In the text a three element model for muscle was presented, consisting of a linear spring $($constant kO $),$ a dashpot $($constant $O),$ and a contractile element that generates a tension TO for a period C after being stimulated $($Fig$.8\mathrm{.}17).$ Predict the muscle length L for all $r<mn>0</mn>$ in response to a single stimulus at time $t=0$ during an isotonic experiment with imposed tension $LtT{x}_1{x}_{2}T1.$ The muscle length before stimulus $isLO$ and upon relaxation the muscle cannot stretch past $LO.$ Sketch your predictions $on$ a graph $ofL$ versus $t.$

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Figure $8\mathrm{.}17$ Three element model for muscle. $x_{1}is$ the length $of$ the dashpot portion $of$ the muscle $(assumed$ equal $to$ the length $of$ the force generator$)$ and $x_{2}is$ the length $of$ the elastic portion $of$ the muscle. See the text for the description $of$ the characteristics $of$ the dashpot and spring. Inset shows the force generated $by$ the active element $as$ a function $of$ time following a single stimulation.