Data for heart rate, blood pressure and variability studies are collected continuously throughout laboratory measurement sessions.


The figures demonstrate the technologies employed to measure and record beat-to-beat continuous blood pressure, heart rate, arterial waveform, electrocardiogram and respirations. Data converge on our computer system (right upper panel) through the DATAQ analog to digital conversion system (left upper panel) from which they are multiplexed through a high speed PC - permanent records are kept on CDROM. Finger plethysmography (Finometer, finapres) is shown in middle panels calibrated against a standard Dinamapp oscillometry BP system. The Right lower panel shows a Respitrace transducer used to measure normallized thoracic chest excursions. Unfortunately the velcro has separated.


Peripheral Vascular Properties Measured by Strain Gauge Plethysmography (SPG)
Laser Doppler Flowmetry (LDF)
Indicator Techniques to Measure Blood Volume and Cardiac Output
Heart Rate and Blood Pressure
Near Infrared Spectroscopy
Microneurography and Muscle Sympathetic Nerve Activity (MSNA)
Transcranial Doppler Ultrasound (TCD)
Impedance Plethysmography (IPG)
Skeletal Muscle Pump