Instructions for performing exercise correctly
1. Stand on a step with both feet. Slide one foot backwards with the ball of the big toe on the edge of the step.
2. Slowly apply your weight to the foot hanging off the dege.
3. Slightly bend the front leg and hold stretch.
4. Slowly rotate the shoulders to the left and right.
5. Repeat the exercise for opposite leg.
David has spent the last 16 years investigating the causes and rational behind children suffering with digestive dissorders