According to them, the technology could be of great help to stroke sufferers across the world by encouraging them to move faster on the treadmill, which in turn will speed up their recovery.

"The virtual system encourages patients to walk more quickly and for longer, almost without them realising it. It is not just that they are distracted from the pain; by moving faster than they realise, their body actually feels it less. We're effectively fooling the brain and cheating the body.”

"It's a lot more fun than traditional rehab and it can actually facilitate a much faster recovery. Our test subjects are usually surprised when I tell them they've improved by up to 20 per cent," lead scientist Wendy Powell was quoted by The Independent as saying.

In fact, moving images on a giant screen respond to patients' efforts on an adapted treadmill. And using a variety of different settings, including urban and rural landscapes, the device creates a virtual world for the patient to ‘walk’ through on the treadmill.

This immersion also acts as a distraction, and early research has already shown patients using it have a decreased perception of pain, according to the researchers at Portsmouth University.