For your viewing pleasure, I give you GRETA CLAPPING:

http://www.youtube.com/watch?v=dsvulr0cSWw

(Sorry my voice is so loud in the video....I was right next to the phone speaker.)

Please note in the video, how there is NO ELBOW BENDING while clapping.  VERY precise.  VERY agile.  Much like a ninja, with awesome dance moves.