is in the way.