Table 1.
Repeatability measures of the low-cost 2D webcam system.
| 1.0 mph |
1.5 mph |
2.0 mph |
2.5 mph |
3.0 mph |
3.5 mph |
4.0 mph |
||
|---|---|---|---|---|---|---|---|---|
| ICC | ||||||||
|
| ||||||||
| Hip | Excursion | 0.88 | 0.82 | 0.83 | 0.84 | 0.89 | 0.92 | 0.81 |
| Peak Extension | 0.76 | 0.76 | 0.75 | 0.80 | 0.84 | 0.77 | 0.83 | |
| Peak Flexion Stance | 0.85 | 0.90 | 0.91 | 0.88 | 0.88 | 0.88 | 0.79 | |
| Peak Flexion Swing | 0.89 | 0.87 | 0.87 | 0.85 | 0.85 | 0.84 | 0.81 | |
|
| ||||||||
| Knee | Excursion | 0.78 | 0.85 | 0.88 | 0.93 | 0.90 | 0.93 | 0.85 |
| Peak Extension Stance | 0.84 | 0.86 | 0.85 | 0.83 | 0.77 | 0.77 | 0.85 | |
| Peak Flexion Stance | 0.84 | 0.85 | 0.77 | 0.86 | 0.82 | 0.76 | 0.89 | |
| Peak Flexion Swing | 0.86 | 0.89 | 0.88 | 0.91 | 0.90 | 0.90 | 0.86 | |
| Stance Excursion | 0.84 | 0.86 | 0.91 | 0.90 | 0.93 | 0.89 | 0.91 | |
|
| ||||||||
| MDC | ||||||||
|
| ||||||||
| Hip | Excursion | 3.5° (10.6) | 4.8° (14.1) | 3.4° (9.31) | 3.4° (8.87) | 3.0° (7.41) | 2.6°(6.2 0) | 5.1° (11.9) |
| Peak Extension | 4.9° (37.4) | 5.5° (42.2) | 5.1° (37.8) | 4.5° (30.2) | 4.1° (25.5) | 4.5° (26.2) | 4.0° (21.7) | |
| Peak Flexion Stance | 4.7° (31.9) | 3.4° (19.8) | 3.2° (17.5) | 4.1° (20.6) | 3.7° (17.5) | 3.6° (16.5) | 4.9° (21.2) | |
| Peak Flexion Swing | 3.6° (18.0) | 3.7° (17.5) | 3.6° (15.7) | 3.8° (15.9) | 4.1° (16.8) | 4.0° (16.5) | 4.4° (17.7) | |
|
| ||||||||
| Knee | Excursion | 5.4° (9.16) | 5.4° (8.88) | 4.4° (6.70) | 3.7° (5.36) | 4.5° (6.54) | 3.6° (5.42) | 5.1° (7.77) |
| Peak Extension Stance | 5.0° (625) | 4.4° (347) | 4.2° (312) | 4.5° (225) | 5.6° (280) | 5.4° (265) | 4.5° (223) | |
| Peak Flexion Stance | 4.7° (35.7) | 5.0° (31.4) | 7.1° (33.4) | 6.7° (28.1) | 7.3° (28.8) | 8.0° (29.1) | 4.7° (16.2) | |
| Peak Flexion Swing | 5.4° (9.47) | 5.2° (8.81) | 5.0° (7.89) | 4.2° (6.49) | 4.8° (7.41) | 4.4° (6.99) | 5.2° (8.22) | |
| Stance Excursion | 3.8° (27.5) | 4.9° (28.6) | 4.9° (21.8) | 6.5° (24.9) | 4.4° (16.2) | 4.9° (16.5) | 4.1° (13.3) | |
Abbreviations: ICC (intraclass correlation coefficient); MDC (minimal detectable change); 2-D (two-dimensional); mph (miles per hour). Values within parentheses indicate MDC values as a percentage of mean scores.