神奇的腹部肌肉 ((abdominal muscles movement))

Nauli Kriya :
http://www.youtube.com/watch?v=KqARVEOOvAM

Nauli:
http://www.youtube.com/watch?v=Y7ZjdxuH3bE&feature=related

Stomach Olympics :
http://www.youtube.com/watch?v=UsV1z2UJA1s&feature=related

Belly Dancing :
http://www.youtube.com/watch?v=PM3rS4juY8s&feature=related