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Home / Equine Research Bank / J Exerc Nutrition Biochem / Weight loss practice, nutritional status, bone health, and i...
Journal of exercise nutrition & biochemistry2018; 22(3); 27-34; doi: 10.20463/jenb.2018.0021

Weight loss practice, nutritional status, bone health, and injury history: A profile of professional jockeys in Korea.

Abstract: The purpose of this study was to investigate the impact of weight loss practices on nutritional status, bone health, and injury history among Korean professional jockeys. Methods: Forty-three male jockeys completed a questionnaire to assess their weight loss practices. Of these, 10 jockeys were selected for in-depth assessment of their nutritional status, bone health, and injury history. Results: The questionnaires revealed that 81.4% of jockeys lost weight every week mainly by dieting and/or exercising. None of the jockeys consumed enough food during the weight loss period. Two jockeys were diagnosed with osteopenia and one was diagnosed with osteoporosis. Only history of fracture showed a significant correlation with low bone mineral density. All jockeys had more than one injury experience throughout their career. Fracture was the most common type of injury, occurring during practice and/or competition and caused mainly by difficulties in handling the horses. Conclusions: Professional jockeys in Korea use extreme weight loss methods. Their repeated periods of poor nutritional intake may result in seriously low bone mineral density, which may aggravate injuries sustained during horse races. Implementation of balanced dietary programs and delivery of health education on weight management are urgently required.
©2018 The Korean Society for Exercise Nutrition.
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Publication Date: 2018-10-22 PubMed ID: 30343556PubMed Central: PMC6199486DOI: 10.20463/jenb.2018.0021Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research study explores the effects of weight loss practices on nutritional health, bone condition, and injury history of professional jockeys in Korea. The main findings suggest weight loss methods used by these jockeys often lead to poor nutrition, lower bone mineral density, and increased risk of injury.

Methodology

  • The research process began with a survey questionnaire completed by 43 professional male jockeys to evaluate their weight management practices. This questionnaire provided insights into the frequency and methods of weight loss used in this profession.
  • From this group, 10 jockeys were randomly selected for an in-depth assessment of their nutritional status, bone health, and injury history.

Results

  • The questionnaire results showed a significant majority (81.4%) of the jockeys losing weight on a weekly basis chiefly through dieting and/or exercising.
  • It was found that none of the jockeys were consuming sufficient food during their weight loss periods.
  • Two jockeys were diagnosed with osteopenia and one with osteoporosis, conditions that are linked to malnutrition and imply high risk of fractures.
  • Critical finding was that all jockeys had experienced more than one injury in their career, with fractures being the most common form of injury, which correlates with the low bone mineral density.

Conclusions

  • The study concluded that professional jockeys in Korea often engage in extreme weight loss methods, leading to unhealthy dietary intake and negatively impacting their bone health.
  • The unhealthy weight loss practice and the resulting low nutritional state significantly lowers bone mineral density, causing higher risk of fractures and other injuries during horse races and practices.
  • The researchers insist on urgent implementation of balanced dietary programs and health education focused on healthy weight management for this group.

Cite This Article

APA
Jeon S, Cho K, Ok G, Lee S, Park H. (2018). Weight loss practice, nutritional status, bone health, and injury history: A profile of professional jockeys in Korea. J Exerc Nutrition Biochem, 22(3), 27-34. https://doi.org/10.20463/jenb.2018.0021

Publication

Journal of exercise nutrition & biochemistry
ISSN: 2233-6834
NlmUniqueID: 101572566
Country: Korea (South)
Language: English
Volume: 22
Issue: 3
Pages: 27-34

Researcher Affiliations

Jeon, Soeun
    Cho, Kyungho
      Ok, Gina
        Lee, Sukho
          Park, Hyon

