## 4 Discussion
Although more research must be conducted to underpin strategies to maintain Ts, the evidence from this and previous studies is promising and can provide a good baseline for practical application. Furthermore, Ts and Tm are associated with running speed and can provide practical benefits for tracking overall player preparedness [38]. The results provided in this research showed no statistically significant main effect in 10, 20, and 30 m split times (\(p=0.202\); 0.636; 0.825, respectively) between treatments. In addition, there was no difference in sequence order for the 10, 20, or 30 m times (\(p=0.494\), 0.682, and 0.764, respectively), but the interaction effect between treatment and sequence was statistically significant for allsplit times (\(p<0.05\)). Research on speed preservation using heating garments is available for various sports. [PERSON] and [PERSON] [36] conducted a study with swimmers and confirmed that swimming speed could be significantly preserved with the help of electric heating, resulting in the 50 m freestyle improving by 1.01% in the male group and by 0.38% in the female group. [PERSON] et al. [14] confirmed these claims and concluded that Tm decline could be attenuated and sprint-cycling performance could be improved after the passive period in EG compared to CG (\(p<0.001\)). However, [PERSON] et al. [13] suggested that running speed could be significantly influenced by heating garments when the outside temperature was lower (10 \({}^{\circ}\)C), but this was not the case when the research was conducted during warmer conditions (32 \({}^{\circ}\)C) (\(p<0.01\)). Our research was conducted during relatively warm weather (25-27 \({}^{\circ}\)C), so more evidence is warranted to draw decisive conclusions since outside temperature may have influenced Ts preservation. Although the experimental condition proved effective, we should explain some carry-over effects that may raise concerns about our findings. For example, the experimental condition's effects seemed more beneficial following BA than the AB sequence for all outcome variables (10, 20, and 30 m sprint). It might be that the participant's perception of the tracksuits was influenced by the order in which they were introduced to treatments. We assumed that participants following the BA sequence may have had a more robust perception of the benefits of the experimental tracksuit because it may have been presented as an improvement over the control condition. Although we did not provide any information to participants regarding the benefits of either treatment, previous knowledge and beliefs could attenuate the overall performance outcome. That may have affected sprint performance to be better in the experimental condition compared to the group that followed the AB sequence. Conversely, if participants received the experimental treatment first (in the AB sequence), they may have had higher expectations and perceived the control condition as less effective, leading to poorer sprint performance in the control condition compared to the experimental condition. [PERSON] et al. [39] argued that a placebo effect may positively influence sprint performance. However, we cannot be entirely confident that the placebo effect induced a carry-over effect since we did not control for this particular confounding factor. Nonetheless, our study provides strong evidence concerning the preservation of Ts during the experimental condition, regardless of sequence and trial, since it proved more beneficial to sprint performance than the control. There are a few limitations to this research. The main limitation is that it was conducted during relatively warm weather, which could have interfered with Ts measurements, and the outcome-variable could have been different during cold weather, where passive rest could have had a more significant impact on performance. The second limitation is that Ts and Tm measurements and their influence on various skills and abilities should be explored. Moreover, the timing of the trial may have contributed to the carry-over effect.