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Table 4 Non-parametric tests for relative phase T8-sacrum at 0.67 and 1.56 m/s

From: Reliability and validity of spinal coordination patterns during treadmill walking in persons with thoracic spine pain – a preliminary study

Comparison Case subjects Control subjects
   X2 Kendall’s W P X2 Kendall’s W P
Walking speeds T1 69.9 0.920 <0.001 62.8 0.827 <0.001
T2 66.2 0.871 <0.001 62.0 0.816 <0.001
    Wilcoxon Z    Wilcoxon Z  
T1 and T2 0.67 m/s   -3.823 <0.001   -3.823 <0.001
1.56 m/s   -2.052 0.04   -3.823 <0.001
  Time 1 Time 2
Groups (Mann Whitney U Test) 0.67 m/s    0.452    0.418
1.56 m/s    <0.001    <0.001