Fig. 1
Measures obtained from NIRS during arterial occlusion test. Panel-I represents measures obtained from oxygenated myoglobin/hemoglobin (Δ[HbO2]) tracing. Panel-II represents measures obtained from total myoglobin /hemoglobin (Δ[Hbtot]) tracing. The graphs are depicting the comparison of NIRS parameters between a representative participant with OSA (OSA: red tracing) and a healthy adult without OSA (Non-OSA: blue tracing) measured during an arterial occlusion assessment of the left lateral gastrocnemius. A Baseline measured as the average of 30 s before the start of occlusion; B start of occlusion (time at 0 s); C end of occlusion; D peak hyperemic response; E ΔCOCC—maximal change in signal during occlusion; F ΔCRH—maximal change in signal during reactive hyperemia; G MHR%—maximal hyperemic response in percentage; H tM—time to hyperemic response (in seconds)