            References

            This article includes 48 references
            1. Dolan E, O'Connor H, McGoldrick A, O'Loughlin G, Lyons D, Warrington G. Nutritional, lifestyle, and weight control practices of professional jockeys.. J Sports Sci 2011 May;29(8):791-9.
              doi: 10.1080/02640414.2011.560173pubmed: 21506039google scholar: lookup
            2. Leydon MA, Wall C. New Zealand jockeys' dietary habits and their potential impact on health.. Int J Sport Nutr Exerc Metab 2002 Jun;12(2):220-37.
              doi: 10.1123/ijsnem.12.2.220pubmed: 12187620google scholar: lookup
            3. Moore JM, Timperio AF, Crawford DA, Burns CM, Cameron-Smith D. Weight management and weight loss strategies of professional jockeys.. Int J Sport Nutr Exerc Metab 2002 Mar;12(1):1-13.
              doi: 10.1123/ijsnem.12.1.1pubmed: 11993617google scholar: lookup
            4. O'Reilly J, Cheng HL, Poon ET. New insights in professional horse racing; "in-race" heart rate data, elevated fracture risk, hydration, nutritional and lifestyle analysis of elite professional jockeys.. J Sports Sci 2017 Mar;35(5):441-448.
              doi: 10.1080/02640414.2016.1171890pubmed: 27070776google scholar: lookup
            5. Poon ET, O'Reilly J, Sheridan S, Cai MM, Wong SH. Markers of Bone Health, Bone-Specific Physical Activities, Nutritional Intake, and Quality of Life of Professional Jockeys in Hong Kong.. Int J Sport Nutr Exerc Metab 2018 Jul 1;28(4):440-446.
              pubmed: 28556673doi: 10.1123/ijsnem.2016-0176google scholar: lookup
            6. Wilson G, Hawken MB, Poole I, Sparks A, Bennett S, Drust B, Morton J, Close GL. Rapid weight-loss impairs simulated riding performance and strength in jockeys: implications for making-weight.. J Sports Sci 2014;32(4):383-91.
              doi: 10.1080/02640414.2013.825732pubmed: 24015787google scholar: lookup
            7. Cullen S, Dolan E, O Brien K, McGoldrick A, Warrington G. Lack of Effect of Typical Rapid-Weight-Loss Practices on Balance and Anaerobic Performance in Apprentice Jockeys.. Int J Sports Physiol Perform 2015 Nov;10(8):972-7.
              doi: 10.1123/ijspp.2014-0506pubmed: 25756312google scholar: lookup
            8. Dede AD, Lyritis GP, Tournis S. Bone disease in anorexia nervosa.. Hormones (Athens) 2014 Jan-Mar;13(1):38-56.
              doi: 10.1007/bf03401319pubmed: 24722126google scholar: lookup
            9. Franchini E, Brito CJ, Artioli GG. Weight loss in combat sports: physiological, psychological and performance effects.. J Int Soc Sports Nutr 2012 Dec 13;9(1):52.
              doi: 10.1186/1550-2783-9-52pmc: PMC3607973pubmed: 23237303google scholar: lookup
            10. Joy E, Kussman A, Nattiv A. 2016 update on eating disorders in athletes: A comprehensive narrative review with a focus on clinical assessment and management.. Br J Sports Med 2016 Feb;50(3):154-62.
              doi: 10.1136/bjsports-2015-095735pubmed: 26782763google scholar: lookup
            11. Khodaee M, Olewinski L, Shadgan B, Kiningham RR. Rapid Weight Loss in Sports with Weight Classes.. Curr Sports Med Rep 2015 Nov-Dec;14(6):435-41.
              doi: 10.1249/jsr.0000000000000206pubmed: 26561763google scholar: lookup
            12. Meczekalski B, Podfigurna-Stopa A, Katulski K. Long-term consequences of anorexia nervosa.. Maturitas 2013 Jul;75(3):215-20.
              doi: 10.1016/j.maturitas.2013.04.014pubmed: 23706279google scholar: lookup
            13. Rankin JW. Weight loss and gain in athletes.. Curr Sports Med Rep 2002 Aug;1(4):208-13.
              doi: 10.1249/00149619-200208000-00004pubmed: 12831697google scholar: lookup
