The photoplethysmography (PPG) derives from the change of attenuation of the light either transmitted or reflected through the tissues over which the LED light has been applied. Variation in light intensity received by the photodetector depends on the amount of blood in arteries, but the accurate waveform is also caused by arterial wall properties, e.g., arterial elasticity. Also eletromechanical film (EMFi) is an excellent sensor material for long-term applications for arterial pulse wave recordings to find out wall elasticity. The EMFi sensor measures extremely small displacements of the arterial wall and the tissue around the artery caused by the blood pressure wave signal. Comparison between the EMFi and PPG sensor shows a very close correlation inside of the pulsatile component of blood flow mechanically in the wrist and the change in light absorption on the fingertip. It is possible to separate mathematically five distinct components of the PPG and EMFi waveforms. Potentially from these non-invasively measured information about cardiac function and arterial elasticity can be calculated. When the PPG probe is attached to the fingertip or the second toe, the pulsations detected are from the cutaneous vascular bed. The factors that regulate that blood flow will have a profound effect on the photoplethysmogram, which depend on many factors of microcirculation. These components are not shown in the EMFi pulse wave. Analysis of these factors shows that the information contained in the PPG and EMFi is of great importance. In this paper we will combine arterial optical and mechanical elasticity measurements.