This sport was first found in China where Chinese men and women would stand on top of people completing tricks with a different difficulty. When these tricks were completed they would get a score that would determine what place they earned.
    If you now go to a Sports Acrobatics competition you will see all different types of tricks varying from levels four to elite. The lowest level is level four where most of the tricks to not involve stnading on each other. This level includes many sycronized stands and positions.
    In the level elite you will see all variations of tricks. Some of these tricks include people flying throughout the air and some other tricks include standing. When you are trying a new trick for the first time you must have a coach standing by so if you do not get it right away then you will have some help so nothing bad happens.
    When you have a man and a woman competing together then you have a mixed pair and the tricks are a little more difficult than  womens pair. The tricks may have more flipping or more flying.
     When you have two men doing a routine together, then the tricks are a lot more difficult. The girls pair elite would probaly never try the tricks of a mens pair elite.
    In this area of sports there are means and womens pairs and also pairs and trios. There is alos a mens four but not a girls four.