A seven-year-old Argentine boy has defied doctors' predictions that he would never walk, with help from a homemade rehabilitation device built by his father.

The first version of the machine designed for Ivo Cardile, who has been severely brain damaged from birth, was built in just a month out of a bicycle and wooden planks.

His father Jorge has now built four machines and is using them to try to help other disabled children.

Liliet Heredero reports.