Seated Bicycle Crunch

Bicycle crunches are my go-to ab exercise because I love how the move works my upper and lower abs, and obliques all at once. If you're looking for a variation to the basic bicycle crunch, you can try it with an exercise ball, or give this seated version a try.

Begin sitting on the floor. Lift both legs up, and point your knees up to the ceiling. Sit back a little so your torso isn't straight up and down.

Then extend your right leg out as you cross your right elbow to your left knee. To make it more challenging, touch the outside of your elbow to the outside of your knee.

Then switch to the other side, extending your right leg and crossing your left elbow to your right knee. Move with control for a total of 30 times on each side.

Make this move more challenging by lowering your torso even further, and repeating for another set of 30 on each side. Just make sure to keep your deep abs pulling to your spine the entire time.