## 4 Discussion
The mean values of total work carried out by the lower (TWLL) and upper limbs (TWUL) and its value when performed by the lower and upper limbs (TTW) showed no statistically significant differences between series at 21 \({}^{\circ}\)C and 31 \({}^{\circ}\)C, and between 21 \({}^{\circ}\)C and 31 \({}^{\circ}\)C, separately in each series. This pattern of results indicates that the series of pulsating efforts at room and elevated ambient temperatures equally affect the fatigue processes in an athlete's body, which is manifested by a statistically insignificant difference in the sum of total work performed at 21 \({}^{\circ}\)C and 31 \({}^{\circ}\)C, amounting to only 1.12%. Tracking changes in phosphagen and glycolytic power during repeated anaerobic exercise allows for the analysis of energy metabolism in fighting conditions, as emphasized in their study by [PERSON] et al. [17], showing a high correlation between peak power and amount of work performed and performance during a fight. The nature of tournament bouts indicates that judo athletes very often compete in consecutive bouts over a period when disturbances of body homeostasis are very large and may affect the effectiveness of actions. [PERSON] et al. [48] found that short intervals between competitive bouts can influence judo athletes to enter the next bout when blood lactate levels are even at 16.1 mmol\(\cdot\)L\({}^{-1}\). The observations made in the study reveal that athletes entered successive series of anaerobic exercise at 21 \({}^{\circ}\)C, with lactate levels ranging from 12.38 mmol\(\cdot\)L\({}^{-1}\) to 13.98 mmol\(\cdot\)L\({}^{-1}\), and at 31 \({}^{\circ}\)C from 13.28 mmol\(\cdot\)L\({}^{-1}\) to 14.12 mmol\(\cdot\)L\({}^{-1}\). Differences between lactate concentrations at 21 \({}^{\circ}\)C and 31 \({}^{\circ}\)C for individual measurements did not demonstrate any statistically significant differences. This may suggest that in the anaerobic exercise series, the thermal factor did not modify exercise metabolism. Resting LA levels were within the physiologically normal range. One hour after the completion of these efforts at 31 \({}^{\circ}\)C, lactate levels were significantly higher (\(p<0.001\)) than at 21 \({}^{\circ}\)C. The low values of LA levels indicate good post-exercise recovery of the tested athletes. The higher (by 26.8%) blood lactate level in the first hour following exercise at 31 \({}^{\circ}\)C indicates the intensification of anaerobic metabolic processes, mainly due to the elevated temperature, which contributes to a shift in the acid-base balance towards acidosis resulting from water loss and reduced blood flow in muscles [11; 22]. This is manifested by a decrease in blood pH and a decrease in bicarbonate levels which, in turn, increases the demand for oxygen and forces more pulmonary ventilation. During the pulsating exercise performed at two different ambient temperatures, the body's aerobic potential may play an important role, which is probably due to the intervals applied between successive series of pulsating efforts and the temporal structure of a single series of anaerobic efforts. In an abundance of caution, it can be concluded that the proposed exercise provides information on anaerobic lactic and anaerobic lactate capacities and may allow for the assessment of aerobic potential and tolerance to a thermal stimulus of exogenous origin using appropriate testing techniques. Therefore, the results of the series of pulsating exercises provide important insight into the anaerobic endurance capacity of judo athletes and information about the course of fatigue build-up and the rate of recovery. A literature search reveals a dearth of studies focused on assessing the size of variation regarding physiological response in judo athletes to sets of anaerobic interval efforts reflecting the competition structure of a judo fight at elevated ambient temperatures.