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Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects
The use of vitamin and mineral supplements as ergogenic aids is widespread amongst both athletes and the general population. Although there appear to be at least some theoretical reasons to suggest that supplementation may enhance athletic performance, there is limited scientific justification for t...
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| Format: | Thesis |
| Language: | English |
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Division of Physiological Sciences
2024
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| _version_ | 1867613222130941952 |
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| access_status_str | Open Access |
| author | Weight, Lindsay M |
| author2 | Dr. Tim Noakes |
| author_browse | Dr. Tim Noakes Weight, Lindsay M |
| author_facet | Dr. Tim Noakes Weight, Lindsay M |
| author_sort | Weight, Lindsay M |
| collection | Thesis |
| description | The use of vitamin and mineral supplements as ergogenic aids is widespread amongst both athletes and the general population. Although there appear to be at least some theoretical reasons to suggest that supplementation may enhance athletic performance, there is limited scientific justification for this belief. There is also no evidence that the vitamin requirements of heavily training athletes eating a normal diet are ,_ increased. Furthermore, the possiblity that roxic side-effects may develop when high doses of vitamins and minerals are consumed, raises the question of the safety of this practice. This study was designed to answer the following questions:- (i) Does a commercially-available multi-vitamin and mineral supplement enhance the athletic performance of a group of trained marathon runners? ii) Do athletes require additional vitamin and minerals in view of their increased energy expenditure? (iii) Are there toxic side-effects associated with daily vitamin and mineral supplementation in these runners? A nine-month cross-over, placebo-controlled study design was employed. The subjects were 30 competitive male athletes who had been running for at least three years and who were training more than 70 km per week. They were randomly assigned to two groups, so that 15 received placebo |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/40582 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:42.829Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Division of Physiological Sciences |
| publisherStr | Division of Physiological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/40582 Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects Weight, Lindsay M Dr. Tim Noakes Physiology The use of vitamin and mineral supplements as ergogenic aids is widespread amongst both athletes and the general population. Although there appear to be at least some theoretical reasons to suggest that supplementation may enhance athletic performance, there is limited scientific justification for this belief. There is also no evidence that the vitamin requirements of heavily training athletes eating a normal diet are ,_ increased. Furthermore, the possiblity that roxic side-effects may develop when high doses of vitamins and minerals are consumed, raises the question of the safety of this practice. This study was designed to answer the following questions:- (i) Does a commercially-available multi-vitamin and mineral supplement enhance the athletic performance of a group of trained marathon runners? ii) Do athletes require additional vitamin and minerals in view of their increased energy expenditure? (iii) Are there toxic side-effects associated with daily vitamin and mineral supplementation in these runners? A nine-month cross-over, placebo-controlled study design was employed. The subjects were 30 competitive male athletes who had been running for at least three years and who were training more than 70 km per week. They were randomly assigned to two groups, so that 15 received placebo 2024-10-17T12:28:13Z 2024-10-17T12:28:13Z 1986 2024-08-20T12:59:53Z Thesis / Dissertation Masters Masters http://hdl.handle.net/11427/40582 eng application/pdf Division of Physiological Sciences Faculty of Health Sciences |
| spellingShingle | Physiology Weight, Lindsay M Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| thesis_degree_str | Master's |
| title | Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| title_full | Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| title_fullStr | Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| title_full_unstemmed | Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| title_short | Vitamin and mineral supplementation in athletes, with special reference to the ergogenic effects and possible toxic side-effects |
| title_sort | vitamin and mineral supplementation in athletes with special reference to the ergogenic effects and possible toxic side effects |
| topic | Physiology |
| url | http://hdl.handle.net/11427/40582 |
| work_keys_str_mv | AT weightlindsaym vitaminandmineralsupplementationinathleteswithspecialreferencetotheergogeniceffectsandpossibletoxicsideeffects |