The Dynamic Pattern Theory of motor learning suggests that the brain is more efficient at memorizing movement patterns than it is at remembering muscular isolations.
Even doing the simplest of isolations can inspire new choreography and ideas.
In fact, until the second repeat of the chorus If you like it then you shoulda put a ring on it almost all of the movement vocabulary is reminiscent of the isolations, footwork and costumes of jazz dance.
Other moves range from very simple ones like the Quick Step (basically stepping forward twice with each foot, then once, then doing a 90 degree turn to the left) to the more complex moves like Arm Isolations and Chest Pops.