Genome-wide association study of exercise addiction among elite wrestlers

Bulgay, C, Kasakolu, A, Bıyıklı, T, Koncagul, S, Kazan, HH, Ahmetov, II, Ergun, MA, Griffiths, MD ORCID: https://orcid.org/0000-0001-8880-6524 and Szabo, A, 2025. Genome-wide association study of exercise addiction among elite wrestlers. Brain Sciences, 15 (2): 102. ISSN 2076-3425

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Abstract

Background: Exercise addiction, marked by an inability to control exercise and associated with distress that clinically impairs daily activities, is a significant but underrecognized issue in physical activity and health. While its physiological, psychological, and behavioral aspects have been studied, the genetic basis of exercise addiction remains poorly understood, requiring further investigation. The present study conducted a genome-wide association study of exercise addiction among elite Turkish wrestlers.

Methods: The sample comprised 67 male wrestlers (34 freestyle wrestlers and 33 Greco-Roman wrestlers). Exercise addiction was assessed using the Exercise Addiction Scale. Whole-genome genotyping was performed using DNA microarray.

Results: Using a genome-wide approach (p < 1.0 × 10−⁵), we identified six suggestively significant single-nucleotide polymorphisms (SNPs) associated with exercise addiction status. Of these, the high-addiction alleles of five SNPs (PRDM10 rs74345126, near PTPRU rs72652685, HADHB rs6745226, XIRP2 rs17614860, and near GAREM2 rs1025542) have previously been associated with an increased risk of mental health disorders such as anxiety and depression or higher levels of physical activity. We also examined potential associations between the genetic markers previously linked to addiction-related traits such as obsessive–compulsive disorder and cigarette smoking, and personality traits linked to negative emotions including neuroticism. Using this candidate gene approach (p < 0.05), we identified three additional SNPs associated with exercise addiction in the same direction of association (DEFB135 rs4841662, BCL11A rs7599488, and CSRNP3 rs1551336).

Conclusions: The present study provides preliminary evidence for the genetic basis of exercise addiction, highlighting specific SNPs that may play a role in the development of this condition among elite wrestlers.

Item Type:	Journal article
Publication Title:	Brain Sciences
Creators:	Bulgay, C., Kasakolu, A., Bıyıklı, T., Koncagul, S., Kazan, H.H., Ahmetov, I.I., Ergun, M.A., Griffiths, M.D. and Szabo, A.
Publisher:	MDPI
Date:	22 January 2025
Volume:	15
Number:	2
ISSN:	2076-3425
Identifiers:	Number Type 10.3390/brainsci15020102 DOI 2355972 Other
Rights:	© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Divisions:	Schools > School of Social Sciences
Record created by:	Laura Borcherds
Date Added:	23 Jan 2025 09:09
Last Modified:	23 Jan 2025 09:09
URI:	https://irep.ntu.ac.uk/id/eprint/52912

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