Table 4 Comparison of results for static posturography obtained in the tandem position in the THR and control groups (Student’s t-testa, Welch testb, Mann-Whitney test)
From: Does total hip replacement impact on postural stability?
TOF vs. TC | TNF vs. TC | ||||||||
|---|---|---|---|---|---|---|---|---|---|
variable | group | mean (SD) | min - max | median | p | mean (SD) | min - max | median | p |
Y (mm/s) | THR control | 21.32 (9.86) | 12.6–53.4 | 17.5 | 0.469 | 21.97 (9.35) | 10.1–47.5 | 19.2 | 0.269 |
18.91 (6.98) | 9.6–37.8 | 17.9 | 18.91 (6.98) | 9.6–37.8 | 17.9 | ||||
X (mm/s) | THR control | 24.93 (8.83) | 14.7–46.4 | 22.7 | 0.895 | 26.65 (10.61) | 10.0–57.1 | 25.6 | 0.312 |
23.21 (6.14) | 12.9–39.3 | 22.7 | 23.21 (6.14) | 12.9–39.3 | 22.7 | ||||
spectrum Y (Hz) | THR control | 0.806 (0.239) | 0.331–1.261 | 0.883 | 0.832a | 0.718 (0.272) | 0.292–1.266 | 0.671 | 0.250a |
0.793 (0.220) | 0.378–1.226 | 0.808 | 0.793 (0.220) | 0.378–1.226 | 0.808 | ||||
spectrum Y (mm) | THR control | 0.890 (0.224) | 0.571–1.482 | 0.854 | 0.133 | 0.885 (0.351) | 0.477–1.888 | 0.815 | 0.680 |
0.803 (0.199) | 0.498–1.333 | 0.779 | 0.803 (0.199) | 0.498–1.333 | 0.779 | ||||
spectrum X (Hz) | THR control | 0.701 (0.205) | 0.320–1.109 | 0.729 | 0.608a | 0.715 (0.223) | 0.318–1.143 | 0.711 | 0.824a |
0.726 (0.159) | 0.447–1.107 | 0.729 | 0.726 (0.159) | 0.447–1.107 | 0.729 | ||||
spectrum X (mm) | THR control | 0.809 (0.267) | 0.449–1.393 | 0.705 | 0.316a | 0.833 (0.295) | 0.444–1.579 | 0.835 | 0.128b |
0.730 (0.194) | 0.451–1.183 | 0.730 | 0.730 (0.194) | 0.451–1.183 | 0.730 | ||||