## 4 Discussion  
Due to the large number of variables studied, we tried to simplify the interpretation of the results to obtain a differentiating profile. We have chosen those that were correlated with each other. Thanks to the EFA [15] and the Varimax rotation [16], we went from twenty-five variables to only five: F-Fat mass, F-Muscle mass, F-Bone mass, F-Skinfolds, and F-Robustness. As usually happens in multivariate procedures, the initial sample was reduced from 574 to 375 people, because the lack of a single piece of datum in one of the variables means that the results of that person cannot be counted.  
The population that we have analyzed is made up of young people with sedentary behavior and amateur athletes who are not professionals, which allows us to assess the differences in body measurements between these groups.  
Some sports are difficult to classify, for example, football. We decided to classify it as a sport that mainly uses the lower extremity because, ignoring the goalkeeper, in the rest of the positions the upper extremities are not used. Obviously, they are important, but you tend to mainly develop the lower extremities.  
After performing the univariate ANOVA, we observed that sedentary people tend to present higher values in the variables related to fat and lower values in terms of skinfolds. These results support the ideas of many authors that the regular practice of physical exercise, regardless of the sports modality chosen, favors the general health of an individual [1; 2; 3]. As [PERSON] [7] and [PERSON] [8] found, we observed that people who practice sports that use the upper and lower body tend to present higher values in the factors of muscle mass and robustness. The difference between our research and that of our colleagues was that in our case, the sample was made up of amateur level athletes, while in theirs, the population was composed of athletes at the federation and even professional level. However, we observed the same thing, and that is that the regular practice of physical exercise favors values related to muscle mass and robustness, regardless of whether the person who practices it does so recreationally or for competitive purposes.  
Other authors, such as [PERSON] [21], observed that athletes who practice sports in which the lower body is mainly used tend to have a lower Cormic Index and a higher Relative Index of the Lower Limbs than those who use the upper and lower body. We observed the same thing, but again, with the caveat that in our case, the population that we analyzed was not professional.  
Based on our results, we can affirm that there are differences between the morphotypes of athletes depending on the type of sport that they perform on a regular basis, always for recreational purposes.  
The previous studies that we have been able to review usually analyze the anthropometric characteristics of an individual separately [9; 22; 23], while in our case, we analyze them all together. This could be the starting point for future research and may also be useful for recruiting sports talent at an early age. In this way, we could try to recognize possible future elite athletes earlier, to enhance their own anthropometric characteristics and make them achieve their highest sports performance quickly and continuously over time [24; 25; 26; 27]. Although this hypothesis can be very controversial, regardless of whether an individual has good aptitudes to perform a certain sport, if they do not have the correct attitude, it is very likely that they will never be able to develop their full potential. Obtaining the morphological profiles of the different study groups could be useful for anyone who wants to start practicingsports, since this allows us to have an overview of the common characteristics of athletes who perform different disciplines and even of people who do not exercise.