The effect of liquid losses in trainings during competition period on some biochemical values of u18 male judokas ( age 15-17)

Keywords: Judo, Dehydration, weight loss, Olympic cycle, Biochemical Values


Background/Objective: The purpose of this study is to investigate the effect of liquid losses occurring in training sessions during the competition period on some biochemical values of the male Judokas competing in the U18 category. Methods:  The values of the 17 male athletes, who were included in the national team at least once, were checked in our study which compares the values of athletes before the competition and immediately after the competition. Urine Density, Urine pH, BUN, Creatine and Potassium values from the biochemistry values were measured besides the age, height and weight of the athletes participating in the study. Results: As a result of the measurements made; it was found that the kg pre-test averages of the participant athletes were 67,82 ±17,87, post-test averages were 64,88±16,89, Urine Density pre-test averages were 1.017,94 ±7,08, post-test averages were 1.025±8,48, Urine pH pre-test averages were 6,15±0,70, post-test averages were 5,82±0,50, BUN pre-test averages were 15,65±3,14, post-test averages were 24,35±3,60, Creatine pre-test averages were 0,48±0,20, post-test averages were 0,93±0,41,  K Potassium pre-test averages were 4,16±0,35,  post-test averages were 4,95 ±0,64. As a result of the statistical analysis, although there was no significant difference in urine pH pre-test and post-test values, statistically significant difference was found between pre-test and post-test values in other selected parameters (p <0,05). Conclusions: As a result; it is thought that in our country in which the adjustment of the weight class is made unconsciously and unplanned, this will lead to the health problems of the athletes in many ways, especially in the later ages. Particularly in the professional sense, the health problems, which athletes who enter weight competitions and who enter at least 10 international competitions in the Olympic sense for the Judo branch a year can experience in the later ages as a result of such exhaustion, should be well considered. The the significant differences in studies in the literature and in our work also indicate that acute and rapid dehydration causes athletes to be harmed in terms of health and leads to the loss of performance. The result of our study is that the athletes should be prompted for weight control in a planned way to prevent the adjusting weight by acute and excessive dehydration.


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Author Biographies

Nuri Muhammet Çelik, Physical Education and Sports Teaching, Institute of Educational Sciences, Sakarya University
nmcelik42@hotmail.comEsentepe Campus 54187 Serdivan, Sakarya, Turkey.
Malik Beyleroğlu, Faculty of Sport Sciences, Sakarya University Campus 54187 Serdivan, Sakarya, Turkey.
Mehmet Soyal, School of Physical Education and Sports, Sakarya University
mehmetsoyal3838@hotmail.comSakarya University Esentepe Campus 54187 Serdivan, Sakarya, Turkey.
Vahit Çiriş, Physical Education and Sports Teaching, Institute of Educational Sciences, Sakarya University
vahitciris@gmail.comSakarya University Esentepe Campus 54187 Serdivan, Sakarya, Turkey.


Erdem S, Şahin M. Sports Ethics and Problems.7th International Congress on Sport Sciences. 27-29th October 2002. Evrensel Publishing Istanbul; 2002. P.157- 55.

Mauro CG de Alencar C, Landau L, Janotta Drigo A. Judokas’ Hand Grıp Strength Study, Accordıng To Age, Weıght Class And Championship Performance. Annals of the 5th International Judo Federation World Research Symposium. September 12th, Brazil, Rio de Janeiro: 2007. P. 100-105.

Demiral Ş. An Investigation of the Effect of Judo Educational Games on the Development of Motor Skills in 7-12 Age Group Children Doing Judo (Male-Female). [PhD thesis]. Istanbul: Marmara University; 2010.

Başaran M. Wrestling Teaching and Training Principles. (4th Print), Youth Sports Academy Publications. Manisa; 1989.

Ransone J, Hughest B. Body Weight Fluctuation In Collegate Wrestlers Implications Of The National Collegiate Athletic Association Weight Certification Program. Journal of Athletic Training, 2004; 39 (2): 162-169.

Ersoy G. Nutrition for Doers of Exercise and Sports. (3. Print). Ankara: Nobel Publishing House; 2004.

Paker S. Special Nutrients Used by Athletes. ODTÜ Physical Education and Sports Sciences Health and Guidance Center. 1993-1994 Academic Year Seminars Series. Ankara; 1994.

