Medicine Ball Crunch

Lie on your back with knees bent and feet flat on the floor while holding a medicine ball at chest level or overhead. Engage your core by pressing your lower back into the ground. Curl your shoulders and upper back off the floor toward your hips by contracting your abdominal muscles, then slowly lower back down with control. Keep the movement focused in your mid‑section and avoid pulling with your neck or arms.

Track This Exercise in the App

Log your medicine ball crunch sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.