Table 2.
Baseline characteristics of the subjects (N = 1009)
| 60–69 years (n = 396) | 70–79 years (n = 365) | Over 80 years (n = 248) | Total (N = 1009) | |
|---|---|---|---|---|
| Age (year) | 65.5 ± 2.49 | 74.7 ± 2.70 | 86.0 ± 4.69 | 73.9 ± 8.65 |
| Height (cm) | 172.60 ± 5.19 | 170.84 ± 4.97 | 168.46 ± 5.45 | 170.9 ± 5.42 |
| Weight (kg) | 74.70 ± 9.60 | 72.45 ± 9.28 | 69.07 ± 9.90 | 72.5 ± 9.80 |
| SMI (kg/m2) | 7.82 ± 0.59 | 7.60 ± 0.64 | 7.20 ± 0.73 | 7.59 ± 0.69 |
| Handgrip strength (kg) | 40.87 ± 6.65 | 36.43 ± 6.60 | 29.51 ± 6.88 | 36.47 ± 8.01 |
| Gait speed(m/s) | 1.41 ± 0.20 | 1.27 ± 0.21 | 1.01 ± 0.28 | 1.26 ± 0.27 |
| FTCST(s) | 9.29 ± 2.67 | 10.70 ± 3.13 | 13.94 ± 4.56 | 10.94 ± 3.83 |
| Balance test(s) | ||||
| side by side stand | 10.00 ± 0.00 | 10.00 ± 0.00 | 9.8 ± 1.17 | 9.9 ± 0.95 |
| semi-tandem stand | 9.94 ± 0.43 | 9.90 ± 0.57 | 9.5 ± 1.68 | 9.81 ± 0.95 |
| tandem stand | 9.48 ± 2.82 | 9.53 ± 1.55 | 8.32 ± 2.65 | 9.21 ± 2.44 |
| SPPB (score) | 11.53 ± 0.83 | 11.23 ± 1.07 | 9.68 ± 12.61 | 10.97 ± 1.53 |
SMI skeletal muscle mass index, FTCST five-time chair stand test, SPPB Short Physical Performance Battery