Vivian Chow poses at a promotion for a body shaping center in Hong Kong, on Thursday, March 13, 2008. She has been appointed the image ambassador of the body shaping center. [Photo: Wideo/ent.qq.com]

Hong Kong actress Vivian Chow has been appointed the image ambassador of a body shaping center in Hong Kong.

The treatment is said to reduce unnecessary body fat and tighten muscles.

Chow said skinniness does not equal fitness. A balanced proportion is more crucial to maintain healthy body mass index.

Chow will shoot three series of photos for the center's advertisements.

Henry Lau, a famous Hong Kong fashion designer, has designed several dresses for her to wear in the advertisements.