NIRS	Near-Infrared Spectroscopy
CW-NIRS	Continuous Wave Near-Infrared Spectroscopy
TR-NIRS	Time Resolved Near-Infrared Spectroscopy
VOT	Vascular Occlusion Test
ICU	Intensive care unit
$Hb{O}_2$	Oxyhemoglobin concentration
$Hb$	Deoxyhemoglobin concentration
$TSI$	Tissue Saturation Index
$THC$	Total hemoglobin concentration
$DeOx$	Deoxygenation slope
$ReOx$	Reoxygenation slope
$H_{AUC}$	Hyperemic area under the curve