dar uma cambalhota - to do a handspring, to somersault, to perform a somersault.

http://en.wikipedia.org/wiki/Handspring_(gymnastics)

http://www.ehow.com/video_4977733_perform-somersault.html?pid=1&wa%5Fvrid=291bd4b2%2D22bb%2D49a8%2D8163%2D2b0c51b3ef70&cp=1&wa%5Fvlsrc=continuous

http://oque.dictionarist.com/pirouette
There are several meanings there.   I think that, in general, to spin whirl or gyrate would do the trick.

 To Ballet and in others fields you can look crawl within Google.

http://www.wordreference.com/pten/salto-mortal
gainer (in aquatic sports, it seems)
somersault (presented as the same as "cambalhota")
Flip  (gymnastics )