            14. Rodriguez NR, Di Marco NM, Langley S. American College of Sports Medicine position stand. Nutrition and athletic performance.. Med Sci Sports Exerc 2009 Mar;41(3):709-31.
              pubmed: 19225360doi: 10.1249/mss.0b013e31890eb86google scholar: lookup
            15. Sundgot-Borgen J, Meyer NL, Lohman TG, Ackland TR, Maughan RJ, Stewart AD, Müller W. How to minimise the health risks to athletes who compete in weight-sensitive sports review and position statement on behalf of the Ad Hoc Research Working Group on Body Composition, Health and Performance, under the auspices of the IOC Medical Commission.. Br J Sports Med 2013 Nov;47(16):1012-22.
              doi: 10.1136/bjsports-2013-092966pubmed: 24115480google scholar: lookup
            16. Tarnopolsky MA, Cipriano N, Woodcroft C, Pulkkinen WJ, Robinson DC, Henderson JM, MacDougall JD. Effects of rapid weight loss and wrestling on muscle glycogen concentration.. Clin J Sport Med 1996 Apr;6(2):78-84.
              doi: 10.1097/00042752-199604000-00003pubmed: 8673580google scholar: lookup
            17. Turocy PS, DePalma BF, Horswill CA, Laquale KM, Martin TJ, Perry AC, Somova MJ, Utter AC. National Athletic Trainers' Association position statement: safe weight loss and maintenance practices in sport and exercise.. J Athl Train 2011 May-Jun;46(3):322-36.
              doi: 10.4085/1062-6050-46.3.322pmc: PMC3419563pubmed: 21669104google scholar: lookup
            18. Popkin BM, D'Anci KE, Rosenberg IH. Water, hydration, and health.. Nutr Rev 2010 Aug;68(8):439-58.
              pmc: PMC2908954pubmed: 20646222doi: 10.1111/j.1753-4887.2010.00304.xgoogle scholar: lookup
            19. Ritz P, Berrut G. The importance of good hydration for day-to-day health.. Nutr Rev 2005 Jun;63(6 Pt 2):S6-13.
              pubmed: 16028567doi: 10.1111/j.1753-4887.2005.tb00155.xgoogle scholar: lookup
            20. Sawka MN, Burke LM, Eichner ER, Maughan RJ, Montain SJ, Stachenfeld NS. American College of Sports Medicine position stand. Exercise and fluid replacement.. Med Sci Sports Exerc 2007 Feb;39(2):377-90.
              pubmed: 17277604doi: 10.1249/mss.0b013e31802ca597google scholar: lookup
            21. Shirreffs SM. The importance of good hydration for work and exercise performance.. Nutr Rev 2005 Jun;63(6 Pt 2):S14-21.
              doi: 10.1111/j.1753-4887.2005.tb00149.xpubmed: 16028568google scholar: lookup
            22. Conde FA, Aronson WJ. Risk factors for male osteoporosis.. Urol Oncol 2003 Sep-Oct;21(5):380-3.
              pubmed: 14670549doi: 10.1016/s1078-1439(03)00109-1google scholar: lookup
            23. Drabkin A, Rothman MS, Wassenaar E, Mascolo M, Mehler PS. Assessment and clinical management of bone disease in adults with eating disorders: a review.. J Eat Disord 2017;5:42.
              doi: 10.1186/s40337-017-0172-0pmc: PMC5713040pubmed: 29214023google scholar: lookup
            24. Goolsby MA, Boniquit N. Bone Health in Athletes.. Sports Health 2017 Mar Apr;9(2):108-117.
              pmc: PMC5349390pubmed: 27821574doi: 10.1177/1941738116677732google scholar: lookup
            25. Ross AC, Manson JE, Abrams SA, Aloia JF, Brannon PM, Clinton SK, Durazo-Arvizu RA, Gallagher JC, Gallo RL, Jones G, Kovacs CS, Mayne ST, Rosen CJ, Shapses SA. The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know.. J Clin Endocrinol Metab 2011 Jan;96(1):53-8.
              doi: 10.1210/jc.2010-2704pmc: PMC3046611pubmed: 21118827google scholar: lookup
            26. Dolan E, Crabtree N, McGoldrick A, Ashley DT, McCaffrey N, Warrington GD. Weight regulation and bone mass: a comparison between professional jockeys, elite amateur boxers, and age, gender and BMI matched controls.. J Bone Miner Metab 2012 Mar;30(2):164-70.
              doi: 10.1007/s00774-011-0297-1pubmed: 21773703google scholar: lookup
