Figure 5
From: Self-modulation of rectus femoris reflex excitability in humans

Muscle training specificity of RF Operant H-reflex Conditioning in VM (a) and VL (b) in all participants. Shaded area indicates the baseline sessions and blank area indicates training sessions. Each marker represents the individuals’ (H1–H5, S1–S2) VM and VL H-reflex means for each session. (*p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001).