What's a good ab workout for a runner and when should I do it?

Question

I'm a sophomore girl who runs the 4x800 and the 800m or 3200m. I want a good ab workout. I am in shape, so don't be shy to share a hard one with me.

How often a week should I do it? Every day?

Answer 1

I'm a swimmer.I've recently learned that doing butterfly[a swim stroke]helps develops abbs quickly.

it also develops other muscles.

you should probabaly swim atleast 3 times a week.

and if you dont like swimming.you can always do crunches.:]