Lie on the floor on your back. Lift your legs into the air and bend your knees at a 90-degree angle. Let your child sit on your feet facing you. Their tummy will almost be parallel to the floor and their legs should dangle down. They are basically straddling your lower legs. Now begin your crunches. "You can add in kisses, funny growls, or tickle their ribs at the top of motion on each crunch," Chadwell added.
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