Blast those abs into shape with our current fave moves. Bust out these exercises while you’re watching TV or after a jog and you’ll be on your way to a serious six-pack. (And remember: go through each of the sets twice.) For even quicker results? Up your cardio, girl.
 
Vertical Leg Crunch
Lie on the floor and extend your legs straight up with your knees crossed. With your hands on your head, contract your abs, lifting your shoulder blades off the ground. Lower back to start. Be careful not to jerk your neck. Do 10-15 reps.

Plank

Bicycle
Lie on the floor on your back. With your hands behind your head, bring your right knee towards your chest, while turning your body and bringing your left elbow towards your right knee. Switch sides, bringing your right elbow to your left knee. Continue to alternate, moving your legs in a “peddling” motion for 10-15 reps.

Six-Inches
Lie on the floor with your feet together and hands on your side. Lift your feet off of the floor holding them about six inches off the ground. Try to hold for 30 seconds (it’s gonna be tough!). Repeat three times.