If you listen closely to trainer Tony Little's frantic sales pitch for the Ab Lounge - which is a workout in itself - you'll hear a mouthful of waist-trimming and ab-toning claims. But does this movable chair live up to Tony's word? Can it really strengthen every muscle between your shoulders and hips without straining your neck and back? Here's how the ab lounge works. After a short warm up to get your heart rate going, you center your hips on the chair with your feet on the footrest and your hands grabbing the pull-up straps. Proper setup is important because incorrect form and poor range of motion can lead to lower-back and neck problems. Once you're all set, it's time for the good stuff. According to Little, all it takes to sculpt your abs are 15 repetitions of basic Jackknife, Oblique Jackknife, Jackknife with Leg Lift and other muscle-specific abdominal exercises that won't stress your neck as the Ab Lounge curves with your body's movements. If your neck hurts after a core workout, it's probably because you're doing exercises that involve a small range of motion between your middle and lower spine. The Ab Lounge clams to help prevent neck pain by extending that range of motion and shifting all of the emphasis and pressure off of your neck. And just think, you get all of that for only one-hundred dollars, plus shipping and handling. If you have neck and back problems, the Ab Lounge may be appealing, but you can get the same results for less money by going with sit ups, since they put less pressure on the neck, instead of crunches, and focusing on your form. That means making sure that your elbows stay pulled back and in line with your body, back straight and feet remain on the floor the entire time. And remember, sitting on the Ab Lounge alone won't give you those abs, you need to step up the cardio training and watch your diet, too. To learn more about popular fitness products that may, or may not, be worth your money, watch other videos in this series.