1 - Lie on your back with your knees bent and your feet flat on the ground, hip-width apart. Place a resistance band just above your knees if you want extra resistance.
2 - Engage your core muscles, and press your feet into the ground to lift your hips up towards the ceiling.
3 - As you lift your hips, squeeze your glutes and hamstrings and hold the position for a few seconds.
4 - Slowly lower your hips back down to the starting position, and repeat for the desired number of reps.
