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Force-velocity (FV) and power velocity (PV) relations from MI4W, MI20W, AMC4W, and AMC20W trabeculae at 1 μM [Ca2+]. A: FV and PV relationships MI4W, red squares, n = 8 and AMC4W, blue squares, n = 7 at maximally activated [Ca2+] (1 μM). Solid and dotted lines represent the Hill equation fits of trabeculae from control and infarcted animals respectively. B: FV and PV relationships from MI20W, red squares, n = 6, and AMC20W, blue squares, n = 9 at physiological [Ca2+] (1 μM).
