Performing the: A Step-by-Step Tutorial Weighted Stability Ball Crunch
Slowly roll down the ball until your lower back is fully supported, keeping your knees bent at a 90-degree angle and your feet flat on the ground.
With the weight close to your chest, contract your abs and curl your torso up towards your knees, lifting your shoulders and upper back off the ball.
Hold the crunch position for a moment, ensuring your abs are fully contracted.
Slowly lower yourself back down to the starting position, maintaining control and not allowing the ball to roll. Repeat the exercise for the desired number of repetitions.