Sit upright on a stable chair or wheelchair with your back supported with a table in front of you at elbow height
Your assistant can help you to place your forearm and hand onto the table, thumb uppermost.
Your assistant should support your forearm on the table.
Ensure your wrist is as straight as possible.
The assistant can then place their hand over the back of your hand, thumb-to-thumb and finger-to-finger.
The assistant should firmly support your hand whilst gently drawing your forearm away from the wrist in a small movement.
The wrist can then be slowly bent forward with the fingers curling down into a fist as far as is comfortable.
Ensure the wrist does not twist.
Do not force the wrist.