Combine cardio with core work to reap the flat-belly benefits of both types of sweat sessions in this Better-Body Challenge. This workout alternates between jumping rope and standing ab exercise, so you can tone your belly while burning serious calories in just 20 minutes. We use one eight-pound dumbbell in this workout to increase the toning potential of each exercise. No weights? No problem. This workout will still be effective without them.
Great for toning the waist and stretching the sides of the body. •Stand with your feet hip-width apart holding five- to 10-pound dumbbells at your sides. •Bend sideways to the right, squeezing your waist on the right side. Keep your neck as neutral as possible, looking forward not down. •Pull the left ribs down to return to standing upright. This focuses the work on the left obliques. •Repeat for a total of 12 bends to the right, then switch sides. Do three sets.