Decline situps are typically done on a bench or stability ball, and work more muscles than a traditional situp. We’ll explain how to do this exercise and more.

Sit up and press for even stronger abs. By Brett Williams, NASM and Ebenezer Samuel, C.S.C.S. Published: Sep 03, 2019 11:46 AM EDT Our product picks are editor-tested, expert-approved.

Focus on sit-up varieties that require engagement of the full body, including the legs—decline bench crunches, straight-legged crunches, crunches using dumbbells, bicycle crunches, and the like.