Evaluation of Gait Variable Change over Time as Transtibial Amputees Adapt to a New Prosthesis Foot
Table 2
Gait data on repeat measured time points in Phase 1 while subjects adapt to the new prosthetic foot.
Gait variables
T0
T1
T2
Friedman tests χ2(2), p value
T0-T1
T1-T2
Gait Speed (m/s)
1.18 (1.00-1.28)
1.16 (1.00-1.26)
1.11 (0.85-1.21)
8.000, 0.018
0.499
0.018
Cadence (step/min)
95.6(87.3-107.4)
98.8 (86.9-109.2)
98.8(75.2-108.4)
7.185, 0.028
0.063
0.028
Step Length A (%)
53.4 (50.3-54.0)
51.0 (48.4-54.6)
50.5 (48.5-54.3)
0.286, 0.867
Step Length S (%)
46.6 (46.0-49.7)
49.0 (48.4-51.6)
49.5 (45.7-51.5)
0.286, 0.867
Stance Phase A (%)
58.4 (56.0-61.4)
59.7 (54.8-60.2)
61.9 (56.3-63.8)
3.714, 0.156
Stance Phase S (%)
61.4 (57.6-67.6)
60.2 (58.5-66.6)
61.0 (56.3-63.8)
0.000, 1.000
Swing Phase A (%)
41.6 (38.6-44.0)
40.3 (39.8-45.2)
38.1 (36.2-43.7)
3.714, 0.156
Swing Phase S (%)
38.6 (32.4-42.4)
39.8 (33.4-41.5)
39.0 (31.0-42.2)
0.000, 1.000
Double Support A (%)
10.6 (8.2-11.2)
9.2 (7.1-13.4)
12.1 (8.6-14.5)
3.429, 0.180
Double Support S (%)
8.6 (7.3-17.0)
10.0 (7.3-11.7)
11.7 (7.8-16.2)
8.615, 0.013
0.892
0.018
Single Support A (%)
38.1 (33.6-41.6)
39.9 (33.4-42.3)
38.0 (30.8-42.1)
0.286, 0.867
Single Support S (%)
41.5 (38.8-44.5)
40.6(39.8-45.3)
38.1 (36.3-44.1)
3.714, 0.156
Median value (- percentiles value), p<0.05. T0: immediately after fitting the interventional foot, T1: half an hour, T2: one hour. A: affected side, S: sound side.
