To get washboard abs, you’ll need to regularly train your rectus abdominis muscle. ... Lie on a mat or another soft surface with your hands behind your head and your knees bent 90 degrees, ...

“Knees are soft, abs are in.” She then extended her arms out. The mum-of-three said: “Then as you get into it, you're going to take a straight arm right here, about 10, nice and easy.

That's all great, but if you don't actually know how to do an overhead press, you'll not only have soft abs but you could also wind up with a torn rotator cuff or a bruised head if you're not careful.