To understand the scientific foundation of the Max Pulse, please read this article-
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3394104/.
(The above article contains a section called 1. Pre-Processing PPG Signals. This is technical signal information and can be skipped. Most of the information is in Section 2).
To see a peer reviewed research study using an earlier version of the Max Pulse (called the Meridian DPA) please read this study 2015-Digital Photoplethysmography for
Assessment of Arterial Stiffness
Example of Full Study on the Technology – Assessment of Vasocative Agents and Vascular Aging by the Second Derivative of Photoplethysmogram Waveform. from the American Journal of Hypertension.
The Quotes and Articles Below Are A Small Representation of the Extensive Research Over Time into Photoplethysmography, Accelerated Photoplethysmography.
“Noninvasive pulse wave analysis is useful for evaluation of vascular load and vascular aging. It is usually measured at the palpable artery, including carotid, femoral and radial arteries. These pulse wave tracings provide more precise information concerning blood pressure changes than ?systolic and diastolic pressures only” Download This Study Here 1998-Assessment of Vasocative Agents
1998-Plethysmogram and Arterial Distensibily
“In conclusion, the present study has shown, in a cohort of untreated and treated hypertensive subjects, that aortic PWV was a better marker of the presence of AA [atherosclerotic alterations]… PWV seems to be useful for screening of arteriosclerotic independent of age.” Download This Study Here 1999-Assessment of Vascular Aging
2002- Pulse Wave Velocity and Second Derivative
2002-Arterial Stiffness and Pulse Contour
2002-Finger Volume Pulse Assessment
2005-Photoplethysmograph Utility of Second Derivative
“Ultimately, the low-cost and simplicity of this optical-based technology could offer significant benefits to healthcare (e.g. in primary care where non-invasive, accurate and simple-to-use diagnostic techniques are desirable). The further development of PPG together with its non-invasive nature can place this methodology among other tools used in the management of vascular disease.” Download this Study Here 2007- Optical Techniques in the Assessment of Peripheral Arterial Disease
“In this study, we demonstrate the clinical utility of a marker of arterial stiffness to stratify CVD risk in individuals using the digital pulse wave form analysis technique. This study demonstrates a close association between SI [stiffness index ] and CVD risk score estimation using the ESC HeartScore model. More importantly, the discriminatory properties of the SI in identifying higher risk groups were significantly better than those of conventional cardiovascular risk indices such as total cholesterol level and fasting blood sugar measurements.” – Download This Study Here- 2008-Measurement of Stiffness Index by Digital Volume
Pulse Analysis
2008-Measurment of Arterial Stiffness Index
“…our validation of the DPA against the gold standard method suggests that DPA is a valuable tool for estimation of vascular status. Since the DPA method is fast, relatively inexpensive and operator independent, it could implicate advantages in clinical practice and screening.” Download This Study Here 2015-Digital Photoplethysmography for
Assessment of Arterial Stiffness
Overview article
“Arterial waveform analysis has the potential to assist physicians in positively identifying individuals who exhibit the development of vascular disease and begin appropriate treatment – long before symptoms or clinical signs appear…” Download This Study Here- It Starts in the Wall- By Jay N Cohn, President, International Society of Hypertension