Hemodynamics Monitoring During Lower Body Negative Pressure (LBNP) Induced Controlled Hypovolemia

Hemodynamics Monitoring During Lower Body Negative Pressure (LBNP) Induced Controlled Hypovolemia

To monitor the changes in central and peripheral monitors/waveforms during gradual hypovolemia induced by lower body negative pressure in healthy volunteers.

The primary aim of this research is to identify the most robust site for monitoring hypovolemia as well as assess changes in peripheral waveforms monitored by the pulse oximeter collected from different sites (finger, ear, forehead, and nose), blood pressure, cerebral oximetry and peripheral venous pressure during gradual hypovolemia induced by lower body negative pressure (LBNP) in healthy volunteers.

Inclusion Criteria:

* Healthy volunteers aged 20-45 with

Exclusion Criteria:

• Pregnant women
• Under 20 years of age
• Subjects with coronary artery disease, diabetes, epilepsy and hypertension