Observational Study
Copyright ©The Author(s) 2020.
World J Orthop. Mar 18, 2020; 11(3): 158-166
Published online Mar 18, 2020. doi: 10.5312/wjo.v11.i3.158
Table 2 The median value and quartiles, Wilcoxon signed rank test and effect size r for women regarding interspinous pressure pain thresholds before (pre-test) and after (post-test) exposure to prolonged flexed lumbar sitting posture
VariablesPre-test median (quartiles)Post-test median (quartiles)Z-standardised test statisticP valueEffect size r
L1-L2353 (314, 434)295 (236, 346)-3.1800.002-0.43
L2-L3319 (271, 416)286 (219, 347)-2.8300.005-0.39
L3-L4299 (281, 400)261 (229, 338)-2.5510.011-0.35
L4-L5306 (265, 395)233 (214, 351)-2.6910.007-0.37
All variables (L1-L2, L2-L3, L3-L4 and L4-L5)331 (288, 403)269 (227, 344)-2.9700.003-0.40