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Exercise dependence, eating disorder symptoms and biomarkers of Relative Energy Deficiency in Sports (RED-S) among male endurance athletes
University of Agder, Norway.ORCID iD: 000-0003-2798-9675
University of Agder, Norway.
University of Southern Denmark, Denmar.
University of Agder, Norway.
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2019 (English)In: BMJ Open Sport & Exercise Medicine, E-ISSN 2055-7647, Vol. 5, no 1, p. 1-8, article id e000439Article in journal (Refereed) Published
Abstract [en]

Objectives To explore associations betweenexercise dependence, eating disorder (ED) symptoms and biomarkers of Relative Energy Deficiency in Sports (RED-S) among male endurance athletes.

Methods Fifty-three healthy well-trained male cyclists, triathletes and long-distance runners recruited from regional competitive sports clubs were included in this cross-sectional study. The protocol comprised the Exercise Dependence Scale (EXDS), the ED Examination Questionnaire (EDE-Q), measurements of body composition, resting metabolic rate, energy intake and expenditure and blood analysis of hormones and glucose.

Results Participants with higher EXDS score displayed a more negative energy balance compared with subjects with lower EXDS score (p<0.01). EXDS total score was positively correlated with EDE-Q global score (r=0.41, p<0.05) and the subscale score for restraint eating (r=0.34, p<0.05) and weight concern (r=0.35, p<0.05). EXDS total score and the subscales lack of control and tolerance were positively correlated with cortisol (r=0.38, p<0.01, r=0.39, p<0.01 and r=0.29, p<0.05, respectively). The EXDS subscales withdrawal and tolerance were negatively correlated with fasting blood glucose (r=−0.31 and r=−0.32, p<0.05, respectively), while intention effect was negatively correlated with testosterone:cortisol ratio (r=−0.29, p<0.05) and positively correlated with cortisol:insulin ratio (r=0.33, p<0.05).

Conclusion In this sample of healthy male athletes, we found associations between higher EXDS scores, ED symptoms and biomarkers of RED-S, such as a more pronounced negative energy balance and higher cortisol levels.

Place, publisher, year, edition, pages
BMJ Publishing Group Ltd, 2019. Vol. 5, no 1, p. 1-8, article id e000439
National Category
Sport and Fitness Sciences
Research subject
Social Sciences, Sport Science
Identifiers
URN: urn:nbn:se:lnu:diva-81732DOI: 10.1136/bmjsem-2018-000439Scopus ID: 2-s2.0-85059898974OAI: oai:DiVA.org:lnu-81732DiVA, id: diva2:1303002
Available from: 2019-04-08 Created: 2019-04-08 Last updated: 2019-08-29Bibliographically approved

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Melin, Anna K.

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