FIGURE 1.
Salivary α-amylase (sAA) levels from all subjects (both Pilots and Sensors Operators) over time. sAA levels were measured before operating flight (T0: baseline condition), every 30 min during operating flight (30 min-60 min-90 min-120 min), and 15 and 30 min after the operating flight (15 min post and 30 min post). ∗p < 0.05; ∗∗p < 0.01.