Boot camp buffs and ladies who love a traditional gym routine will love the elbow plank that gives an all-ab workout:
- Start on the floor resting on your forearms and knees.
- Step your feet out one at a time, coming into a plank position.
- Contract your abs to prevent your booty from sticking up or sinking. Your spine should be parallel to the floor, with your abs pulling toward the ceiling.
- Hold 30 seconds and work your way up to one minute, as you get stronger.