How 'robot legs' for stroke patients work

Scientists in the Netherlands are using robotic legs to try to improve the movement of stroke patients.

The prototype device is called the Lower-extremity Powered ExoSkeleton or LOPES and works by training the body and mind of patients to recover a more natural step.

It is hoped a commercial version could be made available to rehabilitation centres around the world as early as next year.

Here, Dr Edwin van Asseldonk, who is working on the project, explains what LOPES can do.