Start in a high plank position on toes or knees, with wrists and shoulders stacked. Your body should be long and straight, with your glutes and core engaged. (Tip: If you have wrist pain, place your ...
Plus, it's a fun way to add in some variety when you get bored of the basic crunch or plank. So, are bicycle crunches effective? If you want a stronger core to improve your athletic performance or ...