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Differences in two-dimensional aortic flow parameters according to the subgroups based on peak oxygen uptake. (A) Average systolic flow displacement; (B) average late systolic flow displacement; (C) average diastolic flow displacement; (D) systolic flow reversal ratio. *P < 0.05 compared with PVO2 > 20 mL/kg/min. Error bars denote mean ± standard deviation.
