1. Set up on a decline bench with your feet secured at the top. 2. Lie back with your head lower than your hips and engage your core. 3. Hold a weight plate or dumbbell against your chest or behind your head. 4. Exhale as you crunch upward, lifting your shoulders toward your hips. 5. Slowly lower back down with control to the starting position.
Log your weighted decline crunch sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.