Scott Wall is one of the first people in Britain to be fitted with a bionic foot after he had part of his left leg amputated.

The Proprio Foot, designed by Icelandic company Ossur, is the first to use sensors to detect surfaces and slopes, which activates a motor to adjust itself to cope with a changing environment. Its software recognizes such things as hills and stairs and then adjusts the angle of the “ankle” and replaces some muscle power lost during amputation.