Defining your abs calls for targeted training, says trainer Angie Di Franco.

Targeted training for six-pack abs - PICTURE - Women's Health & Fitness

You need to target the rectus abdominis, transverse abdominis and obliques in turn. (Each time you complete an ab exercise, also throw in one for your lower back and obliques.)

To hit the whole region at once, go for planks with perfect form. Confused?

Option B is joining Guy Leech’s record attempt for the world’s largest core fitness circuit class on 14 March in Melbourne. If nothing else, you’ll leave with the recipe for a chick pack.

To register, visit aca2015.com.au

P.S. As a smaller muscle group, the core fatigues quickly. Give it time to recoup by blasting it two to three times a week at the end of a workout.

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