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Figure 1 Representative strain rate (upper) and circumferential shortening strain (lower) curves from one participant. This example is showing a typical strain rate pattern with a marked E-wave in early diastole and a less pronounced A-wave close to end diastole. ECC = shortening circumferential strain; ER_E = E-wave from diastolic strain rate; SR_A = A-wave from diastolic strain rate; SR_S = peak systolic strain rate.