Fig. 3From: A novel application of strain sonoelastography can detect changes in Achilles tendon elasticity during isometric contractions of increasing intensityAchilles tendon sonoelastography during an isometric ramp contraction. Elasto-Dual images of the Achilles tendon during the isometric ramp contraction; the regions of interest (i.e., yellow boxes) define the two tissues examined for the calculation of the strain ratio. The six different boxes represent the different contraction levelsBack to article page