Power: Energy is a wonderful thing and one of the most important things in dances like the Quick Step or the Jive however, if over-done it just becomes wild movements. Judges, like dancers each have different styles and different ideas of the importance of various criteria. One judge may put a greater value on technique while another thinks musicality and expression are more important. The fascinating rhythms and mesmerizing body movements of this dance make it one of the more popular ballroom dances. The Rumba was influenced by the Spanish and Africans with most of the development of the dance taking place in Cuba. The Rumba evolved in 19th century Havana, originating with the African Negro slaves who had been imported. The group holds classes to teach dance to disabled people using a format very similar to that used to teach non-disabled people. The classes are open to people who just want to learn to dance and those who want to dance competitively. When it comes to the competitive dances there are two groups, Combi (one partner is in a wheelchair the other is not) or Duo (both parties are in wheelchairs). In contrast, international dresses are known for heavier fabrics and feathers. Several American styles also are adorned with feathers, but are not the essential accent of the ballroom dress. Most international ballroom gowns are designed for appearance from one angle - either they look appealing from the front or back, but not usually both. The maximum height for ladies' shoes is three inch heels, whereas men's shoes are around one and a half inches. Like choosing a dress, shoes for ballroom dancing should not be based on appearance alone. Again, you will have to jump, twirl, and kick in these shoes, so you need them to be comfortable and supportive of your feet. For other movies the ballroom dancing is the basis of the story as in Shall We Dance, a Richard Gere, Jennifer Lopez film about a family man who signs up for ballroom dance lessons in the hope of meeting the beautiful woman he has seen through the window of the dance studio on his commute home each night.