Figure 1
From: An EEG-based study of discrete isometric and isotonic human lower limb muscle contractions
A sketch of the experimental setup for A) isometric knee extension, B) isometric knee flexion, C) isotonic knee extension, D) isometric ankle plantar flexion, E) isometric ankle dorsiflexion, F) isotonic ankle plantar flexion, and G) isotonic ankle dorsiflexion. For isometric exercises the direction of the applied force is indicated by a dashed arrow. For isotonic exercises the direction of movement is indicated by solid arrows.