Exercises from the community
Row Machine
Crunches: Knees Up (abs)
Crunches: Knees Up keeps the legs elevated and hips flexed, which holds tension on the upper abs through the entire rep instead of letting it ease off between reps. Lie on your back with your knees bent and lifted so your shins are roughly parallel to the floor. Curl your shoulders and upper back off the floor toward your knees, then lower back down slowly without letting your feet drop.
Reaching Medicine Ball Sit-ups
Reaching Medicine Ball Sit-ups use the weight of the ball to improve visible upper ab definition, adding resistance right where a standard sit-up is weakest. Lie on your back with knees bent, holding a medicine ball at your chest. Perform a full sit-up, reaching the ball forward and up as you reach the top position, then lower back down with control to the starting position.