Bent Knee Crunch
As you can tell from the name and the video here, I’m adding a little something to the standard crunch this week. Start the exercise by lifting both feet about six inches off the ground. Then, take one leg and bend it so that both the hips and knees are close to a 90 degree angle. That’s your starting position. Reach your hands as far forward as you can, under control, then return to the starting position. Try your best to keep both feet still during the movement, but if you need to touch your straight leg down to the ground then you can.