These are 9 steps in a classical surya namaskar. Besides toning the body, there are many other benefits of Surya Namaskar including improving blood circulation to the different organs, aiding digestion, body detox, regulating blood sugar levels and many others....
These breath practices help to oxygenate the lungs and blood. I'm still trying to figure out technicalities and have inadvertently deleted the last minute of the video. Please excuse the abrupt end, although the practice is complete.