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(□)
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/BWa)
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(□)

a: Newton meter/body weight.

: Student’s t-test.

: Welch’s t-test.

: Mann–Whitney U-test.

Eitzen et al.

Eitzen et al. BMC Musculoskeletal Disorders 2012 13:258   doi:10.1186/1471-2474-13-258

Open Data