This pulsing move tones and strengthens your abs.
Frog Reach Through: Lie down on your back, lift your legs off the floor, and press the soles of your feet together. Press your palms together, straighten your arms, and reach through your legs. Your shoulder blades should lift off the floor. Pulse forward as you reach, exhaling each time. Do 20 pulses. Your upper body should hover off the floor the whole time as you use your ab muscles to pulse forward. For the second circuit of this exercise, hold a light dumbbell and pulse forward 20 times. Take a short breather and then do 20 more pulses with 2 dumbbells for your third and final set of the frog reach-through. This move works your abs.