TY - JOUR
T1 - MRI Evidence of Neuropathic Changes in Former College Football Players
AU - Adler, Caleb M.
AU - Delbello, Melissa P.
AU - Weber, Wade
AU - Williams, Miranda
AU - Duran, Luis Rodrigo Patino
AU - Fleck, David
AU - Boespflug, Erin
AU - Eliassen, James
AU - Strakowski, Stephen M.
AU - Divine, Jon
N1 - Publisher Copyright:
© 2016 Wolters Kluwer Health, Inc. All rights reserved.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Objective: To examine effects of participating in collegiate football on neural health several years after retirement. We hypothesized that relative cortical thinning and loss of white matter integrity would be observed in former players. Design: Former NCAA Division I football players were compared with demographically similar track-And-field athletes with regard to cortical thickness and white matter integrity. Setting: Participants participated in MRI scans at the Center for Imaging Research at the University of Cincinnati. Participants: Eleven former football players and 10 demographically similar track-And-field athletes. Main Outcome Measures: Normalized cortical thickness was compared between groups using 2-Tailed Student t test. As a secondary analysis, Spearman correlation coefficient was calculated between cortical thickness and number of concussions. Fractional anisotropy for regions-of-interest placed in frontal white matter tracts and internal capsule were compared between groups using 2-Tailed Student t test. Results: Football players showed significantly lower cortical thickness within portions of both the frontal and temporal cortex. Affected frontal regions included left frontal pole and right superior frontal gyrus. Affected temporal regions included portions of the superior temporal gyrus, left inferior temporal gyrus, and right middle and superior temporal gyri. Cortical thickness inversely correlated with number of reported concussions over most of these regions. In addition, fractional anisotropy was lower in the right internal capsule of former football players, relative to controls. Conclusions: These findings suggest that at least some consequences of high-level collegiate football play persist even after the cessation of regular head blows. Longer-Term studies are warranted to examine potential cognitive and functional implications of sustained cortical atrophy.
AB - Objective: To examine effects of participating in collegiate football on neural health several years after retirement. We hypothesized that relative cortical thinning and loss of white matter integrity would be observed in former players. Design: Former NCAA Division I football players were compared with demographically similar track-And-field athletes with regard to cortical thickness and white matter integrity. Setting: Participants participated in MRI scans at the Center for Imaging Research at the University of Cincinnati. Participants: Eleven former football players and 10 demographically similar track-And-field athletes. Main Outcome Measures: Normalized cortical thickness was compared between groups using 2-Tailed Student t test. As a secondary analysis, Spearman correlation coefficient was calculated between cortical thickness and number of concussions. Fractional anisotropy for regions-of-interest placed in frontal white matter tracts and internal capsule were compared between groups using 2-Tailed Student t test. Results: Football players showed significantly lower cortical thickness within portions of both the frontal and temporal cortex. Affected frontal regions included left frontal pole and right superior frontal gyrus. Affected temporal regions included portions of the superior temporal gyrus, left inferior temporal gyrus, and right middle and superior temporal gyri. Cortical thickness inversely correlated with number of reported concussions over most of these regions. In addition, fractional anisotropy was lower in the right internal capsule of former football players, relative to controls. Conclusions: These findings suggest that at least some consequences of high-level collegiate football play persist even after the cessation of regular head blows. Longer-Term studies are warranted to examine potential cognitive and functional implications of sustained cortical atrophy.
KW - brain injury
KW - college football
KW - concussion
KW - diffusion tensor imaging
KW - magnetic resonance imaging
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U2 - 10.1097/JSM.0000000000000391
DO - 10.1097/JSM.0000000000000391
M3 - Article
C2 - 27755011
AN - SCOPUS:84991454156
SN - 1050-642X
VL - 28
SP - 100
EP - 105
JO - Clinical Journal of Sport Medicine
JF - Clinical Journal of Sport Medicine
IS - 2
ER -