A team of researchers from Newcastle trialled non-invasive optical multi-site photoplethysmography (PPG) technology to assess cardiovascular responses to standing as the frequent finding of autonomic dysfunction and symptoms on standing has the potential to provide a diagnostic biomarker in CFS.
A significant reduction in the overall pulse timing response to controlled standing was found for the CFS group. Pulse wave abnormalities represent a potential objective measure to help differentiate between CFS patients and healthy controls.
