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. 2026 Feb 10;8:1660332. doi: 10.3389/fspor.2026.1660332

Figure 4.

Graph A shows SMR power in microvolts squared decreasing across baseline, terrestrial, and aquatic tasks. Swimmer group (red) starts higher than control group (blue) throughout. Graph B shows percentage change in SMR power rate. aquatic task (red circle) has more reduction than Terrestrial task (blue triangle) for both control and swimmer groups. Error bars and significant differences are indicated.

SMR power and ΔSMR power rate. (A) the power of SMR at Cz on different task conditions. (B) ΔSMR power rate at Cz on different task conditions. Both groups exhibited reduced SMR power during task conditions compared to baseline. post-hoc tests revealed that in the control group, SMR power significantly decreased in both terrestrial and aquatic tasks. In the swimmer group, a significant power decrease during the aquatic task. The ΔSMR power rate was significantly greater during the aquatic task than during the terrestrial task in the swimmer group. In contrast, the control group showed no significant difference in ΔSMR power rate between the two tasks. * Significant difference, p ≤ 0.05.