Data analysis
MP
Statistical analyses were conducted using a statistical software package (IBM SPSS Statistics 23.0, Armonk, NY: IBM Corp.) and were presented in mean and standard deviation (SD). After normality (i.e. Shapiro–Wilk) and variance assurance (i.e. Levene), a one-way repeated measure analysis of variance was used to compare the effect of different supplementations on performance, and maximum heart rate (MHR), HGS, and MP after each of the Cindy protocol. When the results revealed a significant difference between conditions, a Bonferroni post hoc analysis was conducted to identify the differences. To compare the RPE between different levels of the Cindy protocol, the Kruskal–Wallis test was used.