Come into an all fours position on an exercise mat with your hands directly under shoulders and your knees directly under hips. To start mobilising the left hip joint, take the left foot and cross it over the right foot. This is your start position. Proceed to drive your left hip back and across, loading all of your weight into the left hip. Drive your hip back and across as far as you can and feel the tension build up. Hold that end range position then gently move the hip back to the start position. Repeat 2-3 times on the same side before changing to the other.