Dual Channel Photoplethysmography Studies of Cardio-Vascular Response to the Body Position Changes

Renars Erts, I Kukulis, J Spigulis
2005 Photon Migration and Diffuse-Light Imaging II   unpublished
The dual-channel photoplethysmography studies of physiological responses during 3-stage orthostatic test were performed. Clear differences in heartbeat rate, pulse wave transit time and blood pressure variations of healthy volunteers and diabetic patients have been observed.
doi:10.1364/ecbo.2005.tuh38 fatcat:3g7e2ebvn5ezvfz4ylj5ixa4ma