Skip to main content

Table 6 Comparison of results for static posturography obtained in the one-leg standing position in the THR and control groups (Student’s t-testa and Mann-Whitney test)

From: Does total hip replacement impact on postural stability?

   1O vs. 1C 1 N vs. 1C
variable group mean (SD) min - max median p mean (SD) min - max median p
Y (mm/s) THR control 26.25 (11.49) 14.0–55.9 24.1 0.355 22.56 (7.86) 12.9–42.0 21.1 0.869
22.89 (9.52) 10.5–50.4 21.7 22.89 (9.52) 10.5–50.4 21.7
X (mm/s) THR control 29.26 (9.43) 13.7–49.6 28.5 0.267a 29.88 (9.20) 17.2–57.6 28.2 0.213
26.61 (7.11) 12.9–40.4 26.0 26.61 (7.11) 12.9–40.4 26.0
spectrum Y (Hz) THR control 1.093 (0.332) 0.565–1.943 1.041 0.386a 1.072 (0.224) 0.672–1.474 1.056 0.148a
1.163 (0.225) 0.762–1.750 1.182 1.163 (0.225) 0.762–1.750 1.182
spectrum Y (mm) THR control 1.753 (0.342) 1.208–2.512 1.710 0.767a 1.796 (0.285) 1.298–2.394 1.751 0.405a
1.724 (0.328) 0.990–2.715 1.684 1.724 (0.328) 0.990–2.715 1.684
spectrum X (Hz) THR control 0.990 (0.211) 0.509–1.315 0.971 0.987a 0.980 (0.224) 0.415–1.523 0.969 0.838a
0.990 (0.142) 0.688–1.321 1.001 0.990 (0.142) 0.688–1.321 1.001
spectrum X (mm) THR control 1.105 (0.204) 0.753–1.556 1.086 0.134a 1.129 (0.289) 0.702–2.058 1.042 0.126
0.996 (0.280) 0.554–1.570 0.999 0.996 (0.280) 0.554–1.570 0.999