Dietary supplement use is related to doping intention via doping attitudes, subjective norms, and perceived behavioural control

Journal article


Hurst, P., Ng, P., Under, L. and Fuggle, C. 2024. Dietary supplement use is related to doping intention via doping attitudes, subjective norms, and perceived behavioural control . Performance Enhancement & Health. p. 100278. https://doi.org/10.1016/j.peh.2024.100278
AuthorsHurst, P., Ng, P., Under, L. and Fuggle, C.
Abstract

The use of dietary supplements (e.g., caffeine, creatine, dietary nitrate) has shown to be related to the intention to dope (e.g., amphetamines, anabolic steroids, erythropoietin). In this study, we integrated elements of the theory of planned behaviour to better understand the relationship between dietary supplement use and doping intention. Specifically, we tested whether dietary supplement use is indirectly related to doping via doping attitudes, doping subjective norms, and doping perceived behavioural control. Competitive athletes (N = 443; 46% female, age = 27.0 ± 8.6 years old, years competing = 8.3 ± 3.5) completed measures of dietary supplement use, doping attitudes, doping subjective norms, doping perceived behavioural control, and doping intention. Parallel mediation analysis indicated that dietary supplement use was not directly related to doping intention, but instead was indirectly related via doping attitudes (effect size = 0.15), doping subjective norms (effect size = 0.17), and doping perceived behavioural control (effect size = 0.15). Contrast analyses reported no differences between each indirect effect. Our results suggest that athletes who use dietary supplements report stronger intentions to dope, which is related to more favourable doping attitudes, a greater social pressure to dope, and a perceived ease in which to dope.

KeywordsAnti-doping ; Beliefs; Drug use; Nutritional ergogenic aids
Year2024
JournalPerformance Enhancement & Health
Journal citationp. 100278
PublisherElsevier
ISSN2211-2669
Digital Object Identifier (DOI)https://doi.org/10.1016/j.peh.2024.100278
Official URLhttps://www.sciencedirect.com/science/article/pii/S2211266924000100
Publication dates
Online19 Mar 2024
Publication process dates
Accepted15 Mar 2024
Deposited20 Mar 2024
Accepted author manuscript
File Access Level
Restricted
Publisher's version
License
File Access Level
Open
Output statusIn press
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Athletes intending to use sports supplements are more likely to respond to a placebo
Hurst, P., Foad, A., Coleman, D. and Beedie, C. 2017. Athletes intending to use sports supplements are more likely to respond to a placebo. Medicine & Science in Sports & Exercise (MSSE). https://doi.org/10.1249/MSS.0000000000001297
Development and validation of the sports supplements beliefs scale [Conference paper abstract]
Hurst, P., Foad, A. and Coleman, D. 2015. Development and validation of the sports supplements beliefs scale [Conference paper abstract]. Journal of Sports Sciences. 33 (Sup1), pp. s72-s74. https://doi.org/10.1080/02640414.2015.1110330
Expectations, caffeine and pacing strategy: how positive and negative expectations can influence running performance
Hurst, P. 2014. Expectations, caffeine and pacing strategy: how positive and negative expectations can influence running performance. British Journal of Sports Medicine. 48 (A3). https://doi.org/10.1136/bjsports-2014-094245.8
Expectancy effects on competitive 5 km time-trial performance
Hurst, P. 2013. Expectancy effects on competitive 5 km time-trial performance. British Journal of Sports Medicine. 47 (17). https://doi.org/10.1136/bjsports-2013-093073.15
Reproducibility of outdoor 5 km running time-trial in a competitive environment
Hurst, P. 2013. Reproducibility of outdoor 5 km running time-trial in a competitive environment. British Journal of Sports Medicine. 47 (e4). https://doi.org/10.1136/bjsports-2013-093073.14
Development and validation of the Sports Supplements Beliefs Scale
Hurst, P., Foad, A., Coleman, D. and Beedie, C. 2016. Development and validation of the Sports Supplements Beliefs Scale. Performance Enhancement & Health. https://doi.org/10.1016/j.peh.2016.10.001
Reliability of 5-km running performance in a competitive environment
Hurst, P. and Board, L. 2016. Reliability of 5-km running performance in a competitive environment. Measurement in Physical Education and Exercise Science. https://doi.org/10.1080/1091367X.2016.1233421
Beliefs versus reality, or beliefs as reality? The placebo effect in sport and exercise
Hurst, P., Foad, A. and Beedie, C. 2016. Beliefs versus reality, or beliefs as reality? The placebo effect in sport and exercise. in: Lane, A. (ed.) Sport and Exercise Psychology London Routledge. pp. 325-344
Capitalizing on the placebo component of treatments
Beedie, C., Foad, A. and Hurst, P. 2015. Capitalizing on the placebo component of treatments. Current Sports Medicine Reports (CSMR). 14 (4), pp. 284-287. https://doi.org/10.1249/JSR.0000000000000172
Influence of acute dietary nitrate supplementation over 5 km
Hurst, P., Coleman, D. and Saunders, S. 2015. Influence of acute dietary nitrate supplementation over 5 km. British Journal of Sports Medicine: International Sports Science + Sports Medicine Conference 2015 Abstracts Newcastle Upon Tyne 8–10th September 2015. 49 (Sup. 2), pp. A6-A6. https://doi.org/10.1136/bjsports-2015-095576.17
Placebo and nocebo effects during repeat sprint performance
Hurst, P., Beedie, C., Coleman, D. and Foad, A. 2016. Placebo and nocebo effects during repeat sprint performance.
Knowledge and experience of placebo effects modifies athletes’ intentions to use sport supplements
Hurst, P., Beedie, C., Coleman, D. and Foad, A. 2016. Knowledge and experience of placebo effects modifies athletes’ intentions to use sport supplements.