Cognitive fatigue influence on human performance

Title: Effect of cognitive fatigue on present physical human performance. Goal: The goal of this thesis is to investigate the effect size of previous cognitive load on shooting accuracy and subsequent aerobic performance in observed group of army members. Method: An intervention randomized single blind crossover study was conducted on 17 males The measurements were conducted between November and December 2018 and in March 2019. After initial phase, each volunteer underwent two phases of the experiment in a random order. Psychological and physiological parameters were recorded, especially using standardized questionnaires, performance outcomes (heart rate, time to exhaustion during walking phase, shooting accuracy) and salivary cortisol levels. Results: Induced cognitive fatigue effects the psychophysiological state of human organism and its performance. Pearsons correlation values did not show linkage amongst psychic resistance, motivation to performance and cognitively demanding activity. Results showed the statistical significance of induced cognitive fatigue effect on shooting accuracy (p = 0,003). Also, a shift in the present mood was demonstrated in dimensions Fatigue p = 0,002 and Vitality p = 0,048 respectively. The shifts were caused by the previous aerobic load. The effect of induced..