Straight Leg Crunch Exercise - World Sports

Southwest Times Record: Today’s Workout: Strengthen core with this single leg crunch CNBC: 10 core exercises to improve your back—and they're better for your body than crunches 10 core exercises to improve your back—and they're better for your body than crunches Exercises like push-ups, crunches, planks and Russian twists involve the hands, forearms, buttocks or the back touching the ground. But what if you don't want to sit or lie down or use your hands to ...