Skip to main content

Table 3 The repeated measure and MANOVA tests comparing the CNV parameters (mean ± SE) between channels and groups consecutively

From: Preparatory brain activity and anticipatory postural adjustments accompanied by externally cued weighted-rapid arm rise task in non-specific chronic low back pain patients and healthy subjects

CNV parameters Control LBP F value; groups comparison
Late CNV (Fz) 6.7 ± 0.86 14.14 ± 0.86 37.36***
Late CNV (Cz) 9.02 ± 0.73 16.67 ± 0.73 54.17***
Late CNV (Pz) 7.35 ± 0.9 15.41 ± 0.9 39.95***
F value;
Channels comparison
4.35* 1.74  
Peak CNV (Fz) 7.60 ± 0.84 15.49 ± 0.84 43.82***
Peak CNV (Cz) 9.86 ± 0.75 18.02 ± 0.75 58.67***
Peak CNV (Pz) 8.10 ± 0.88 16.27 ± 0.88 42.66***
F value;
Channels comparison
4.30* 1.79  
CNV area (Fz) 0.018 ± 0.006 0.047 ± 0.006 13.22**
CNV area (Cz) 0.022 ± 0.007 0.055 ± 0.007 11.44**
CNV area (Pz) 0.018 ± 0.007 0.046 ± 0.007 8.89**
F value;
Channels comparison
1.68 1.56  
  1. Frontal (Fz), Central (Cz), and Parietal (Pz) midline channels. CNV contingent negative variation, LBP low back pain
  2. Significant values (P value < 0.05) are presented by asterisks
  3. P < 0.05; ** P < 0.01; *** P < 0.001