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Performance enhancement with supplements: incongruence between rationale and practice
BACKGROUND: Athletes are expected to consider multiple factors when making informed decision about nutritional supplement use. Besides rules, regulations and potential health hazards, the efficacy of different nutritional supplements in performance enhancement is a key issue. The aim of this paper w...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2007
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2214727/ https://www.ncbi.nlm.nih.gov/pubmed/17997853 http://dx.doi.org/10.1186/1550-2783-4-19 |
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author | Petróczi, Andrea Naughton, Declan P Mazanov, Jason Holloway, Allison Bingham, Jerry |
author_facet | Petróczi, Andrea Naughton, Declan P Mazanov, Jason Holloway, Allison Bingham, Jerry |
author_sort | Petróczi, Andrea |
collection | PubMed |
description | BACKGROUND: Athletes are expected to consider multiple factors when making informed decision about nutritional supplement use. Besides rules, regulations and potential health hazards, the efficacy of different nutritional supplements in performance enhancement is a key issue. The aim of this paper was to find evidence for informed decision making by investigating the relationship between specific performance-related reasons for supplement use and the reported use of nutritional supplements. METHODS: The 'UK Sport 2005 Drug Free Survey' data (n = 874) were re-analysed using association [χ(2)] and 'strength of association' tests [ϕ] to show the proportion of informed choices and to unveil incongruencies between self-reported supplement use and the underlying motives. RESULTS: Participants (n = 520) reported supplement use in the pattern of: vitamin C (70.4%), creatine (36.1%), whey protein (30.6%), iron (29.8%), caffeine (23.8%), and ginseng (8.3%) for the following reasons: strength maintenance (38.1%), doctors' advice (24.2%), enhancing endurance (20.0%), ability to train longer (13.3%), and provided by the governing body (3.8%). Of thirty possible associations between the above supplements and reasons, 11 were predictable from literature precedents and only 8 were evidenced and these were not strong (ϕ < .7). The best associations were for the ability to train longer with creatine (reported by 73.9%, χ(2 )= 49.14, p < .001; ϕ = .307, p < .001), and maintaining strength with creatine (reported by 62.6%, χ(2 )= 97.08, p < .001; ϕ = .432, p < .001) and whey protein (reported by 56.1%, χ(2 )= 97.82, p < .001; ϕ = .434, p < .001). CONCLUSION: This study provided a platform for assessing congruence between athletes' reasons for supplement use and their actual use. These results suggest that a lack of understanding exists in supplement use. There is an urgent need to provide accurate information which will help athletes make informed choices about the use of supplements. |
format | Text |
id | pubmed-2214727 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2007 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-22147272008-01-26 Performance enhancement with supplements: incongruence between rationale and practice Petróczi, Andrea Naughton, Declan P Mazanov, Jason Holloway, Allison Bingham, Jerry J Int Soc Sports Nutr Research Article BACKGROUND: Athletes are expected to consider multiple factors when making informed decision about nutritional supplement use. Besides rules, regulations and potential health hazards, the efficacy of different nutritional supplements in performance enhancement is a key issue. The aim of this paper was to find evidence for informed decision making by investigating the relationship between specific performance-related reasons for supplement use and the reported use of nutritional supplements. METHODS: The 'UK Sport 2005 Drug Free Survey' data (n = 874) were re-analysed using association [χ(2)] and 'strength of association' tests [ϕ] to show the proportion of informed choices and to unveil incongruencies between self-reported supplement use and the underlying motives. RESULTS: Participants (n = 520) reported supplement use in the pattern of: vitamin C (70.4%), creatine (36.1%), whey protein (30.6%), iron (29.8%), caffeine (23.8%), and ginseng (8.3%) for the following reasons: strength maintenance (38.1%), doctors' advice (24.2%), enhancing endurance (20.0%), ability to train longer (13.3%), and provided by the governing body (3.8%). Of thirty possible associations between the above supplements and reasons, 11 were predictable from literature precedents and only 8 were evidenced and these were not strong (ϕ < .7). The best associations were for the ability to train longer with creatine (reported by 73.9%, χ(2 )= 49.14, p < .001; ϕ = .307, p < .001), and maintaining strength with creatine (reported by 62.6%, χ(2 )= 97.08, p < .001; ϕ = .432, p < .001) and whey protein (reported by 56.1%, χ(2 )= 97.82, p < .001; ϕ = .434, p < .001). CONCLUSION: This study provided a platform for assessing congruence between athletes' reasons for supplement use and their actual use. These results suggest that a lack of understanding exists in supplement use. There is an urgent need to provide accurate information which will help athletes make informed choices about the use of supplements. BioMed Central 2007-11-12 /pmc/articles/PMC2214727/ /pubmed/17997853 http://dx.doi.org/10.1186/1550-2783-4-19 Text en Copyright © 2007 Petróczi et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Petróczi, Andrea Naughton, Declan P Mazanov, Jason Holloway, Allison Bingham, Jerry Performance enhancement with supplements: incongruence between rationale and practice |
title | Performance enhancement with supplements: incongruence between rationale and practice |
title_full | Performance enhancement with supplements: incongruence between rationale and practice |
title_fullStr | Performance enhancement with supplements: incongruence between rationale and practice |
title_full_unstemmed | Performance enhancement with supplements: incongruence between rationale and practice |
title_short | Performance enhancement with supplements: incongruence between rationale and practice |
title_sort | performance enhancement with supplements: incongruence between rationale and practice |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2214727/ https://www.ncbi.nlm.nih.gov/pubmed/17997853 http://dx.doi.org/10.1186/1550-2783-4-19 |
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