Fig. 8From: A model for evaluation of the electric activity and oxygenation in the erector spinae muscle during isometric loading adapted for spine patientsRelative changes of the paraspinal muscle regional tissue oxygen saturation (MrSO2) during and after the Ito test (n = 12). The MrSO2 values (mean ± SD) are expressed as % of baseline value (value at 5 s)Back to article page