What is the name (if it even has a name) of the style of dancing where one waves his/her arms side-to-side at waist level to the beat of the music? It was a very popular dance style in the 80's and early 90's.

You can see a sample of this dancing at 01:03 in the following YouTube video. Copy and paste "youtube.com / watch?v=Hby-JZqK6I4" into your browser (removing the two spaces around the "/") and watch the female dancer at the moment given.