Abstract #3000

Low-Magnitude Hits Matter: Single-Season Longitudinal DTI Study on Asymptomatic High School Football Players

Ikbeom Jang¹, Taylor Lee², Trey E. Shenk³, Victoria N. Poole⁴, Eric A. Nauman^2,5,6, Larry J. Leverenz⁷, and Thomas M. Talavage^1,5

¹School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, United States, ²School of Mechanical Engineering, Purdue University, West Lafayette, IN, United States, ³Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA, United States, ⁴Institute for Aging Research Instructor in Medicine, Harvard Medical School, Boston, MA, United States, ⁵Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, United States, ⁶Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, United States, ⁷Department of Health and Kinesiology, Purdue University, West Lafayette, IN, United States

The potential consequences of repeated low-magnitude head acceleration events (HAEs) have been less frequently investigated compared to immense HAEs. Retrospective examination of diffusion-weighted-imaging data collected longitudinally from male high school athletes was used to examine the hypotheses that athletes who experience repetitive HAEs will exhibit greater changes in diffusivity than athletes who do not experience repetitive HAEs and that low-magnitude HAEs will affect the integrity of the white matter.

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