Figure 2.

Change in end‐diastolic normalized radius of curvature with exercise by patient group. Boxplots show the change in NRC with exercise, with raw data overlaid. The change in end‐diastolic NRC with exercise was significantly higher in HFpEF patients compared with normotensive (HFpEF vs healthy, P<0.001) and hypertensive controls (HFpEF vs HT, P=0.002). There was a trend towards a difference between HT and healthy controls, but this was not statistically significant (P=0.07). ^† P<0.001, *P<0.05. HFpEF indicates heart failure with preserved ejection fraction; HT, hypertensive controls; NRC, normalized radius of curvature.