Key result
Doppler echocardiography during exercise showed the fraction of systole relates to heart rate as St = 0.01exp(4.14-40.74/HR), allowing for accurate mean arterial pressure calculation.
Population
20 healthy subjects, age 20-50 years
Design
Cross-sectional
Authors
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May refine MAP estimates during exercise research; leaves open validation in patients before clinical use.
Observational (n=20)
A new mathematical model accurately calculates mean arterial pressure during exercise by adjusting the fraction of systole according to heart rate.
Moran et al. (1995) conducted an observational in Healthy (n=20). Exercise-induced heart rate elevation was evaluated on Fraction of systole (St) from the heart cycle related to heart rate. Doppler echocardiography during exercise showed the fraction of systole relates to heart rate as St = 0.01exp(4.14-40.74/HR), allowing for accurate mean arterial pressure calculation.
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