Figure 7.

Summary data. Left panels: plot of systolic (pink symbols) and diastolic (black symbols) mean ± SD time values at increasing heart rates during exercise, dipyridamole and pacing stresses. Right panels: plot of systolic/diastolic time ratio as mean ± SD time values at increasing heart rates in the same patients groups; despite lower peak stress heart rates, dipyridamole patients show systolic/diastole time reversal at around 100 bpm heart rate.