Sports Acrobatics offers many advantages when included in a gymnastic environment. Gym owners will discover that they will be able to provide a competitive atmosphere for those gymnasts who excel in dance and tumbling skills, but don't choose to master the balance beam or pommel horse. Sports acrobatics seems to have no age limits, and it is not unusual to find international elite level bases who are in their late twenties. In addition, there are no weight, height, or body build limitations. Mature gymnasts can utilize their size and strength as base partners, while the smaller gymnasts are needed for the top or "flyer" position.
Text taken from www.usa-gymnastics.org