Our Changing World - Parkinson's and Metronomes

Musicians use metronomes to set the tempo and keep time in a piece of music, but physiotherapist Tara Martin has been using them to help prevent people with Parkinson's disease from falling over. Ruth Beran goes to the home of Parkinson's patient John Chitty who has being 'trained' to take big steps by walking in time to a metronome, and has had good results.