Table 2 Sagittal plane gait characteristics of all hip osteoarthritis patients and controls
HIP OA PATIENTS (n=48) | CONTROLS (n=22) | MEAN DIFFERENCE (95% CI) | P-VALUE (TEST USED) | |||
|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
GAIT VELOCITY (m/sec) | 1.53 | 0.146 | 1.65 | 0.150 | −0.12 (−0.197 to −0.045) | 0.002(□) |
KINEMATIC PARAMETERS (°) | ||||||
Hip excursion | 37.4 | 7.78 | 47.4 | 6.22 | −10.0 (−13.79 to −6.25) | <0.001(□) |
Knee excursion | 41.2 | 6.08 | 36.9 | 7.07 | 4.3 (1.02 to 7.60) | 0.011(â–¡) |
Ankle excursion | 19.9 | 3.83 | 19.0 | 7.62 | 0.9 (−1.84 to 3.61) | 0.519(□) |
Initial contact | ||||||
 Hip joint angle | 29.1 | 5.15 | 29.5 | 7.43 | −0.4 (−3.45 to 2.67) | 0.825(◊) |
 Knee joint angle | 3.0 | 3.86 | 3.5 | 3.91 | −0.5 (−2.43 to 1.56) | 0.669(□) |
 Ankle joint angle | 0.4 | 3.19 | 0.9 | 3.69 | −0.5 (−2.18 to 1.28) | 0.604(□) |
Midstance | ||||||
 Hip joint angle | 6.4 | 5.29 | 2.4 | 6.78 | 4.0 (0.97 to 6.92) | 0.021(◊) |
 Knee joint angle | 10.9 | 4.31 | 8.5 | 4.33 | 2.4 (0.17 to 4.60) | 0.035(□) |
 Ankle joint angle | 3.9 | 2.85 | 3.1 | 2.95 | 0.9 (−0.60 to 2.36) | 0.238(○) |
Peak hip extension | ||||||
 Hip joint angle | −8.3 | 7.61 | −17.9 | 6.85 | 9.6 (5.83 to 13.42) | <0.001(□) |
 Knee joint angle | 20.5 | 8.22 | 11.5 | 6.04 | 9.0 (5.17 to 13.00) | <0.001(□) |
 Ankle joint angle | 6.6 | 4.34 | 6.1 | 4.15 | 0.5 (−1.71 to 2.69) | 0.658(□) |
Toe-off | ||||||
 Hip joint angle | −2.7 | 6.45 | −10.3 | 7.00 | 7.6 (4.17 to 10.98) | <0.001(□) |
 Knee joint angle | 44.2 | 5.26 | 40.3 | 6.21 | 3.9 (1.10 to 6.74) | 0.009(□) |
 Ankle joint angle | −13.3 | 4.48 | −12.9 | 7.38 | −0.4 (−3.24 to 2.45) | 0.783(○) |
KINETIC PARAMETERS (Nm/BW a) | ||||||
Initial contact | ||||||
 Hip joint moment | −0.202 | 0.0709 | −0.234 | 0.0969 | 0.032 (−0.0095 to 0.0726) | 0.130(○) |
 Knee joint moment | −0.134 | 0.0387 | −0.156 | 0.0396 | 0.019 (−0.0001 to 0.0399) | 0.051(○) |
 Ankle joint moment | −0.005 | 0.0127 | −0.013 | 0.0089 | 0.008 (0.0017 to 0.1377) | 0.002(○) |
Midstance | ||||||
 Hip joint moment | −0.105 | 0.0858 | −0.023 | 0.7891 | −0.082 (−0.1247 to −0.0386) | <0.001(□) |
 Knee joint moment | −0.037 | 0.0822 | −0.020 | 0.0760 | −0.017 (−0.5834 to 0.0244) | 0.440(□) |
 Ankle joint moment | - 0.291 | 0.1035 | −0.237 | 0.0761 | −0.054 (−0.1037 to −0.0051) | 0.007(□) |
Peak hip extension | ||||||
 Hip joint moment | 0.284 | 0.1538 | 0.459 | 0.2017 | −0.176 (−0.2631 to −0.0885) | <0.001(□) |
 Knee joint moment | 0.075 | 0.0737 | 0.053 | 0.1136 | 0.022 (−0.0230 to 0.0674) | 0.408(◊) |
 Ankle joint moment | −0.566 | 0.1584 | −0.671 | 0.1976 | 0.105 (0.0173 to 0.1935) | 0.035(□) |
Toe-off | ||||||
 Hip joint moment | 0.226 | 0.0576 | 0.235 | 0.0804 | −0.005 (−0.3902 to 0.02830) | 0.780(□) |
 Knee joint moment | 0.058 | 0.0196 | 0.061 | 0.0279 | −0.003 (−0.1486 to 0.0083) | 0.621(◊) |
 Ankle joint moment | 0.008 | 0.0082 | 0.009 | 0.0086 | −0.001 (−0.0045 to 0.0040) | 0.892(□) |