            27. Waldron-Lynch F, Murray BF, Brady JJ, McKenna MJ, McGoldrick A, Warrington G, O'Loughlin G, Barragry JM. High bone turnover in Irish professional jockeys.. Osteoporos Int 2010 Mar;21(3):521-5.
              doi: 10.1007/s00198-009-0887-0pubmed: 19271097google scholar: lookup
            28. Warrington G, Dolan E, McGoldrick A, McEvoy J, Macmanus C, Griffin M, Lyons D. Chronic weight control impacts on physiological function and bone health in elite jockeys.. J Sports Sci 2009 Apr;27(6):543-50.
              doi: 10.1080/02640410802702863pubmed: 19337879google scholar: lookup
            29. Caulfield MJ, Karageorghis CI. Psychological effects of rapid weight loss and attitudes towards eating among professional jockeys.. J Sports Sci 2008 Jul;26(9):877-83.
              doi: 10.1080/02640410701837349pubmed: 18569553google scholar: lookup
            30. Dolan E, Cullen S, McGoldrick A, Warrington GD. The impact of making weight on physiological and cognitive processes in elite jockeys.. Int J Sport Nutr Exerc Metab 2013 Aug;23(4):399-408.
              doi: 10.1123/ijsnem.23.4.399pubmed: 23436623google scholar: lookup
            31. Wilson G, Drust B, Morton JP, Close GL. Weight-making strategies in professional jockeys: implications for physical and mental health and well-being.. Sports Med 2014 Jun;44(6):785-96.
              doi: 10.1007/s40279-014-0169-7pubmed: 24682950google scholar: lookup
            32. Balendra G, Turner M, McCrory P. Career-ending injuries to professional jockeys in British horse racing (1991-2005).. Br J Sports Med 2008 Jan;42(1):22-4.
              pubmed: 17510227doi: 10.1136/bjsm.2007.038950google scholar: lookup
            33. Hitchens PL, Blizzard CL, Jones G, Day LM, Fell J. The incidence of race-day jockey falls in Australia, 2002-2006.. Med J Aust 2009 Jan 19;190(2):83-6.
              pubmed: 19236295doi: 10.5694/j.1326-5377.2009.tb02284.xgoogle scholar: lookup
            34. Hitchens PL, Hill AE, Stover SM. Jockey Falls, Injuries, and Fatalities Associated With Thoroughbred and Quarter Horse Racing in California, 2007-2011.. Orthop J Sports Med 2013 Jan-Jun;1(1):2325967113492625.
              doi: 10.1177/2325967113492625pmc: PMC4555501pubmed: 26535231google scholar: lookup
            35. O'Connor S, Warrington G, McGoldrick A, Cullen S. Epidemiology of Injury Due to Race-Day Jockey Falls in Professional Flat and Jump Horse Racing in Ireland, 2011-2015.. J Athl Train 2017 Dec;52(12):1140-1146.
              doi: 10.4085/1062-6050-52.12.17pmc: PMC5759697pubmed: 29154693google scholar: lookup
            36. Waller AE, Daniels JL, Weaver NL, Robinson P. Jockey injuries in the United States.. JAMA 2000 Mar 8;283(10):1326-8.
              doi: 10.1001/jama.283.10.1326pubmed: 10714733google scholar: lookup
            37. Wylie CE, McManus P, McDonald C, Jorgensen S, McGreevy P. Thoroughbred fatality and associated jockey falls and injuries in races in New South Wales and the Australian Capital Territory, Australia: 2009-2014.. Vet J 2017 Sep;227:1-7.
              doi: 10.1016/j.tvjl.2017.06.008pubmed: 29031324google scholar: lookup
            38. Brito CJ, Roas A FC, Brito I SS, Marins J CB, Córdova C, Franchini E. Methods of body mass reduction by combat sport athletes.. Int J Sport Nutr Exerc Metab 2012 Apr;22(2):89-97.
              doi: 10.1123/ijsnem.22.2.89pubmed: 22349031google scholar: lookup
            39. Grainge MJ, Coupland CA, Cliffe SJ, Chilvers CE, Hosking DJ. Cigarette smoking, alcohol and caffeine consumption, and bone mineral density in postmenopausal women. The Nottingham EPIC Study Group.. Osteoporos Int 1998;8(4):355-63.
