Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Petróczi, Andrea, Naughton, Declan P, Mazanov, Jason, Holloway, Allison, Bingham, Jerry
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2007
Materias:
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
_version_ 1782148954374275072
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
work_keys_str_mv AT petrocziandrea performanceenhancementwithsupplementsincongruencebetweenrationaleandpractice
AT naughtondeclanp performanceenhancementwithsupplementsincongruencebetweenrationaleandpractice
AT mazanovjason performanceenhancementwithsupplementsincongruencebetweenrationaleandpractice
AT hollowayallison performanceenhancementwithsupplementsincongruencebetweenrationaleandpractice
AT binghamjerry performanceenhancementwithsupplementsincongruencebetweenrationaleandpractice