A simple curl can go a long way.

Lie with your back on the floor your feet hip-width apart. With your arms either side of your head, cross your wrists with arms fully extended. Inhale, pulling your abs in under your ribcage. Lift your arms, head shoulders and ribcage in one single movement.

Smoothly return to the starting position and do 4 reps. Slowly build up to doing two sets of 8–16 reps.

Nicki's tips: This curl, although simple works the abs pretty hard so don't strain let your tummy muscles do the work.