Sport aerobics, or aerobic gymnastics, is the ability to perform continuously complex and high-intensity movement patterns to music—which originates 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.
Nature of the game 
The performance area is 7m × 7m. Performers fit into divisions: Junior Divisions, made up of Primary and Secondary teams; Novice Divisions including Individual Men and Women; Intermediate Divisions comprising Individual Men and Women, Mixed Pairs and Trios; and Elite Divisions including Individual Men and Women, Mixed Pairs and Trios. A three-person team may be made of any combination of men and women in a trio. Step teams and general divisions also exist.
The performances are made up of the following elements: dynamic strength, static strength, jumps and leaps (power), kicks (dynamic strength), balance and flexibility. The routine must be performed entirely to music. Three exercises are mandatory: four consecutive high leg kicks, four consecutive push-ups, and a phase beginning with four jumping jacks and comprising 32 counts of standing movements and patterns. Additionally, a maximum of ten elements from following families are allowed: push-ups, supports and balances, kicks and splits, jumps and leaps. Some movements in other gymnastic sports (sport acrobatics, artistic gymnastics, rhythmic gymnastics, etc.) are prohibited, such as handsprings, handstands, acrobatic flips, and aerial somersaults.
In the competition, women are required to wear a one-piece leotard, tights, white socks and runners, and their hair in a tight bun. While men must wear a unitard or body shorts and form fitting (lycra) shirts. Sometimes, men wear tights to prevent cold or for artistic purpose. Those clothes are often intricately designed with bright color.
Scoring of the performances is according to: artistic quality, creativity, execution, and difficulty. Artistic quality is the composition of the routine. Creativity is the variety of movements, lifts in pairs, trios and groups. Execution is the perfection of each movement. Difficulty is the number of required gymnastic elements demonstrating strength, flexibility, power and local muscular endurance.
Competitive aerobic gymnastics 
FIG aerobics 
The competitive aerobic gymnastics are governed by the Fédération Internationale de Gymnastique, or FIG. The FIG designs the Code of Points and regulates all aspects of international elite competition. Within individual countries, gymnastics is regulated by national federations. In 1995, the FIG recognised sports aerobic as a new competitive gymnastics discipline and organised judges and coaches courses and the 1st Aerobic Gymnastics World Championships in Paris (34 countries). In 1997, the IWGA (International World Games Association) included Aerobic Gymnastics in its programme of the 5th World Games (Lahti, Finland). Since 1999 The European Union of Gymnastics has been conducting Aerobic European Gymnastics Championships in all uneven years. Leading nations who have provided World Medallists are: Australia, Brazil, Bulgaria, Chile, China, Finland, France, Hungary, Italy, Japan, Korea, New Zealand, Romania, Russia, Spain and Great Britain.
FISAF aerobics 
The Federation of International Sports, Aerobics and Fitness (FISAF) is an international non-profit "umbrella organization" active in over 40 countries. It is self-described as "the largest fitness industry organisation in the world" and "the largest instructor certification agency in the world".
Besides offering training and accreditation, the Federation of International Sports, Aerobics and Fitness hosts a variety of national-and international-level sports aerobics competitions leading up to an annual World Championship.
|Wikimedia Commons has media related to: Aerobic gymnastics|
- The Association of National Aerobics Championships (ANAC)
- Federation of International sport aerobics & Fitness Inc. (FISAF)
- Video of Roberson Magalhaes, World Champion 2002