| |
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
|
-
aGS: ground stroke; *p < 0.05, **p < 0.01; †p < 0.05, before vs after in the same trial.