              doi: 10.1007/s001980050075pubmed: 10024906google scholar: lookup
            40. Cohen J. Statistical Power Analysis for the Behavioral Sciences. New York, NY: Routledge Academic; 1969.
              doi: 10.4324/9780203771587google scholar: lookup
            41. Cotugna N, Snider OS, Windish J. Nutrition assessment of horse-racing athletes.. J Community Health 2011 Apr;36(2):261-4.
              doi: 10.1007/s10900-010-9306-xpubmed: 20803166google scholar: lookup
            42. Dolan E, McGoldrick A, Davenport C, Kelleher G, Byrne B, Tormey W, Smith D, Warrington GD. An altered hormonal profile and elevated rate of bone loss are associated with low bone mass in professional horse-racing jockeys.. J Bone Miner Metab 2012 Sep;30(5):534-42.
              doi: 10.1007/s00774-012-0354-4pubmed: 22491874google scholar: lookup
            43. Javaras KN, Pope HG, Lalonde JK, Roberts JL, Nillni YI, Laird NM, Bulik CM, Crow SJ, McElroy SL, Walsh BT, Tsuang MT, Rosenthal NR, Hudson JI. Co-occurrence of binge eating disorder with psychiatric and medical disorders.. J Clin Psychiatry 2008 Feb;69(2):266-73.
              doi: 10.4088/jcp.v69n0213pubmed: 18348600google scholar: lookup
            44. Meng X, D'Arcy C. Comorbidity between lifetime eating problems and mood and anxiety disorders: results from the Canadian Community Health Survey of Mental Health and Well-being.. Eur Eat Disord Rev 2015 Mar;23(2):156-62.
              doi: 10.1002/erv.2347pubmed: 25604862google scholar: lookup
            45. Bonci CM, Bonci LJ, Granger LR, Johnson CL, Malina RM, Milne LW, Ryan RR, Vanderbunt EM. National athletic trainers' association position statement: preventing, detecting, and managing disordered eating in athletes.. J Athl Train 2008 Jan-Mar;43(1):80-108.
              doi: 10.4085/1062-6050-43.1.80pmc: PMC2231403pubmed: 18335017google scholar: lookup
            46. Wilson G, Lucas D, Hambly C, Speakman JR, Morton JP, Close GL. Energy expenditure in professional flat jockeys using doubly labelled water during the racing season: Implications for body weight management.. Eur J Sport Sci 2018 Mar;18(2):235-242.
              pubmed: 29215970doi: 10.1080/17461391.2017.1406996google scholar: lookup
            47. Warming L, Hassager C, Christiansen C. Changes in bone mineral density with age in men and women: a longitudinal study.. Osteoporos Int 2002;13(2):105-12.
              doi: 10.1007/s001980200001pubmed: 11905520google scholar: lookup
            48. Yim VW, Yeung JH, Mak PS, Graham CA, Lai PB, Rainer TH. Five year analysis of Jockey Club horse-related injuries presenting to a trauma centre in Hong Kong.. Injury 2007 Jan;38(1):98-103.
              doi: 10.1016/j.injury.2006.08.026pubmed: 17049524google scholar: lookup

            Citations

            This article has been cited 4 times.
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              doi: 10.3389/fspor.2022.918716pubmed: 35784801google scholar: lookup
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              doi: 10.1186/s40798-022-00414-1pubmed: 35157162google scholar: lookup
            3. Ryan K, Brodine J. Weight-Making Practices Among Jockeys: An Update and Review of the Emergent Scientific Literature. Open Access J Sports Med 2021;12:87-98.
              doi: 10.2147/OAJSM.S235143pubmed: 34267562google scholar: lookup
            4. Morrice-West AV, Thomas M, Wong ASM, Flash M, Whitton RC, Hitchens PL. Linkage of jockey falls and injuries with racehorse injuries and fatalities in Thoroughbred flat racing in Victoria, Australia. Front Vet Sci 2024;11:1481016.
              doi: 10.3389/fvets.2024.1481016pubmed: 40018508google scholar: lookup
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