Velocity-based training (VBT) is a precise approach that, by measuring movement velocity, allows for the precise prescription and monitoring of training volume and intensity. In this context, ischemic preconditioning (IPC) stands out as a non-invasive ergogenic method associated with improved sports performance. Studies indicate that IPC can influence neuromuscular and physiological variables, affecting the rating of perceived exertion (RPE). Given the role of RPE in regulating training load and physiological response, investigating its relationship with IPC in the context of VBT may provide valuable insights for optimizing sports performance.

To analyze the acute effect of IPC on the RPE of basketball athletes during a training session using VBT.

This is an experimental, cross-over-designed study. The sample consisted of 24 junior basketball athletes (18.2 ± 0.4 years) randomly subjected to four experimental conditions with a wash-out period of 48–72 hours. IPC was applied bilaterally to the lower limbs (four cycles of 5 minutes of total occlusion alternated with four cycles of 5 minutes of reperfusion) with varying rest periods, all followed by Smith machine squats (3 sets to failure at 50% 1RM): 1) CR15: 15-minute rest; 2) CR30: 30-minute rest; 3) CR45: 45-minute rest; 4) CC: IPC session (20 mmHg) without rest time. The Borg CR-10 rating of perceived exertion (RPE) scale was used to assess athletes' perceived effort. Data were analyzed using the Statistical Package for the Social Sciences (SPSS – 26.0), with a significance level of P = 0.05.

The Friedman test identified significant differences in RPE between conditions and overtime (P < 0.001). Post hoc analysis with Bonferroni correction revealed significant differences between the first set of CR15 vs. the third set of CR45 (P = 0.035) and the third set of CR45 vs. the first set of CR30 (P = 0.013). Compared to the control condition, differences were also found between the first and third sets (P = 0.044) and between the first set of CC vs. the third set of CR45 (P = 0.001).

The CR45 condition elicited significantly higher perceived exertion compared to CC, CR15, and CR30. Additionally, in the CC condition, a progressive increase in RPE was observed throughout the experimental session, highlighting the significant impact of IPC on effort perception regulation during resistance training.

The rest period after IPC may directly influence RPE, affecting training load regulation and effort tolerance. These findings suggest that adjusting post-IPC recovery time can be a valuable strategy to optimize sports performance, prevent excessive fatigue, and enhance physiological adaptations, benefiting athletes and coaches in velocity-based training prescription.