Body composition evaluation means the quantity of the various elements inside the body. It is usually indicated by the proportion of the compositional elements. Once the ratio is unbalanced, the health of man will be seriously damaged. Therefore, the measurement and evaluation of body composition have become the topic of the world. Years' study has proved that "2-Composition Model" and "Multi-Composition Model" are the theoretical models often applied for body composition evaluation. The methods for measurement and evaluation usually applied are underwater weighing method, skinfold thickness method, bioelectrical impedance method, dual-energy X absorption method, etc. |