Table 2 Gait characteristics, physical function and physical activity of participants in the three groups
No or questionable dementia Group 1 (n=38) | Mild dementia Group 2 (n=39) | Moderate to severe dementia Group 3 (n=23) | ||||
|---|---|---|---|---|---|---|
Characteristics: | n | Mean (SD, min-max) | n | Mean (SD, min-max) | n | Mean (SD, min-max) |
Gait | ||||||
Gait speed, m/s | 34 | 1.10 (0.24, 0.52-1.49) | 33 | 0.91 (0.21, 0.44-1.23) | 18 | 0.87 (0.23, 0.43-1.18) |
Step time, s | 34 | 0.58 (0.7, 0.45-0.78) | 33 | 0.61 (0.1, 0.51-0.95) | 18 | 0.62 (0.9, 0.49-0.83) |
Walk ratio, SL/Cad | 34 | 0.6 (0.1, 0.3-0.9) | 33 | 0.5 (0.1, 0.4-0.8) | 18 | 0.5 (0.1, 0.3-0.8) |
SD stride velocity, cm/s | 34 | 3.86 (1.2, 2.10-7.22) | 33 | 4.13 (1.4, 2.01-6.96) | 18 | 4.0 (0.94, 2.45-5.83) |
Physical function | ||||||
SPPB score, 0-12 | 35 | 10.4 (2.1, 5-12) | 37 | 8.3 (2.7, 3-12) | 20 | 8.1 (2.8, 3-12) |
Physical activity | ||||||
Upright time, minutes | 35 | 345.7 (97.3, 148.9-637.4) | 35 | 265.7 (125.6, 95.3-572.2) | 18 | 282.4 (160.7, 74.1-648.1) |
Upright events, number | 35 | 48.8 (15.5, 26.3-92.0) | 35 | 45.9 (16.5, 23.2-91.0) | 18 | 45.2 (12.7, 26.3-70.0) |
Length of upright events, max | 35 | 83.6 (38.6, 28.4-213.0) | 35 | 68.3 (47.2, 14.0-228.2) | 18 | 67.0 (36.6, 11.4-129.2) |