Want to looks sleek and slim for the summer, but feeling self-conscious about that paunch you earned during the Christmas holidays? No fret, just practice these helpful fitness moves and within 4 weeks, you'll be flaunting a toned, flat tummy for all to see!

Crunch. "The ab exercise that all other ab exercises are measured against is the simple crunch," says Weil. To perform the tried-and-true crunch, lie on your back, knees bent, feet on floor, hands supporting your neck, and slowly crunch up enough to get your shoulders off the floor. Want to make them tougher? Lift your feet in the air, knees at 90 degrees, and pull knees to chest as you crunch up.

The plank. There are a couple ways to perform the plank, an ab buster favored by Frediani, some tougher than others. For the American Council on Exercise's version, lay belly-down on the floor, resting your upper body on forearms that are flat against the floor. Without arching your back, slowly lift your torso from the ground. Hold the position for five seconds, then lower yourself back to your starting position.

Bicycle maneuver. To do the bicycle maneuver, start prone on the floor says Weil, lower back pressed to the ground, hands under your neck. Bring your knees up to about 45 degrees and slowly pedal. Touch your left elbow to your right knee, then your right elbow to your left knee. Keep your breathing relaxed.

Captain's chair. Sitting in a chair, press your back against the chair's back. Stabilize yourself by holding the chair's handrests, then slowly lift your knees toward your chest, then return them to the starting position, keeping "the motion controlled and deliberate" through the whole exercise, suggests Weil.

Back extensions. Back extensions can be done on the floor or with a Roman chair at the gym. To do the floor version, lie facedown on the floor, arms straight out in front of you, palm down, legs behind you. Slowly lift your right arm and left leg off the floor, hold them for several seconds an inch or two off the ground, then lower and repeat with the opposite arm and leg.

Crunches on an exercise ball. Sit on an exercise ball, feet flat on the floor. Let the ball roll back until you're lying on it, thighs and torso parallel to the floor. Cross your arms over your chest and tuck your chin. Contract your abdominals raising your torso to no more than 45 degrees. For better balance, spread your feet wider. Want to challenge the obliques (the muscles either side of your abs)? Weil recommends making the exercise less stable by moving your feet closer together. Exhale as you contract; inhale as you return to the starting position.

Vertical leg crunches. Lie on the floor, lower back pressed to the ground, hands behind your head. Extend your legs straight up, crossed at the ankles, slightly bent at the knee. Contract your abdominal muscles by lifting your torso toward your knees. "Make sure to keep your chin off your chest with each contraction," Weil says, and exhale as you contract upward, inhale as you return to the starting position.

Reverse crunches. Lie on the floor, lower back pressed to the ground. Put your hands beside your head or extend them out flat to your sides -- whatever feels most comfortable, suggests Weil. Crossing your feet at the ankles, lift your feet off the ground, knees bent, until your calves are parallel to the floor. Once in this position, press your lower back on the floor as you contract your abdominal muscles. Your hips will slightly rotate and your legs will reach toward the ceiling with each contraction. Exhale as you contract; inhale as you return to the starting position.

Take Note:
  • Forget about doing sit-ups from dawn to dusk and crazy weight loss plans because these are more likely to sabotage than to help you reach your fitness goals.
  • A better way to help burn calories while working on those fab abs is through cardiovascular exercise: Think swimming, biking, walking, or jogging, combined with a sensible diet.
  • As for calories, focus on burning more than you take in. Try starting each day by eating lots of produce, and by enjoying whole grains, lean meats, and low-fat dairy. These will leave you feeling full and less tempted to munch on empty calories.

via WebMD