Table 2 Number of steps and daily gait speed every 3 h of NC, MCI, and GCI groups.
Characteristics | Time of day | Total (n = 1959) | NC (n = 1519) | MCI (n = 353) | GCI (n = 87) | Two-way ANCOVA | Post Hoc |
|---|---|---|---|---|---|---|---|
Number of steps, steps | 6–9 o'clock | 1299.4 ± 1220.0 | 1286.5 ± 1217.5 | 1318.6 ± 1223.2 | 1445.1 ± 1253.7 | Time of day < 0.01* Group < 0.01* Interaction = 0.09 | n.s |
9–12 o'clock | 1726.7 ± 931.6 | 1727.2 ± 917.6 | 1755.4 ± 999.2 | 1600.9 ± 889.1 | n.s | ||
12–15 o'clock | 1371.8 ± 771.1 | 1382.7 ± 769.5 | 1366.5 ± 796.8 | 1202.9 ± 675.0 | n.s | ||
15–18 o'clock | 1464.7 ± 905.6 | 1468.2 ± 883.1 | 1469.9 ± 965.3 | 1383.1 ± 1041.1 | n.s | ||
18–21 o'clock | 661.6 ± 672.0 | 659.8 ± 656.6 | 731.0 ± 763.5 | 412.6 ± 448.6 | NC, MCI > GCI | ||
Daily gait speed, cm/s | 6–9 o'clock | 98.8 ± 12.0 | 99.0 ± 11.8 | 98.1 ± 12.6 | 96.9 ± 13.7 | Time of day < 0.01* Group < 0.01* Interaction < 0.01* | n.s |
9–12 o'clock | 101.4 ± 9.6 | 101.7 ± 9.3 | 100.8 ± 9.7 | 97.8 ± 12.5 | NC, MCI > GCI | ||
12–15 o'clock | 99.8 ± 9.7 | 100.3 ± 9.3 | 98.8 ± 10.5 | 95.3 ± 12.0 | NC > MCI > GCI | ||
15–18 o'clock | 100.5 ± 10.6 | 100.9 ± 10.3 | 99.6 ± 11.0 | 95.8 ± 12.0 | NC, MCI > GCI | ||
18–21 o'clock | 92.8 ± 11.7 | 93.2 ± 11.2 | 93.1 ± 12.7 | 85.1 ± 13.0 | NC, MCI > GCI |
