Placebo | Bicarbonate | Main effect (P-value) | |||||
---|---|---|---|---|---|---|---|
Before | After | Before | After | Trial | Time | Interaction | |
Service (out of 20) | |||||||
Accuracy | 4.1 ± 1.8 | 4.5 ± 1.5 | 3.2 ± 2.6 | 3.8 ± 1.9 | 0.215 | 0.254 | 0.844 |
Consistency | 16.9 ± 5.4 | 11.1 ± 6.0† | 13.8 ± 5.1 | 13.6 ± 5.9 | 0.861 | 0.059 | 0.004** |
Gs-Totala (out of 40) | |||||||
Accuracy | 5.5 ± 3.3 | 5.2 ± 2.5 | 6.0 ± 3.1 | 5.3 ± 2.2 | 0.758 | 0.446 | 0.694 |
Consistency | 19.5 ± 4.2 | 17.1 ± 4.3 | 17.6 ± 2.8 | 19.0 ± 4.5 | 1.000 | 0.575 | 0.088 |
Gs-Forehand (out of 20) | |||||||
Accuracy | 3.5 ± 1.5 | 2.7 ± 2.1 | 3.7 ± 1.9 | 2.3 ± 1.2 | 0.850 | 0.065 | 0.493 |
Consistency | 10.5 ± 2.8 | 9.1 ± 2.0 | 8.0 ± 1.6 | 9.3 ± 2.6 | 0.237 | 0.943 | 0.046* |
Gs-Backhand (out of 20) | |||||||
Accuracy | 2.0 ± 2.1 | 2.3 ± 1.0 | 2.2 ± 1.8 | 1.8 ± 1.9 | 0.868 | 1.000 | 0.464 |
Consistency | 9.4 ± 2.7 | 8.0 ± 2.5 | 9.7 ± 2.7 | 9.5 ± 3.0 | 0.391 | 0.046* | 0.475 |