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Figure 8


Fig. 8. Force depression due to active shortening in muscle 179. (A) Force plotted as a function of time. The solid black line represents the control contraction generated at the shorter length. The broken red line represents force with a shortening ramp generated during the contraction in muscle 179. `{Delta}F' indicates the force depression or the percentage difference between the peak force of an isometric contraction held at the final, shortened length and the peak force of a contraction with active shortening. In this representative trial, active shortening (broken, red line) depressed the force generated by 16% as compared to the force generated during the control contraction (solid, black line). (B) Muscle length and stimulation (yellow squares) plotted as a function of time of the shortening contraction (broken, red line) compared with the control contraction (solid, black line).





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