Figure 3From: Changes in flexion-relaxation phenomenon and lumbo-pelvic kinematics following lumbar disc replacement surgerySignificant correlations between changes in EMG values (Δ EMG) at the ES at L2 (a and b) and L5 (c and d) and reported changes in clinical outcomes. Flexion relaxation phase (FRP), quiet standing (QS) changes in Oswestry Disability Index (∆ ODI) and visual analogue scale (∆VAS), ρ: statistical significance and r: correlation.Back to article page