Decline crunches Begin by laying back on a decline bench with a weight plate crossed between your arms over your chest and placing your feet securely in the foot rests. Then slowly curl your body up, making sure to squeeze in through your abdominals and hold for a few seconds at the top. Return back to the starting position and repeat for as many reps and sets as desired. | Iron-Core Fit

12 Best Ab Exercises and Workouts for Strength | BarBend

5 Best Bench Abs Exercises (Workout Options & Techniques)

A full-body workout using just a bench

Decline Bench Alternating Leg Raise

Decline Bench Leg Raise

Decline Bench Knee Raise