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. 2013 Feb 20;8(2):e55861. doi: 10.1371/journal.pone.0055861

Figure 2. Experimental Protocol and effect of CK-2066260 on active tension at submaximal activation.

Figure 2

A) Skinned skeletal muscle fibers (TC muscle) were stretched, held for 7 min, and were then released. During the hold phase, the muscle was exposed to various pCa activating solutions, and was then relaxed again. B) Effect of CK-2066260 on active tension at submaximal activation level (pCa = 6.25). Active tensions at a range of CK-2066260 concentrations (black symbols). The maximal active tension (pCa 4.5) at 0 µM CK-2066260 is shown to the right in red.