Parameters of cardiomyocyte calcium dynamics. A. Peak fluorescence ratio was not different between HG and nonHG, except at 6 Hz where there was a trend for higher peak ratio in HG. B-E. Time to peak fluorescence ratio, exponential decay time constant, time to 50% decay in fluorescence ratio and diastolic fluorescence ratio were not different between HG and nonHG. F. Area under the fluorescence ratio transient was higher in HG compared to nonHG at 2 Hz and demonstrated similar trend at 4 and 6 Hz. #P<0.1, *P<0.05; n=8 in each group.