Your hips and lower back should raise off the bench. Keep going until you feel your abs fully contract. Pull your knees into your chest and roll your hips up. Incline Reverse Crunch Exercise Incline Reverse Crunch – Staring Position With Knees Bent If necessary, attach ankle weights or hold a dumbbell between your feet for added resistance. With both hands, hold on to a secure structure behind your head. Your legs should be straight or you can bend your hips and knees to 90-degree angles for the start position of the incline reverse crunch. Your head is on higher position than your legs. Lie on your back on a slant board or decline situp bench, with your head where your feet normally go. Incline Reverse Crunch Technique – Proper Form The good thing is that progression could be possible by increasing the angle of the bench. As if you can probably guess, the incline reverse crunch is more difficult than the regular reverse crunch because you are working against gravity. The incline reverse crunch (reverse crunch on slant board hanging reverse crunch) provides the most amount of workload amongst all abdominal exercise that use only bodyweight. This exercise is good for the lower abs as well as the rectus femoris and the hip flexors (iliopsoas) and is appropriate for many sports as a general conditioning exercise. In this version of the abdominal crunch, you move your legs rather than your torso.