The aim of the study was to examine whether a single bout of exercise to volitional exhaustion, performed under
moderate normobaric hypoxia (H), would affect psychomotor performance (PP) in differently trained athletes. For this
purpose, ten strength-trained (S) athletes, ten endurance-trained (E) athletes and ten healthy men leading a sedentary
lifestyle as a control (C) group performed voluntarily two graded exercise tests until volitional exhaustion (EVE) under
normoxia (N) and H (FiO2 = 14.7%). We measured the peripheral level of the brain derived neurotrophic factor (BDNF),
choice reaction time (CRT) and the number of correct reactions (NCR) as indices of PP. Psychomotor tests were performed
at rest, immediately after the EVE and 3 minutes after the EVE. Venous blood samples were collected at rest, immediately
after cessation of each EVE, and 1 h after each EVE. The results showed that the EVE significantly (p < 0.05) impaired
CRT under N and H, and NCR under H only in the E group. The higher WRmax in the E compared to the S and C groups
was associated with a significant (p < 0.005) increase in adrenaline (A) and noradrenaline (NA). There were no significant
differences between conditions (N vs. H) in the BDNF at rest and after exercise. The EVE impaired cognitive function
only in the E group; higher involvement of the sympathetic nervous system, A and NA may also play a role in this
phenomenon. Therefore, it can be concluded that exposure to H did not have a negative impact on CRT or NCR. Moreover,
BDNF did not improve cognitive function.