Here is a beautiful video by Sigur Ròs, just copy and paste the link and then download the hoppipòlla video. (sorry, i'm really incable of creating links or posting videos!) I thought it might have some good things to look for as far as movement in elderly people. and it's just fun and makes me smile every time i watch it:)

http://www.sigur-ros.co.uk/media/dldvideo.php

if this doesn't work, you can also find it on youtube.