SpO2 Difference Between Fingers of the Hand During Sequential Desaturation and Step Resaturation

The aim of the project is to experimentally compare the fingers of the hand in terms of measured concentrations of peripheral blood oxygen saturation (SpO2) in healthy humans during gradual desaturation in the range of 60-100% SpO2 and simultaneously during a step change from the hypoxic phase to the recovery phase (return to physiological values).

Inclusion Criteria:Passing the initial examination, which will determine the following data: finger circumference, heart rate, blood pressure and blood oxygen saturationExclusion Criteria:post-traumatic conditions of the upper limbs affecting the perfusion of the fingers or injuries or skin diseases on the fingers.pneumothorax or a condition after cardiovascular surgery.anemia, bradycardia, hemoglobinopathy or other diseases of the cardiovascular system, pregnancy, diabetes, hypotension or hypertension.