Figure 4.

Fatigability measurements on the geniohyoid muscle after sustained hypoxic challenges. When muscle tension force produced by the GH muscles were compared between Control vs. 15 vs. 30 h at each time-point, 30 s-point only showed a significant difference between Control and 30 h (Control 118.37 ± 12.81 vs. 30 h 146.09 ± 8.54, P = 0.035, where mean ± Standard Deviation).