Table 3. Initial and final linear regression model statistics for prediction of Day-2 pain ratings.
| Initial Model | |||||
|---|---|---|---|---|---|
| B | Standard error | Beta | t | Sig. | |
| Constant | 10.97 | 7.23 | 1.52 | 0.16 | |
| Age | -0.38 | 0.21 | -0.45 | -1.85 | 0.09 |
| Sex | 1.05 | 1.40 | 0.24 | 0.75 | 0.47 |
| BMI | -0.01 | 0.18 | -0.01 | -0.05 | 0.96 |
| # Repetitions | 0.03 | 0.06 | 0.12 | 0.45 | 0.66 |
| PANAS-Pos | 0.17 | 0.11 | 0.41 | 1.54 | 0.15 |
| PANAS-Neg | -0.29 | 0.32 | -0.23 | -0.91 | 0.38 |
| PSQI | 0.12 | 0.28 | 0.10 | 0.42 | 0.68 |
| IPAQ | 0.00 | 0.00 | 0.19 | 0.96 | 0.36 |
| PCS | 0.01 | 0.09 | 0.04 | 0.13 | 0.90 |
| Isometric force | 0.00 | 0.00 | -0.08 | -0.38 | 0.71 |
| PPT index Gas. | 0.00 | 0.00 | -0.18 | -0.65 | 0.53 |
| Mean cPDT | 0.00 | 0.06 | -0.01 | -0.02 | 0.98 |
| Mean cPTT | -0.06 | 0.04 | -0.46 | -1.25 | 0.24 |
| TSP | 0.61 | 0.28 | 0.43 | 2.19 | 0.05* |
| CPM | 0.01 | 0.04 | 0.07 | 0.34 | 0.74 |
| Final Model | |||||
| Constant | 9.74 | 3.90 | 2.50 | 0.02* | |
| Age | -0.35 | 0.13 | -0.42 | -2.63 | 0.02* |
| PANAS-Pos | 0.15 | 0.07 | 0.35 | 2.30 | 0.03* |
| Mean cPTT | -0.05 | 0.02 | -0.45 | -2.88 | 0.01* |
| TSP | 0.61 | 0.22 | 0.43 | 2.79 | 0.01* |
PANAS, Positive and Negative Affective Schedule (Pos = Positive subscale, Neg = Negative subscale); PPT, pressure pain threshold; Gas., Gastrocnemius muscle; TSP, temporal summation of pain; cPTT, cuff pain tolerance threshold; # Repetitions, number of calf raises completed. Significant independent predictive value indicated (P<0.05)