- Next generation limbs switch between different modes of activity
- Athletes with prosthetics surpassing achievements of able-bodied athletes
- Technology could transform existing sports
- First power-assisted Olympics take place in 2016
(CNN)Andy Lewis' dream died when he was 16. Just out of school, the Englishman had been accepted for an elite traineeship with the army when he was hit by a truck, which resulted in most of his left leg being amputated.