Lie on your back with your arms out to your sides so your upper body forms a T-shape and your legs are directly above you in the air. Make circles with your legs by lowering them towards the floor (don’t take them all the way to the floor; bring them back up when they’re halfway down). Repeat. Do 8 in a clockwise direction, then reverse.
Repeat. Mountain climber
Assume a push-up position on hands and toes, with arms straight and body forming a straight line from head to heels. Bring your right knee towards your chest before returning to the starting position and repeating with left leg. Alternate ‘running’ your knees into your chest like this for one minute.
Use your core as a corset
Practise the no-crunch crunch. From a standing position, place your fingers on your hip bones and trace them inward. Then pull your tummy button back towards your spine. Don’t hold your breath or hunch your shoulders – just pull in that lower part of your tum. Hold this pulling-in for 10 seconds, relax and repeat. Do 5-10 at a time throughout the day.