Table 4.
Optimal cut‐off points to discriminate between older subjects with and without mobility limitations, and sensitivity and specificity values
| Women | Men | |||||
|---|---|---|---|---|---|---|
| Cut‐off point | Sensitivity (%) | Specificity (%) | Cut‐off point | Sensitivity (%) | Specificity (%) | |
| Relative STS power (W·kg−1) | 2.1 | 73.7 | 86.0 | 2.6 | 79.0 | 86.6 |
| Allometric STS power (W·m−2) | 61.5 | 72.4 | 82.5 | 75.4 | 79.6 | 81.5 |
| Specific STS power (W·kg−1) | 13.6 | 76.9 | 78.6 | 14.2 | 81.6 | 84.9 |
| BMI (kg·m−2) | 28.8 | 48.1 | 58.7 | 28.2 | 47.9 | 58.8 |
| Legs SMI (kg·m−2) | 4.8 | 33.9 | 59.6 | 5.3 | 44.7 | 71.5 |
BMI, body mass index; SMI, skeletal muscle index; STS, sit‐to‐stand.