Begin by kneeling upright on the floor facing a wall.
Place your feet under a support for stability.
Keep your hips in line with your knees, maintain a neutral spine and engage your deep abdominal muscles throughout this exercise.
Slowly lean your upper body towards the wall by opening up the angle at your knees.
At the end of the movement, place your hands on the wall to push yourself back up to the start position.
Repeat.
You can increase the difficulty of this exercise by starting further away from the wall.