Mastering Swiss Ball Crunch: Guide, Form, Flaws, Set Up & Execution

Exercise Instructions:

• Lie back on a Swiss ball with knees bent at a 90-degree angle and feet on the floor about shoulder-width apart.
• Interlace your fingers behind your head. The ball should be under your hips and lower back.
• Crunch your torso toward your knees, raising your chest upward.
• Stop when the middle of your back loses contact with the ball.
• Pause, then return to starting position.