Tones: obliques (side muscles of your abs)
Stand with your feet about shoulder-width apart, holding a dumbbell in each hand, with your palms facing your body. Lean your torso to the right as far as you can, while lowering the dumbbell along your right thigh, stopping when the weight is just above your knee (pictured). Don't bend or strain your neck sideways―keep your head and neck in line with the trunk of your body. Slowly lift your body and the dumbbell back to the starting position, then repeat the move on your left side to complete one set.
Don't tilt forward or back―lean directly to the side.
Tones: lower abs
Lie on your back with your legs bent, feet off the floor. Curl your knees toward your chest, and raise your butt in the air as high as you can while keeping your upper back on the floor (pictured). Slowly bring your legs and butt back down. Try to stop when your butt is still slightly off the floor before lifting again― this boosts the toning effects. If this feels too hard, place your butt on the floor for a brief rest between moves, and try it without resting as you get stronger.
The movement should be slow and controlled. If you lift or lower your butt abruptly, you could strain your lower back.
Suck in your breath. Try to make your ribs show, and hold for 30 seconds. Do this 2 to 3 times, every other day.