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Cardiovascular Research

One-minute graded exercise test does not yield same values as steady-state test

According to scientists in the United States, "The stroke volume (SV) during exercise is an important index of the heart's functional capacity. A new method has been developed for the noninvasive estimation of exercise SV (SV_ex ). It requires the determination of the slope for the oxygen uptake versus heart rate relationship in the steady state of graded exercise testing (GXT)."

J.A. Davis and colleagues of California State University at Long Beach explained, "The product of the slope and a constant (reciprocal...

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