Table 6.
Stepwise regression analysis outcomes: assessing the impact of muscle characteristics on knee function scores
| Scores | Muscle Characteristics | Standardized Coefficients (Beta) | Regression coefficients (95% CI) | P |
|---|---|---|---|---|
| HSS | ||||
| BFL_G | -0.388 | -0.733 (-1.070 ~ -0.396) | 0.000 | |
| ST_G | -0.323 | -0.807 (-1.262 ~ -0.352) | 0.001 | |
| BFL_PCSA | 0.492 | 1.581 (0.977 ~ 2.185) | 0.000 | |
| VM_EI | -0.300 | -0.102 (-0.165 ~ -0.038) | 0.003 | |
| KSS | ||||
| BFL_G | -0.603 | -2.005 (-2.562 ~ -1.447) | 0.000 | |
| BFL_PCSA | 0.419 | 2.368 (1.420 ~ 3.315) | 0.001 | |
| WOMAC | ||||
| BFL_G | 0.178 | 0.724 (0.190 ~ 1.258) | 0.010 | |
| ST_G | 0.200 | 1.078 (0.357 ~ 1.800) | 0.005 | |
| BFL_PCSA | -0.181 | -1.250 (-2.207 ~ -0.292) | 0.013 | |
| VM_EI | 0.792 | 0.578 (0.477 ~ 0.678) | 0.000 |
RF Rectus Femoris, VM Vastus Medialis, VL Vastus Lateralis, BFL Biceps Femoris long head, ST Semitendinosus, WOMAC Western Ontario and McMaster Universities Arthritis Index, KSS American Knee Society Score, HSS Hospital for Special Surgery
PCSA physiological cross-sectional area, EI echo intensity, G shear modulus, CI Confidence intervals, P p-value