(A) Pictogram of the <i>biceps brachii</i> elbow flexor and its distal tendon with a mechanical model of the distal tendon in dynamic (B) and static conditions (C).

(A) Pictogram of the biceps brachii (in red) and its lower tendon (in orange) attached to the radius. (B) A general tendon model including the tendon weight mT, non linear stiffness Fk(Δl), non linear damping , and friction to surrounding tissue . (C) This model is obtained by applying static conditions to the model shown in (B).