###### Abstract  
Futsal is classified as a high-intensity intermittent sport or repeated-sprint sport. Explosive and very fast movements are performed with short reaction time, interspersed with playing time of 3 to 6 min during the 40 min match, at intensities of 85-90% of maximum HR. Performance factors such as agility, sprint repetition capacity, aerobic endurance capacity, lower body power, and speed are associated with the game actions. These performance factors can be affected by the athlete's body composition. The aim is to determine the relationship between the different physical and physiological performance parameters and body composition in top-level women's futsal players. The subjects of the study were 12 elite female futsal players (25.17 \(\pm\) 4.75 years old) competing in the First Division Spanish League. An anthropometric assessment was conducted by an ISAK level III anthropometrist for three days during the competitive period. The sum of 4, 6 and 8 skinkolds and body composition were calculated with anthropometric data. Performance tests were conducted to evaluate agility, ability to repeat sprints, velocity and the explosive power of lower extremities in the playing court with specific warm up and previous explication during 2 days in the same week as the anthropometric tests. The tests used for that purpose were: \(t\)-test, Yo-Yo test, repeat-sprint ability (RSA), speed test, and jump test (S, CM) and ABK). Pearson correlations were used to establish the different associations with a \(p\)-value < 0.05. The results showed a negative correlation between agility and the fat component, and a positive correlation between the muscle component and aerobic capacity, agility, speed, and ABK jump. Body composition plays a fundamental role in the development of performance-related skills in women's futsal. futsal; female athlete; performance; body composition; anthropometry; agility; speed; VO\({}_{2}\)max; sprint ability +
Footnote †: journal: Applied  
of the HRmax are recorded, with this intensity maintained for 80% of the match time, along with a maximum oxygen consumption level of 75% [6; 7]. In addition, an average of nine different actions per minute are performed, at least two of them being of high-intensity [8], and with these situations related to aerobic power [9]. Therefore, these intensities are difficult to maintain due to the accumulation of metabolites, such as the infold in blood lactate, the depletion of muscle phosphocreatine deposits, or changes in intermuscular coordination that affect contraction [10]. In light of these demands, and the fast and explosive game actions, several authors state that the repeat sprint ability (RSA), defined as the ability to repeat these high-intensity actions [11; 12; 13; 14; 15], should be considered when evaluating performance in indoor football, as it can be used to discriminate the competitive level of an indoor football player [16; 17]. Likewise, the speed of the player, which also influences the speed of the actions and the game, is another determining factor [18]. Another performance factor to consider is agility [19], defined as a rapid movement of the whole body with changes in speed and direction in response to various stimuli [20], which can be decisive in neutralizing the actions of the opponent, reducing the risk of injury, and improving the player's performance [21]. On the other hand, in terms of technique, the explosive power of the lower extremities is decisive for ball striking and explosive actions [22]. Lastly, due to the rules of the game of futsal, players require high aerobic capacities, as they can cover up to 4.5 km per match, as well as a good development of anaerobic energy pathways [16]. All these sport performance parameters can be modified by the athlete's body composition [23]. The fat percentage can influence the sprint time and the body power assessed by the vertical jump.