Instructions for performing exercise correctly
1. Make a fist with yur thumpb pointing upwards. Rotate your arm so thumb points downwards, keeping fist clenched.
2. Place your fist on a ledge or edge of shelf..
3. Slowly turn your body away from the ledge, you should begin to feel the stretch in your bicep.
David has spent the last 16 years investigating the causes and rational behind children suffering with digestive dissorders