Table 2.
Parameters of the linear regression between force and rate of force development achieved during the ballistic contractions before and after the race.
| PRE |
POST |
Difference | 90% CI |
Percent difference |
Effect size (Cohen’s d) | P-value | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Lower bound | Upper bound | Mean | SD | ||||
| Slope (RFD-SF) | 7.67 | 1.88 | 7.74 | 2.22 | 0.07 | –0.55 | 0.43 | 0.9 | 1.5 | 0.03 | 0.8257 |
| y intercept | 396 | 402 | 368 | 389 | –28 | –67 | 112 | –7.1 | 6.5 | 0.07 | 0.6522 |
| R2 | 0.97 | 0.02 | 0.96 | 0.03 | –0.01 | –0.01 | 0.02 | –1.0 | 2.0 | 0.39 | 0.1165 |
PRE, before the race; POST, after the race; RFD-SF, rate of force development scaling factor. See the Section “Materials and Method” for description of the regression line.