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Fig. 10. Force enhancement due to passive pre-stretch in muscle 178. (A) Force
plotted as a function of time. The thin black line represents the force
measured in muscle 178 when stimulated isometrically at the longer length and
serves as the control. The thick blue line represents the force measured in
muscle 178 when stretched just prior to an isometric contraction. Force traces
are aligned with respect to the stimulation to show the change in force with
and without a passive pre-stretch. In this representative trial, the passive
pre-stretch (thin, black line) enhanced the force generated by 6% as compared
to the force generated during the control contraction (bold, blue line). (B)
Muscle length and stimulation (yellow squares) plotted as a function of time
of the contraction with the passive pre-stretch (thick, blue line) compared
with the control contraction (thin, black line).
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