Figure 3. Simple main effects between and within groups on RPE score (LS means). *Denotes significance at p < 0.05; **Denotes significance at p < 0.01; ***Denotes significance at p < 0.001. SSGs = Small-Sided Games; HIIT = High-Intensity Interval Training; RPE = Rate of Perceived Exertion; LS means = least squares means.