Is "Stretch your arms down out at an angle of 45 degrees" right and natural? How can I express that in another way with using other words? The picture of the following link is the posture that I want to explain. (Sorry that I can't find better one)<br/><br/><a href='http://www.fotosearch.com/LIF124/3d404006' target='_blank' rel='nofollow'>http://www.fotosearch.com/LIF124/3d404006</a>/