The definition of Sport Aerobics, officially called Aerobic Gymnastics, is the ability to perform continuously complex and high intensity movement patterns to music- which originate from traditional aerobics - with a high degree of perfectly executed elements of difficulty. The routine must demonstrate creativity with the perfect integration of all movement, music and expression. It combines the elements of aerobics, sports acrobatics, rhythmic gymnastics along with music, dance and choreography. Here is a good movie introducing sport aerobics.
Nellie Vladimirovna Kim (born 29 July 1957) is a retired Soviet gymnast who won three gold medals and a silver medal at the 1976 Summer Olympics in Montreal, and two gold medals at the 1980 Summer Olympics. She was the first woman in Olympic history to earn a perfect 10 score on the vault and the first to earn it on the floor exercise, rivaling Nadia Comaneci, Ludmilla Tourischeva, and other strong competitors of the 1970s. Kim worked for a long time as a coach, training several national teams, and judged many major international competitions. As President of the Women's Artistic Gymnastics Technical Committee, she coordinates the introduction of new rules in women's gymnastics, as provided by the new Code of Points, developed by the FIG in 2004–2005 and in effect since 2006.