As an acclaimed singer, Leona Lewis is used to testing out her vocal cords. But the X Factor winner faced a different challenge when put through her paces on a research lab’s motion capture treadmill. Imperial College’s Centre of Paediatric Blast Injury Studies is developing life-saving treatments for children with blast injuries. Exclusive pictures show the singer don a white lab coat on a visit to explore the advanced technology . From 3D printing prosthetic prototypes to specialist machinery