The rider in this video has only one arm and rides bareback. It starts off with still photos then goes to video. Its quite old and I believe was taken at a veterinary college where the horse's speed was clocked. They make a number of passes on the road and each pass keeps getting faster until the horse's tail is literally straight out behind him and the rider looks like he's feeling heavy G's. Great Johnny Cash Music too!

http://www.blueridgesinglefooters.co...rowdymovie.mpg