###### Abstract
It is important to consider that excess adipose tissue has a negative influence on sports performance, since the increase in body weight derived from fat is not accompanied by an increase in the capacity to produce greater force. Considering that acceleration is directly proportional to force but inversely proportional to body mass, excess adipose tissue at a given level of applied force will result in slower changes in speed [14]. On the other hand, the physiological demands of soccer require players to be trained in various components of physical conditioning, including aerobic capacity, speed, strength, power, and agility. Therefore, the assessment of physical condition in all its factors has been identified as an important contributor to selection in team sport athletes [15]. The implementation of appropriate, valid, and reliable aptitude tests is important to describe the profiles that fit the demands of the game [16]. In this sense, aerobic fitness tests such as the yo-yo Level 1 intermittent running test (Yo-Yo IR1) make it possible to evaluate the athlete's ability to recover from intense activity [17]. At the elite levels, female soccer players are reported to average 1500 m on the Yo-Yo IR1 [18]. Regarding the running speed in times of 10 m, the players of the Norwegian team (2.17 \(\pm\) 0.06 s) differed from the players of the first division (2.21 \(\pm\) 0.07 s) and the youth academies (2.20 \(\pm\) 0.09 s) and in their times for 40 m also ((6.12 \(\pm\) 0.02 s) versus (6.28 \(\pm\) 0.24 s) and (6.28 \(\pm\) 0.29 s), respectively) [19]. Regarding the analysis by playing position, the forwards showed better times in 10 m (2.16 \(\pm\) 0.07 s) compared to the defenders (2.19 \(\pm\) 0.06 s), midfielders (2.19 \(\pm\) 0.07 s), and goalkeepers (2.22 \(\pm\) 0.06 s). However, [PERSON] et al. [20] reported that certain physical qualities do not differ according to playing positions, a finding that is observed in footballers in Europe and other countries. Consequently, the aerobic and anaerobic energy systems are used well during games, and training should increase the ability of players to perform high-intensity exercise and improve their ability to recover between these activities. While high-speed movement only contributes to about 11% of the total distance covered, high-intensity actions are likely to be performed at the most important moments of the game, for example, competing for ball possession or helping to score or avoid a goal. It seems logical, therefore, that players with better functional skills can perform more sprints, play longer at high intensity, and have shorter recovery periods [21]. Research on performance in football has increased significantly in the last two decades [21; 22]. Professionals and scientists related to football search for key optimization factors that contribute to improving the performance of elite and sub-elite players [2; 4; 21]. However, research on women's football is still significantly lower than that on men's football [21]. The aim of this study was to explore the anthropometric profile and physical fitness of members of the Chilean women's national football team, assess the presence of differences based on the playing position and analyze the possible correlations between the studied variables. Based on the cited studies, it was hypothesized that the goalkeepers are different from the rest of the footballers, in both anthropometric and physical fitness variables, whilst the field players (defenders, midfielders, or forwards) would exhibit differences in some physical fitness variables.