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Updated: Jul 1, 2026
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A Neuroscientific Approach to the Examination of Concussions in Student-Athletes
Published on: December 8, 2014
Polygenic Score Identifies Athletes at Increased Risk for Slower Recovery After Sport-Related Concussion: A
Zhiqi Zhang1,2,3, Jill L Reiter1,4, Kelly N H Nudelman4
1Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN, USA.
Sports Medicine (Auckland, N.Z.)
|June 30, 2026
Summary
A higher polygenic score (PGS) is linked to longer concussion recovery times. This genetic insight may help personalize treatments for athletes and military personnel experiencing prolonged recovery after concussion.
Area of Science:
- Genetics
- Neuroscience
- Sports Medicine
Background:
- Individual differences in concussion recovery are influenced by genetic variations.
- A polygenic score (PGS) aggregates effects of multiple genetic variants to explain recovery time variability.
Purpose of the Study:
- To investigate the association between a PGS and recovery time after sport- or military-related concussions.
- To understand genetic influences on concussion recovery for personalized treatment strategies.
Main Methods:
- Genome-wide genotyping data from 4659 individuals with concussions were analyzed.
- A genome-wide association study (GWAS) identified single-nucleotide polymorphisms (SNPs) associated with time to return-to-play initiation (RTPi).
- A PGS was constructed from identified SNPs and validated for association with RTPi and delayed recovery.
Main Results:
- A higher PGS (using 49 SNPs) was significantly associated with longer RTPi after concussion (12% increase per SD).
- Higher PGS correlated with an 82% increased odds of slow RTPi (≥14 days).
- Gene Ontology analysis implicated synaptic mechanisms in concussion recovery.
Conclusions:
- Elevated PGS is a significant predictor of prolonged concussion recovery.
- Genetic insights from PGS can inform personalized concussion management strategies.
- This research highlights the role of genetics in concussion recovery duration.
