A muscletendon unit is composed of a tendon with a stiffness

A muscle-tendon unit is composed of a tendon with a stiffness of 5394N/m, a muscle with a stiffness of 7570N/m, and an insertion tendon with a stiffness of 10878N/m. The muscle is 57% fast twitch and has an optimal length 0.22m. What is the stiffness of the muscle-tendon unit?

Solution

We know that, \"a muscle-tendon unit is composed of a tendon, muscle and insertion tendon with their stiffness.\"

The stiffness of the muscle-tendon unit which will be given as :

k_m-t = (stiffness of muscle) + (stiffness of tendon) + (stiffness of insertion tendon)

k_m-t = [(6985 N/m) + (7362N/m) + (10867 N/m)]

k_m-t = 25214 N/m