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 hold a weight plate or dumbbell against your chest or behind your head. 3. Engage your core and exhale as you sit up, lifting your torso toward your knees. 4. Pause briefly at the top, then slowly lower back down with control to the starting position.
Log your weighted decline sit up sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.