Table 4.
Association of Specific Work and Specific Torque With Study Outcomes
| Persistent Severe Lower Extremity Limitation Events | ||
|---|---|---|
| Model 1 | Model 2 | |
| SubHR (95% CI) | SubHR (95% CI) | |
| Specific work | ||
| Per SD lower (48 J/kg) | 1.25 (1.15, 1.36) | 1.22 (1.12, 1.33) |
| p value | <.001 | <.001 |
| Specific torque | ||
| Per SD lower (6.5 Nm/kg) | 1.17 (1.03, 1.33) | 1.16 (1.02, 1.33) |
| p value | .017 | .03 |
| Mortality | ||
| Model 1 | Model 2 | |
| HR (95% CI) | HR (95% CI) | |
| Specific work | ||
| Per SD lower (48 J/kg) | 1.29 (1.21, 1.38) | 1.21 (1.13, 1.30) |
| p value | <.001 | <.001 |
| Specific torque | ||
| Per SD lower (6.5 Nm/kg) | 1.07 (0.99, 1.16) | 1.02 (0.95, 1.09) |
| p value | .082 | .556 |
Note: Model 1 adjusts for age, sex, race, education, height, weight, and study site. Model 2 adds adjustment for smoking, estimated glomerular filtration rate from serum cystatin C, diabetes mellitus, coronary artery disease, cardiovascular disease, depression, cognitive function, physical activity, systolic blood pressure, and statin use. HR = hazard ratio; SubHR = subdistribution hazard ratio.