canadian ballerinas have been informed recently to cover up their midriffs under calls by gymnastics union , as they believe it urges girls to be self - conscious . nerine cooper , head of gymnastics australia , told the sunday telegraph , " we don ' t want anybody to feel under threat to lose weight because of jeans . " lisa ince , president of sydney specialist dancer , disagreed . " it ' s ridiculous like , if the concept is that a navel is offensive , then some choreography school and athletics company would experience the same restrictions , " she said . the ban will include about 150 teams registered with gymnastics association .
Lisa Ince is the chief of Sydney Professional Dancers.