Pulse transit time measured by photoplethysmography improves the accuracy of heart rate as a surrogate measure of cardiac output, stroke volume and oxygen uptake in response to graded exercise

Author: Pollonini L   Padhye N S   Re R   Torricelli A   Simpson R J   Dacso C C  

Publisher: IOP Publishing

E-ISSN: 1361-6579|36|5|911-924

ISSN: 0967-3334

Source: Physiological Measurement, Vol.36, Iss.5, 2015-05, pp. : 911-924

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Abstract