Lie face down on a mat, with your legs straight and your arms outstretched in front of you. Raise both your arms and legs at the same time so that they are 10-15cm off the floor, forming a bowl shape with your body. Hold this position for a few seconds (imagine you’re flying at this stage, it will help the time pass), then lower back to the starting position. You should feel your lower back, glutes and hamstrings working in the hold position.