Table 3: Regression analyses of kinetic variables of Left-sided Achilles tendinopathy (Left foot).
| Dependent variable | Adjustment for Confounder | Independent Variable | B | P-value | R2 (%) | CI (95%) |
| Pain Domain | - | Weight Acceptance Peak Index (%) | -1.075 | 0.014 | 81.6 | -1.783, -0.366 |
| Age | -1.058 | 0.046 | 81.7 | -2.084, -0.031 | ||
| Age + BMI | -0.405 | 0.286 | 96.6 | -1.611, 0.802 | ||
| - | Weight Acceptance Rate (kgf/%) | 0.004 | 0.010 | 84.4 | 0.001, 0.006 | |
| Age | 0.004 | 0.024 | 87.9 | 0.001, 0.007 | ||
| Age + BMI | 0.002 | 0.343 | 96.0 | -.004, 0.008 | ||
| - | Impulse (kgf.%) | -0.108 | 0.044 | 67.8 | -0.211, -0.005 | |
| Age | -0.125 | 0.100 | 70.4 | -0.295,0.044 | ||
| - | Active Force Peak (kgf) | -0.102 | 0.025 | 75.4 | -0.182,-0.021 | |
| Age | -0.103 | 0.074 | 75.5 | -0.225,0.019 | ||
| Function Domain | - | Weight Acceptance Peak Index (%) | -0.763 | 0.026 | 76.7 | -1.347, -0.179 |
| Age | -0.906 | 0.014 | 89.8 | -1.467, -0.345 | ||
| Age + BMI | -0.989 | 0.103 | 90.3 | -2.476, 0.498 | ||
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B = Regression coefficient, CI = Confidence Intervals at 95%, R2 = Coefficient of determination P-value significant < 0.05 Definitions: Weight acceptance peak index: Slope of the force curve during the weight acceptance phase Weight acceptance rate: Slope of force curve during the loading phase Impulse: Area under the curve of the force/time curve for each foot strike Active force peak: Maximum force for the active peak of the force/time curve for each foot strike |
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