A stroke survivor is learning to walk again with the help of a revolutionary robotic leg which predicts her movements. Brave Sue Sandars, 51, almost entirely lost the use of her left arm and leg following a blood clot in her brain. But thanks to the mind-boggling contraption - and hours of hard work - determined Sue is striding towards her dream of ditching her wheelchair for good. One of just two of its kind in the UK, the thigh-high device is controlled by a super-sensitive insole in her trainer which decodes her intended manoeuvre through tiny initial movements. The £30,000 gadget then instantly moves - as if reading her mind - doing some of the work needed to help the wearer walk or stand up.