Table 2. Test -retest reliability of level walking for Control and ABI. |
|
Control
t test Dependent, equal
variance, 2 tailed |
Control
λ Bias
(Random error) |
Control
ɸ %
variability |
Control
Mean
ICC [3, 1] |
| Walking speed |
t (20) = 0.66, NS |
-0.02 (0.25) |
8.1 |
0.70 |
| Gross Oxygen Consumption |
t (20) = 1.02, NS |
-0.30 (2.73) |
11.6 |
0.55 |
| Net Oxygen Consumption |
t (20) = 1.53, NS |
-0.43 (2.43) |
12.7 |
0.68 |
| Gross oxygen cost |
t (20) = 0.32, NS |
0.00 (0.05) |
14.7 |
0.42 |
| Net oxygen cost |
t (20) = 0.19, NS |
0.00 (0.02) |
17.3 |
0.61 |
|
ABI
t test Dependent, equal
variance, 2 tailed |
ABI
λ Bias
(Random error) |
ABI
ɸ %
variability |
ABI
Mean
ICC [3,1] |
| Walking speed |
t (9) = 0.53, NS |
-0.02 (0.28) |
13.7 |
0.89 |
| Gross Oxygen Consumption |
t (9) = 0.47, NS |
0.18 (2.33) |
11.4 |
0.51 |
| Net Oxygen Consumption |
t (9) = 0.65, NS |
0.24 (2.02) |
10.5 |
0.64 |
| Gross oxygen cost |
t (9)=2.87, * |
0.05 (0.10) |
17.4 |
0.97 |
| Net oxygen cost |
t (9)=3.02, * |
0.04 (0.04) |
20.8 |
0.93 |
|
Walking speed (m·s); oxygen consumption (ml·kg·min) and cost (ml·kg ·m). NS = non-significant. |
ɸ Percentage variability was calculated by averaging the absolute value of the difference between each measurement of the group, dividing this by the average of the group, and multiplying by 100. |
λ Bias (mean difference) (± Random error) (1.96 SD difference). |
|