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Passive properties of isolated membrane-intact dystrophic cardiac myocytes. A) Passive tension-extension relationships for membrane-intact myocytes isolated from C57BL/6, mdx, δ-SG-KO, and γ-SG-KO mice. B) Passive tension resulting from an extension to a sarcomere length of 2.1 μm. C) Maximum sarcomere length (SL) of passive extension tolerated before a terminal contracture. *P < 0.05 vs. control; n = 7–12 myocytes.
