In the Modeling Tissues as Springs chapter of Unit 7 we estimated the typical spring constant of the Achilles tendon to be . During a jump the tendon may experience strain of more than 0.06, or 6 %. [...In the Modeling Tissues as Springs chapter of Unit 7 we estimated the typical spring constant of the Achilles tendon to be . During a jump the tendon may experience strain of more than 0.06, or 6 %. [3] We can use our equation for elastic potential energy above, but first we need to find the stretch distance corresponding to that strain value for a typical Achilles tendon length of 0.15 m.
