Table 8 Functional classes by Short Physical Performance Battery (SPPB) score and age groups 80 years and over
Gait Parameter | Male | Female | ||||||
|---|---|---|---|---|---|---|---|---|
Functional ability | 80y+ Total | 80y+ Robust | 80y+ Transient | 80y+ Frail | 80y+ Total | 80y+ Robust | 80y+ Transient | 80y+ Frail |
n = 84 | n = 14 | n = 36 | n = 34 | n = 150 | n = 21 | n = 59 | n = 70 | |
Pref n = 234 | ||||||||
 1. Velocity [cm/s] | 102.2 ± 23.9 | 125.5 ± 18.7 | 108.2 ± 19.0 | 86.3 ± 19.6 | 99.7 ± 20.2 | 117.8 ± 16.9 | 107.2 ± 14.9 | 87.8 ± 17.8 |
 2. Stride length [cm] | 117.0 ± 21.2 | 134.5 ± 16.9 | 123.9 ± 17.2 | 102.4 ± 17.3 | 108.4 ± 16.1 | 121.8 ± 12.9 | 114.3 ± 11.0 | 99.3 ± 15.6 |
 3. Walk ratioa [cm/(steps/min)] | 0.56 ± 0.09 | 0.60 ± 0.09 | 0.60 ± 0.09 | 0.51 ± 0.08 | 0.49 ± 0.07 | 0.53 ± 0.05 | 0.51 ± 0.06 | 0.47 ± 0.07 |
 5. Double support time [ms] | 343 ± 74 | 278 ± 43 | 333 ± 71 | 380 ± 66 | 318 ± 68 | 263 ± 36 | 296 ± 47 | 353 ± 73 |
 8. Stride length CVb [%] | 5.0 ± 2.8 | 3.8 ± 1.9 | 4.5 ± 2.1 | 6.0 ± 3.5 | 4.7 ± 2.8 | 3.4 ± 1.3 | 4.0 ± 1.8 | 5.7 ± 3.5 |