We have some great news for her abs: The ultimate piece of belly-fat-busting tools is a $30 security ball. As soon as researchers in ~ California State University, Sacramento, hooked up electrodes to the midsections the 18 people, they found that ball moves recruited double the number of muscle fibers as classic crunches or yoga/Pilates-inspired workouts. Scientists credit the ball"s instability with doubling the toning power of this moves.

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To amp up results, we linked ball exercises from the examine with high-energy cardio and simple calorie-cutting tips. In 2 weeks, you can lose as much as an customs from her waist; in 4 weeks, melted up come 8 pounds or more.

The ExpertsRafael Escamilla, PhD, PT, study author and also professor the physical therapy at California State University, Sacramento, and also Wayne Westcott, PhD, research study director in ~ the southern Shore YMCA in Quincy, MA, designed these workouts.

Program in ~ a Glance

Your Workout
Week 1Week 2
Monday Cardio program 1 (45-60 minutes)Monday ship Workout (twice, 45-50 minutes)
Tuesday belly Workout (once, 25-30 minutes)Tuesday Cardio regime 1 (45-60 minutes)
Wednesday Cardio regime 2 (35-45 minutes)Wednesday belly Workout (twice, 45-50 minutes)
Thursday belly Workout (once, 25-30 minutes)Thursday Cardio regime 2 (35-45 minutes)
Friday Cardio program 1 (45-60 minutes)Friday belly Workout (45-50 minutes)
Saturday ship Workout (once, 25-30 minutes)Saturday Cardio routine 1 (45-60 minutes)
Sunday Cardio routine 2 (35-45 minutes)Sunday ship Workout (twice, 45-50 minutes)

Your eating PlanHow it works:Our Eat because that a Slim Bellyplan relies on an easy food swaps to cut about 500 calories from her diet daily. Our recommendations additionally boost your intake that monounsaturated fatty acids (MUFAs) and also whole grains—studies display both shrink belly fat faster.

MORE: 16 straightforward Ways come Eat Less

Belly workoutDo 12 come 15 reps that each relocate in the bespeak shownBetween each exercise, perform a cardio burst—2 minute of jumping rope, marching or jogging in place, stair climb or stepping, or doing jumping jacks. Psychic to heat up and also cool under by marching or stepping side to side in place for 3 come 5 minutes at the beginning and also end of her workout.

Cardio Burst: this 2-minute high-energy bouts will dual your calorie burn to rate up fat loss and also reveal a slimmer ship in less time.

How to Buy a BallMost civilization need a 22-inch (or 55 cm) stability ball. If you"re under 5-foot-1, pick an 18-inch (or 45 cm) one, or a 26-inch (or 65 cm) ball if 5-foot-8 or taller. They"re accessible in sporting goods stores (about $30) or online. We prefer the Gymnic plus (performbetter.com) due to the fact that it"s made with burst-resistant, latex-free vinyl, and if punctured, it will deflate slowly.

1. Turning back Crunch


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(Cardio burst: 2 minutes)Lie faceup through calves relaxing on ball, arms at sides. Push legs into ball, squeezing it between calves and thighs. Contract abs and also lift hips 3 to 6 inches off floor and pull knees towards chest. Hold for 1 second, then lower.

A. Do it simpler Contract abs and also just lift round off floor, maintaining hips down.

B. Make it harder keeping neck in line through spine, elevator head and also shoulders turn off floor together you progressive hips. Hold, then lower both top body and also hips.

MORE: 10 Moves the Target Cellulite

2. Rock and Roll


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(Cardio burst: 2 minutes)Start top top knees, through legs around hip-width apart. Ar fists on sphere in prior of you. Keeping body in line from head come knees and also abs tight, lean forward and also roll ~ above forearms. Organize for 1 second, then roll earlier to start.

A. Make it easier bend hips rather of keeping body in a directly line as you role onto forearms, or store body in line and roll just partway onto forearms.

B. Make it harder as soon as you"re balancing top top forearms, straighten legs and also press balls the feet right into floor to form a right line indigenous head to heels. Organize for 15 to 30 seconds and repeat.

3. Round Curl


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(Cardio burst: 2 minutes)Sit on ball, to walk feet forward, and roll torso down till bottom of butt is simply off ball and middle and also lower back are top top ball, feet together. Place hands behind head. Skinny back, pushing upper back into ball, climate exhale, contract abs, and also curl forward until upper earlier lifts off ball.

A. Do it easier Place feet more comprehensive than hip-width personal for much more stability, and also cross arms end chest.

B. Make it more difficult Straighten one foot so it"s parallel to floor and you"re balancing ~ above one foot. Do fifty percent the repetitions, climate switch foot to finish.

4. Skier


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(Cardio burst: 2 minutes)Lie over ball on every fours. Walk hand forward so ball rolls under thighs, foot together, abs tight, and body in line from head to toes. Bending knees and pull them and ball (it will certainly roll to shins) toward appropriate shoulder. Organize for 1 second, then roll earlier out and repeat to left side.

A. Make it simpler Hold begin position—body in heat from head to toes, abs contracted—for 15 come 30 seconds. Repeat one much more time.

B. Do it harder Start with round under shins and also let it role to tops of feet as you draw knees in.

5. Pike


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Start in the same place as the Skier, legs together, sphere under thighs, balancing ~ above hands, and also body in heat from head come toes. Keeping legs straight, contract abs and lift hips up towards ceiling, rolling round to shins. Host for 1 second, climate lower. (Cardio burst: 2 minutes)

A. Make it easier Lift hips just a few inches and also roll ball to about knees.

B. Make it more tough Start with round under shins and roll to top of feet and lift hips so torso is as vertical as possible, choose you"re act a handstand.

MORE: Tone her Inner Thighs with These 8 Moves

Cardio RoutinesThese calorie-melting workouts maximize fat loss, rise your energy, and improve her fitness level—fast! In one study, dieters who also walked 50 minutes 3 times a week lost virtually twice as much belly fat as women who only dieted. You can do any kind of cardio practice (walking, jogging, cycling, or using a cardio machine) v these workouts.

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Routine 1(burns 225 come 675 calories*)Warm up at basic pace for 3 minutes, then exercise at a moderate to brisk pace (breathing hard yet can still talk in sentences) because that 40 come 55 minutes, and also cool under at basic pace because that 2 minutes.Total time: 45 to 60 minutes

Routine 2(burns 175 to 500 calories*)Warm up for 3 minutes, then choose it as much as a moderate to fast intensity for 3 minutes, then press yourself to go as fast as you have the right to for 2 minute (can only speak a few words in ~ a time). Alternating brisk and also fast intervals 5 to 7 an ext times, climate cool under for 2 minutes.Total time: 35 to 45 minutes

*Based top top a 150-pound person doing activities such together walking (low end), cycling (mid), and also jogging (high end).