Figure 4. The intensity of pain (Numeric Rating Scale- NRS; 0-10 values) during the experimental periods. Values of NRS before immobilization (Baseline) and after acute (R2), recovery (R4) and maintenance (R6) phases of creatine (CR) and placebo (PL) groups. * Indicates a significant difference between the PL and the CR groups (p < 0.05). Values are means ± SD.