The 15-minute workout you should be doing

Fast swimmers

It’s on to your front to finish, and we’re going to work the calves, hamstrings, bum, lower back and shoulders all in one simple, fun move. Shoot both arms out in front of you so that they’re fully extended. Engage your core so that you’re supporting your lower back before raising the right arm at the same time as lowering your left. Apply the same principle to your legs so there’s lots of movement going on. You want to perform a swimmer’s action so that you create tension right across your back, ensuring neither your feet nor your hands touch the floor.

Do: 30-60 secs

Repeat this circuit 2-3 times.