Table 4.
Bone mass physical fitness significant predictive values from the stepwise linear regression model for each variable in males and females.
| Balance | LB strength | Agility | Walking speed | ||
|---|---|---|---|---|---|
| Males | |||||
| Tt.BMD 38% (mg/cm3) | Overall (R2) | — | — | 0.364 | — |
| Change r2 | — | — | 0.248 | — | |
| Standardized | — | — | -0.621 | — | |
| Unstandardized | — | — | -47.736 | — | |
| Ct.BMD 38% (mg/cm3) | Overall (R2) | — | — | — | 0.37 |
| Change r2 | — | — | — | 0.195 | |
| Standardized | — | — | — | -0.557 | |
| Unstandardized | — | — | — | -6.937 | |
| Ct.Th 38% (mm) | Overall (R2) | — | — | 0.418 | — |
| Change r2 | — | — | 0.230 | — | |
| Standardized | — | — | -0.598 | — | |
| Unstandardized | — | — | -0.575 | — | |
| Females | |||||
| Trochanter aBMD (g/cm2) | Overall (R2) | 0.261 | — | — | — |
| Change r2 | 0.042 | — | — | — | |
| Standardized | 0.247 | — | — | — | |
| Unstandardized | 0.001 | — | — | — | |
| Total hip aBMD (g/cm2) | Overall (R2) | 0.281 | — | — | — |
| Change r2 | 0.049 | — | — | — | |
| Standardized | 0.265 | — | — | — | |
| Unstandardized | 0.001 | — | — | — |
LB: lower body; Tt.BMD: total bone mineral density; Ct.BMD: cortical bone mineral density; Ct.Th: cortical thickness; aBMD: areal bone mineral density. Stepwise regression model controlling for age, object length, and muscle area (for pQCT variables) and age, height, and subtotal lean (for DXA variables) as possible confounders.