An Exploratory Comparison of Subjective Mental Fatigue Following a Task Designed to Replicate the Observation of Game Film.

Laboratory-induced subjective mental fatigue (MF) has been shown to decrease sport-related performance (23, 38), yet there is a lack of research identifying tasks in real-world sport environments that induce MF (37). Since the identification of real-world tasks that induce MF may inform activities undertaken in the daily training and competition environments, the purpose of the current study was to compare changes in MF following a task designed to replicate the observation of game film to changes in MF following completion of a laboratory-based task (e.g., Stroop test). On separate counterbalanced visits, participants ( = 6) completed either (1) 35 min of replicated game film observation or (2) 35 min of the Stroop test. Visual analogue scales were used to measure MF, and a repeated measures analysis of variance [2 (time) x 2 (task)] was used to compare changes in MF following each task. No significant difference in changes in MF were found between conditions, (1, 5) = 1.226, = 0.319, and no main effect differences were found in MF pre-to-post for either task, (1, 5) = 2.211, = 0.197. Further efforts to identify real-world mentally fatiguing tasks are warranted.