The Use of Nutritional Supplements Among Master Athletes

Abstract

We assessed the use of nutritional supplements among master athletes focusing on their source of information and source of supply of nutritional supplements. 1560 standardized, anonymous questionnaires were distributed among participants of the World Masters Athletics Championships Indoors 2004. These questions were related to biometric parameters, social indicators, training parameters, illicit drugs, and nutritional supplements. χ²-tests were computed to reveal meaningful associations between basic information (age, gender, family status, children, education, country of origin, disciplines, training years, smoking, and the use of alcohol, illicit drugs, and doping) and the intake of nutritional supplements. Descriptive information on the history of their use of nutritional supplements was also provided. 60.5 % of all participants reported the actual use of nutritional supplements. We found no significant differences between nutritional supplement users and non-users with regard to basic information. The substances predominantly used were vitamins (35.4 %) and minerals (29.9 %). In contrast to elite athletes who use nutritional supplements to increase their athletic performance, master athletes use these substances predominantly for health reasons and, thus, have a closer contact to the health care system. Physicians are their preferred source of information about nutritional supplements. More than half of the interviewed athletes obtain their nutritional supplements from pharmacies or physicians. The results of this study indicate that nutritional supplement users in master athletics show no specific user profile. Since it is not rare for nutritional supplements to contain trace contaminations of anabolic androgenic steroids or pro-hormones, physicians should also inform master competitive athletes of the dangers of testing positive for doping substances due to their intake of nutritional supplements and advise them accordingly.

Nutritional supplements - prevalence - senior athletics - health care system - substance abuse

References

• 1 Ayotte C, Levesque J F, Cleroux M, Lajeunesse A, Goudreault D, Fakirian A. Sports nutritional supplements: quality of doping controls.  Can J Appl Physiol. 2001;  26 (Suppl) S120-S129
• 2 Balsom P, Harridge S, Soderlund K, Sjodin B, Ekblom B. Creatine supplementation per se does not enhance exercise endurance performance.  Acta Physiol Scand. 1993;  149 521-523
• 3 Baylis A, Cameron-Smith D, Burke L M. Inadvertent doping through supplement use by athletes: assessment and management of the risk in Australia.  Int J Sport Nutr Exerc Metab. 2001;  11 365-383
• 4 Catlin D H, Leder B Z, Ahrens B, Starcevic B, Hatton C K, Green G A, Finkelstein J S. Trace contaminations of over-the-counter androstenedione and positive urine test result for nandrolon metabolite.  JAMA. 2000;  284 2618-2621
• 5 Congeni J, Miller S. Supplements and drugs used to enhance athletic performance.  Pediatr Clin North Am. 2002;  49 435-461
• 6 Geyer H, Mareck-Engelke U, Reinhart U, Thevis M, Schänzer W. Positive Dopingfälle mit Norandrosteron durch verunreinigte Nahrungsergänzungsmittel.  Dtsch Z Sportmed. 2000;  51 378-382
• 7 Geyer H, Parr M K, Reinhart U, Schrader Y, Mareck U, Schänzer W. Analysis of “non-hormonal” nutritional supplements prohormones. Schänzer W, Geyer H, Gotzmann A, Mareck-Engelke U Recent Advances in Doping Analysis (9). Köln; Sport und Buch Strauß 2001: 63-72
• 8 Geyer H, Parr M K, Reinhart U, Schrader Y, Mareck U, Schänzer W. Analysis of non-hormonal nutritional supplements for anabolic steroids - Results of an international study.  Int J Sports Med. 2004;  25 124-129
• 9 Gilliam J, Hohzorn C, Martin D, Trimble M H. Effect of oral creatine supplementation on isokinetic torque production.  Med Sci Sports Exerc. 2000;  32 993-996
• 10 Gmeiner G, Hofer H. Untersuchung auf mögliche Verunreinigungen von Nahrungsergänzungsmitteln mit anabolen Steroiden. Forschungsberichte des Österreichischen Bundesministeriums für soziale Sicherheit und Generationen. Seibersdorf; ARC Seibersdorf research GmbH 2002: 2
• 11 Green G A, Catlin D H, Starcevic B. Analysis of over-the-counter dietary supplements.  Clin J Sports Med. 2001;  11 254-259
• 12 Greenhaff P, Casey A, Short A, Harris R, Soderlund K, Hultman E. Influence of oral creatine supplementation on muscle torque during repeat bouts of maximal voluntary exercise in man.  Clin Sci Lond. 1993;  84 65-71
• 13 Gruber A J, Pope Jr H G. Psychiatric and medical effects of anabolic-androgenic steroid use in women.  Psychother Psychosom. 2000;  69 19-26
• 14 Kanayama G, Gruber A J, Pope Jr H G, Borowiecki J J, Hudson J I. Over-the-counter drug use in gymnasiums: an underrecognized substance abuse problem?.  Psychother Psychosom. 2001;  70 137-140
• 15 Kirksey K, Warren B, Stone M. The effects of six weeks of creatine monohydrate supplementation in male and female track athletes.  Med Sci Sports Exerc. 1997;  29 (Suppl) S145
• 16 Kreider R, Ferreira M, Wilson M, Grindstaff P, Plisk S, Reinardy J, Cantler E, Almada A L. Effects of creatine supplementation on body composition, strength, and sprint performance.  Med Sci Sports Exerc. 1998;  30 73-82
• 17 Millman R B, Ross E J. Steroid and nutritional supplement use in professional athletes.  Am J Addict. 2003;  12 (Suppl) S48-S52
• 18 Pope Jr H G, Phillips K A, Olivardia R. The Adonis Complex: The Secret Crisis of Male Body Obsession. New York; Free Press 2000
• 19 Pritchard N, Kaira P. Renal dysfunction accompanying oral creatine supplementations.  Lancet. 1998;  351 1252-1253
• 20 Slater G, Tan B, The K C. Dietary supplementation practices of Singaporean athletes.  Int J Sport Nutr Exerc Metab. 2003;  13 320-332
• 21 Striegel H, Simon P, Frisch S, Roecker K, Dietz K, Dickhuth H H, Ulrich R. Anabolic ergogenic substance users in fitness-sports: a distinct group supported by the health care system.  Drug Alcohol Depend. 2005;  74 accepted
• 22 Sundgot-Borgen J, Berglund B, Torstveit M K. Nutritional supplements in Norwegian elite athletes - impact of international ranking and advisors.  Scand J Med Sci Sports. 2003;  13 138-144
• 23 Vandenberghe K, Goris M, VanHecke P, VanLeemputte M, Vandgerven L, Hespel P. Long-term creatine intake is beneficial to muscle performance during resistance training.  J Appl Physiol. 1997;  83 2055-2063
• 24 World Anti-Doping Agency (WADA) .The 2004 Prohibited List International Standard. www.wada-ama.org . Montreal; 2004
• 25 World Anti-Doping Agency (WADA) .World Anti-Doping Code. www.wada-ama.org . Montreal; 2003