The study of the dimensions and composition of the human body is one of the criteria on which sports specialization is based. The analysis of the body composition is well established nowadays due to the fact that the percentage of muscle tissue, bone tissue and adipose tissue which the human body contains can be quantified. It has been used for accessibility, simplicity of application, reproducibility and economy (Ramirez and Iglesias, 2006). With the somatotype we can follow the changes that occur during the growth of children and control the intensive training in children so that it produces normal and desirable effects for their correct and adequate development (Gómez et al., 2002).