## 2 Materials and Methods
### Procedures  
_Body height and body mass._ A stadiometer with \(\pm\)1 mm precision was used to measure the players' body height (Seca 213, Seca, Hamburg, Germany), and a mechanical scale was used to determine body mass (Seca 761, Seca, Hamburg, Germany). _Warm-up._ Before the protocols, the players performed the same warm-up protocol at each visit, consisting of 5-minute jogging and ball warm-up, a 3-minute dynamic warm-up consisting of a series of dynamic stretching movements covering 15 m, and 2-minute static stretching movements, respectively. _Internal load._ The rate of perceived exertion (RPE) was determined using the 10-point Borg scale [41] for internal load. The players were informed of this scale during their first measurement visit. Responses from the players were taken verbally, and the RPE was recorded. _Thermal imaging._ Thermal images were measured with a FLIR ONE(r) Gen 3 (FLIR ONE, FLIR Systems, Wilsonville, OR, USA) Apple Lightning connector-type calibrated thermal camera, which according to the specifications has an accuracy +/\(-\)3 \({}^{\circ}\)C or +/\(-\) 5%, equipped with an 80 \(\times\) 60 sensor with a pixel size of 17 \(\upmu\)m and a thermal sensitivity of 150 mK [42; 43]. The acclimatization period to determine skin temperature was 10 min, and the TISEM checklist was used to verify that factors that could affect thermographic measurements were taken into account [44]. The FLIR ONE(r) Gen 3 (FLIR ONE, FLIR Systems) mobile application was used to evaluate the images. The camera was placed 1 m away from the players and held perpendicular to their body parts. Images were recorded in a controlled environment, where no one could disturb the measurement at a distance of 5 m and where there was no other equipment. During the measurements, the players were asked to take off their clothes, and their images were taken in a standing position with only their boxers on. Temperature reference points were taken from nine regions, namely the gastrocnemius for the calf, hamstrings, quadriceps femoris, rectus abdominis for the abdominals, thoracolumbar fascia for the lower back, triceps brachii, biceps brachii, pectoralis major, and deltoids for the shoulder, separately on the right and left sides of the body. The ambient temperature during the tests was 19 \({}^{\circ}\)C throughout all sessions, and the players were limited to the same type of clothing throughout the protocols. Thermal  
Figure 1: Study design. imaging recorded thermal asymmetries in degrees Celsius and exported them to a Microsoft Excel spreadsheet. _CMJ_. The jump height was measured with an Optojump (Optojump, Microgate, Bolzano, Italy) via the CMJ testing protocol. CMJ was completed by the players by quickly bending down to 90\({}^{\circ}\) knee flexion, with their hands-free, and then immediately jumping as high as possible and then landing on the ground again. The participants were asked to jump twice, and the highest value was recorded in cm. _FCM and PAP protocols_. The FCM protocol consists of four movements and three sets in total. The FCM protocol is as follows: one repetition of an isometric squat (90\({}^{\circ}\) knee angle) with 85% of 1 RM (lasting for three seconds), 20 s of rest, three drop jumps from a height of 50 cm, 20 s of rest, three dynamic squats (90\({}^{\circ}\) knee angle) with 50% of the players' body mass, 20 s of rest, and three hurdle jumps (hurdle height is 50 cm and distance between each hurdle is 1.5 m) [38]. The rest interval between sets is 5 minutes. The PAP protocol consists of three repetitions and one set of back squats (90\({}^{\circ}\) knee angle) with 90% 1 RM. _3 \(\times\) 3 basketball game_. 3 \(\times\) 3 basketball games were played in accordance with the FIBA 3 \(\times\) 3 official game rules. However, some modifications were made by the researchers. The games were played over a single 10-minute period, as stated in the regulations. Playtime was not stopped throughout the game, and if the ball went out, the ball was fed by the researchers to avoid wasting time.