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Chronic Effects of Boxing: Diffusion Tensor Imaging and Cognitive Findings
Elisabeth A Wilde1,2, Jill V Hunter2, Xiaoqi Li2
11 Rehabilitation Research & Development, Michael E. DeBakey VA Medical Center , Houston, Texas.
Journal of Neurotrauma
|September 29, 2015
Summary
Boxing impacts brain structure, increasing ventricle size and impairing word recall. However, implicit memory remains intact, and white matter integrity is linked to cognitive function and boxing exposure.
Area of Science:
- Neuroscience
- Sports Medicine
- Radiology
Background:
- Repeated head trauma in boxing is a concern for neurological health.
- Understanding the long-term effects of boxing on brain structure and cognition is crucial.
Purpose of the Study:
- To investigate the effects of boxing on brain structure using MRI and DTI.
- To assess cognitive function, including memory and reaction time, in boxers.
- To explore the relationship between boxing exposure, brain microstructural integrity, and cognitive performance.
Main Methods:
- Magnetic Resonance Imaging (MRI) and Diffusion Tensor Imaging (DTI) were used.
- 10 boxers and 9 non-combative athletes were compared.
- Cognitive tests included word list recall and reaction time (RT) tasks.
Main Results:
- Boxers showed significantly larger Evans Index (ventricle size).
- Impaired word list recall was observed in boxers, while implicit memory (RT) was preserved.
- DTI metrics correlated with declarative memory and RT in boxers.
- Years of boxing negatively correlated with white matter integrity (FA) and recall.
Conclusions:
- Microstructural integrity of white matter tracts is associated with cognitive function in boxers.
- The extent of boxing exposure is related to white matter changes and memory deficits.
- Findings have implications for understanding chronic traumatic encephalopathy (CTE) in boxers.
