Begin sitting and slide a mini resistance band around your legs, just above your knees.
Lie on one side with one leg stacked on top of the other and your feet touching. Bend your knees at a 45-degree angle.
Rest your head on your lower arm.
Brace your abs by drawing your belly button in toward your spine.
Keeping your feet touching, raise the knee of your top leg as high as you can. Be sure not to shift your hips or pelvis. Your lower leg should remain in contact with the floor.
Hold for a one second, then lower your upper leg back down.