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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: J Mol Cell Cardiol. 2011 Jan 11;50(4):662–669. doi: 10.1016/j.yjmcc.2010.12.023

Figure 4.

Figure 4

Faster pacing leads to an increase in the normalized Ca2+ transient variability, but an irregular pattern from one beat to the next. (A) Coefficient of variation (COV) in SSL Ca2+ transient amplitude, computed in a single cell as the standard deviation divided by the mean, and plotted as a function of PCL. (B) Map of SSL Ca2+ transient amplitude on the current beat versus amplitude on the next beat at several different PCLs as indicated.