###### Abstract
Therefore, the efficiency of the cardiorespiratory system is considered one of the most crucial components of the physical readiness of football players [5]. The match running performance (MRP) of football players has been the focus of researchers in recent years [15; 16]. It has been established that, in professional football, players can cover total distances ranging from 9 to 14 km during matches, of which 5-15% are covered by high-intensity running [17]. Two important energy components determine energy expenditure in the game: the way players move and the way they control the ball. The energy expenditure of forward running is lower than that of backward and lateral running [18; 19]. A football match's progression is typically associated with a gradual decline in the speed of runs, a fall in the number of sprints, and a shortening of the distance covered at maximum speed, especially in the later part of the game [20]. The culprit of this decrease in speed and in the frequency of sprints has been identified as a sharp decrease in glycogen in the working muscles of the players as the match moves forward. This viewpoint is supported by an increase in the blood lactate of players in the latter stages of matches [21]. More rapid elimination of lactate from the blood as the game progresses is a significant concern because it determines, at least in part, how quickly an athlete will become fatigued [22]. Working muscle oxygen deficiency is thought to be a regulatory factor in the metabolic changes that cause the depletion of muscle glycogen resources and the inhibition of glycolytic enzyme activity. A greater lactate threshold indicates that a player can maintain greater average intensity in a task without lactate accumulation [21]. Anaerobic threshold (AT) and VO2 max measurements are frequently used to assess aerobic fitness. It is important to note that players with higher values of VO2 max during high-intensity activities achieve lower blood lactate concentrations compared to players with lower VO2 max values [23]. The majority of the published studies on the relationship between lactate threshold and endurance have shown a strong correlation, indicating that training-induced improvements in cardiorespiratory endurance are significantly associated with improvements in lactate threshold [24; 25]. While outdoor tests can be used to indirectly evaluate both VO2 max and AT, laboratory treadmill testing provides the most reliable measurement [26]. A previous study [26] has analyzed the correlation of cardiorespiratory pitness and team performance, player position, and physical characteristics. The mentioned study shows that cardiorespiratory fitness does not differentiate between age, weight, height, team performance, and player position, but VO2 max varies with age, weight, height, and BMI [26]. The study also found a strong correlation between the physical requirements of player positions throughout a match and the aerobic capacity of players playing those positions, which should be considered in soccer training [13]. In addition, [PERSON] et al. [27] reported that measures of ventilatory equivalent, a determinant of running economy, at all sub-maximal exercise intensities were inversely related to the volume and percentage of very-high-intensity activities. Today, it is known that coaches and sports scientists can tailor training plans based on well-defined physiological parameters such as VO2 max, maximum heart rate, and blood lactate concentration [28]. Although recent studies have revealed an association between cardiorespiratory parameters and running performances, such as high-intensity running [29; 30] and total distance covered [31], it should be emphasized that conflicting results have been obtained in the study by [PERSON] et al. [32], where no association between VO2 max and MRP was found. Therefore, these findings need to be verified. Regarding the association between lactate and MRP, only one study has shown an association between lactate levels and the total distance covered [33].