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Figure 4: Normalized force-velocity and power-load curves from a pig left ventricular myocyte preparation at long and short sarcomere length obtained during half-maximal Ca2+ activations. Pig cardiac myocyte preparations exhibited little sarcomere length dependence of loaded shortening and power output. Inset shows bar plot (mean ± SD) of peak normalized power output at long (~2.30 μm) and short (~1.90 μm) sarcomere length ( myocyte preparations).