Acrobat comes from the Greek word Akros, meaning high and bat, which means walking. An Acrobat is a performing artist and an athlete. Acrobats participate in competititons and demonstrations involving difficult feats of balance, agility and coordination.

Here are some places where you can learn more about acrobatics:

National Circus School - http://www.enc.qc.ca/
The National Circus School is a private educational institution. Its mission is to train the next generation of acrobatics & circus artists. It is the only professional private school in acrobatics & circus arts in North America.  

Cheerleading Stunt Academy - http://www.cheercsa.com/
CSA is the professional training academy. Based in the midwest USA, we teach those interested in basic through advanced training of stunts, tumbling and more for cheerleading.

Acrobatic School - http://www.ballet-academy.com/acrobatics.htm
The director of the school is a former acrobat with numerous national awards and winner of a national TV talent scout entertainment program.

Grupo Capoeira Brasil - The Netherlands - http://members.tripod.com/~CapoeiraBrasil/main.html
Home Page of Grupo Capoeira Brasil, Mestre Paulão - The Netherlands. Capoeira (from Brasil) is a combination of martial arts, dance, acrobatics and music.