Figure 6.

Network analysis of difference in parameters value before and after WBC and SS therapy in CFS patients. The variables were grouped according to categories illustrated by colour of nodes: cognitive function (green), fatigue scales (blue), vascular system function (magenta), cardiac muscle function (red) and autonomic nervous system function (brown). The size of the dots next to the variable names is continuously related to the number of statistically significant correlation coefficients with other variables. Colour of edges denotes sign of correlation: blue indicate negative, while red indicates positive correlation. Edge width and intensity of colour denote the strength of the relationship. Δ (delta) refers to differences in result before and after the WBC and stretching programme. CFQ—Chronic Fatigue Scale, FSS—Fatigue Severity Scale, FIS—Fatigue Impact Scale, HR—Hear Rate, SI—Stroke Index, HI—Heather index, PEP—Pre-ejection period, LVET—Left Ventricular Ejection Time, CI—Cardiac Index, LVWI—Left Ventricle Work Index, TPRI—Total Peripheral Resistance Index, mBP—Mean Blood Pressure, PWVaortic—Aortic Pulse Wave Velocity, SBPaortic—central systolic blood pressure, Total BEI—baroreceptor effectiveness index, LF/HF—sympathovagal balance, TMT A—Trial Making Test part A, TMT B—Trial Making Test part B, TMT B-A—Difference in result between TMT B and TMT A, Coding I—number of words left after first minute of coding test; Coding II—number of words left after second minute of coding test.