Quickstep is a fast version of the Foxtrot, 50-52 bars per minute. You'll find it in the International Standard division but not in the American. It is a fascinating medley of lightening quick steps, syncopation and a few Charleston steps.
The dance is difficult to master because of it's extreme speed and both partners have to be quick and light on their feet. When performed by accomplished dancers, you are watching rhythmic power and coordinated action.
When the dancers stop for their footwork, it is so fast that the feet appear to be barely touching the floor. The upper body posture maintains elegance throughout.
Quickstep music is usually jazz or swing with a brisk tempo. It is truly an amazing dance to watch but hell to perform. I used to come off the floor with sweat dripping all over my beautiful gown.
The video below is an example of a Quickstep performed at a competition.