Are athletes active in high-contact sports at risk of impaired executive functioning? A quasi-experimental study on competitive mixed martial arts (MMA) athletes.
Abstract: The study of high-contact sport athletes and the implications of repetitive head injury (RHI) associated with these sports has been at the forefront of traumatic brain injury (TBI) research for the last decade. The present study represents a quasi-experimental study exploring whether an experimental group (N=39) consisting of amateur and professional competitive mixed martial arts (MMA) athletes differ in three operations of executive functioning ability (shifting, updating and inhibition) when compared to a control group (N=44) of non-contact sports athletes. Participants completed a self-report measure of executive functioning ability as well as six computerized executive function (EF) tasks. The results from the study demonstrated no statistically significant differences between the experimental group and the control group on the performance of each executive functioning operation. A moderate negative correlation was found between the number of years competing and performance on shifting and updating in the experimental group. A moderate negative correlation between the number of reported competitive fights and all three EF operations within the experimental group was also reported. The results also showed a statistically significant difference in the beliefs of executive functioning abilities between the experimental group and the control group. The experimental group reported a higher level of belief in poorer executive functioning ability than that of the control group. These findings provide evidence that while competing in MMA does have implications on executive functioning abilities, they are not in line with previous research done on other high-contact sports athletes.
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