Participant-specific linear relationships among the activities of the heads of the triceps surae and between plantar flexion (PF) torque and activity of each head of the triceps surae.

Linear regression analysis was applied to the muscle activities recorded for each of the 12 participants when generating a PF torque ranging from 10% to 50% of the maximum torque (lower PF torque) and from 60% to 100% of the maximum torque (higher PF torque). MG: medial gastrocnemius; LG: lateral gastrocnemius; Sol: soleus; %KEMVC: target vastus lateralis activity as a percentage of the maximum; Slope: slope of the regression line; Intercept: intercept of the regression line; r2: coefficient of determination. (XLSX)