Hi Hajni and Jenna, Thanks for stopping by my diary.
To do a reverse crunch: Reverse curl
Lie on back with knees bent, feet on ground and arms at sides, palms down. Place a full water bottle behind knees, drawing feet toward butt to hold bottle in place. Keeping head and upper body glued to ground, bring knees in toward chest, raising hips a few inches off ground (as shown). Lower and repeat. Do 15 reps.
This majorly works the lower abs while your trying to keep the water bottle behind your knees and your upper body on the ground but relaxed too.
I had major burning in my abs by the time I finished doing all of them. I found a 5 min ab workout on youtube.com yesterday that showed me how to do this exercise so i tried it out.
Hope your both having a great day.