Bicycle Crunch - Phase 1

How about some ab workouts you can easily do at home anytime with no equipment ?! Phase 1 - This is the bicycle crunch, also known as criss cross in pilates. An ab workout specifically for the obliques, muscles along the sides of your abdomen used in twisting. 
How to: Lay on your back. With your hands behind your head and elbows out wide, bend one knee in towards your chest. Have the other leg out at a 45degree angle from the floor. Keep your chin off your chest and take a deep breath in, exhale slow and twist opposite elbow to knee. Repeat as many times as possible with proper form.