Figure 1.
Design of the experimental protocol.
The sleep-wake periods and the three test sessions performed after a reference night (RN), a control night (CN), and an experimental night (EN) are shown.
Figure 2.
Circadian rhythm of gastrointestinal temperature.
Mean values (black line) recorded every 60 s during 24-h period are shown. The mean best-fit curve (red line) between the experimental data and the cosine curve of the 20 participants is shown (r = 0.97). Red vertical arrow illustrates the beginning of the three morning test sessions.
Figure 3.
Follow up of ILCs and KSS scores recorded during the nocturnal simulated driving task.
Data are mean ± SEM (n = 20).
Table 1.
Anaerobic power output values and Fatigue Index (mean ± SEM) obtained during the 60-s Wingate test performed the following morning after 3 different nights.
Figure 4.
Evolution of power output values recorded throughout the 60-s Wingate test.
Evolution of power output values as a function of time points throughout the 60-s Wingate test after a reference night or RN (green symbols), a control night or CN (red symbols) and an experimental night or EN (black symbols). Intervals 1 and 2 during which kinetic and kinematic variables were recorded and analyzed are shown. Data are mean ± SEM (n = 20).
Table 2.
Kinetic variables: Angle of peak torque and range in torque variation (mean ± SEM) recorded over a complete crank cycle during interval 1 (I1) and interval 2 (I2) of the Wingate test performed the following morning after 3 different nights.
Table 3.
Kinematic variables: Mean angle and ROM (mean ± SEM) of the hip, knee and ankle angles measured throughout the complete crank cycle during interval 1 (I1) and interval 2 (I2) of the Wingate test performed the following morning after 3 different nights.