Twisting Teasers News Today

>> reporter: no crunches for that perfect six pack. >> she looks so good. >> reporter: instead she uses pilates and ballet moves to strengthen her core. modified planks for balance and agility. >> it is harder than it looks. i swear. twisting teasers for challenging the entire core. >> it works the front muscles. so its a good one. >> and ballet swan arms for her perfectly toned back and shoulders. a total body workout that will get anyone zombie slayer ready. abbie boudreau, abc news, west holl...