Maglishco EW. :Swimming Even Faster.California: Mayfield Pub.; 1993.

Yıldırım Z. Health Sciences Institute Determination of physical and motoric profiles of elite female wrestlers. [PhD thesis]. İstanbul: Department of Physical Education and Sport Sciences; 2007.

Hawley J, Burke L. Peak Performance Training and Nutritional Strategies for Sport, Part 3. İstanbul; 1998.

Aydos L. Experimental Investigation of Effects of Short-term Weight Loss Before Competition on Strength and Durability in Wrestlers, [PhD thesis]. Istanbul: Marmara University Institute of Health Sciences; 1991.

Kalyon TA. Sportsman Health and Sports Injuries, 4th print. Ankara: Gata Publishing House; 1997.

Oopık V, Paasuke M, Sikko T, Timpmann S, Medijainen L. Ereline J, Smirnova T, Gapejeva E. Effect Of Rapid Weight Loss On 81 Metabolism And Isokinetic Performance Capacity. A Case Study Of Two Well Trained Wrestlers. The Journal of Sports Medicine and Physical Fitness, 1996;36(2):127-131.

Timpmann S, Öpik V, Pääsuke M, Medijainen L, Ereline J. Acute Effects Of Self-Selected Regimen Of Rapid Body Mass Loss İn Combat Sports athletes. Journal of Sports Science and Medicine, 2008;7: 210-217.

Kılıç M. Wrestlers in the Stars category (15-16 age group) Performance Effect of Short-Term Liquid Loss, [PhD thesis]. Konya: Selçuk University Health Sciences Institute, Physical Education and Sports Department; 1998.

Sten SN, Brownell KD. Patterns Of Weight Loss And Regain İn Wrestlers: Has The Tradition Changed. Medicine and Science in Sports and Exercise, 1990;22(6):762-768.

Calvo Rico B,Garcia Garcia JM, Monteiro LF, Rioja Collado N. Kinematic indicators in combat sports athletes in a pre-competitive dehydrated status. Archives Of Budoscience Of Martial Arts And Extreme Sports, 2015;11:181-188.

Langan-Evans C, Close GL, Morton JP. Gaining weight in Martial Arts. Journal of Power and Healing, 2011;33 (6): 25-39.

Alpay CB, Ersöz Y, Karagöz Ş, Oskouei MM. Pre-Competition Weight Loss in Elite Wrestlers, Comparison of Body Composition and Some Mineral Levels. International Journal of Science Culture and Sport (IntJSCS), 2015; 3(4): 338-348.

Degoutte F, Jouanel P, Begue RJ, Colombier M, Lac G, Pequignot JM, Filaire E. Food restriction, performance, biochemical, psychological, andendocrine changes in judo athletes. International journal of sports medicine, 2006; 27(01): 9-18.

Akyüz M. The Effect of Fast Weight Loss on Physical, Physiological and Biochemical Parameters in Elite Wrestlers, [PhD thesis]. Ankara: Gazi University, Institute of Health Sciences Physical Education and Sports; 2009.

Aydın A. Dehydration and Intravenous Fluid Therapy. Cerrahpaşa Medical Faculty Continuing Medical Education Activities Summer Diarrhea-Food Poisoning Symposium 8-9 June 1998. Istanbul; 1998. P. 45-61.

Brunzel NA. Fundamentals Of Urine And Body Fluid Analysis, Edition 2. Elsevier, Philadelphia; 2004.

Wilson LA. Urinalysis. Nursing Standard. 2005; 19:51–54.

Sözmen E, Akçay Y, Sezer E: Urine Analysis and Clinical Use. İzmir: Meta Printing; 2004.

Benejam R, Narayana AS. Urinalysis. The Physician’s Responsibility. Am Fam Physician. 1985; 31:103–11.

Kalaycıoğlu L, Serpek B, Nizamlıoğlu M, Başpınar N, Tiftik AM. Biochemistry, Ankara: Nobel Publishing Distribution Ltd. Co; 2000. (In Turkish)

Yılmaz B. Hormones and Reproduction Physiology, 1st Print, Ankara: Feryal Printing Press; 2000.

Altun B. Kidney Function Tests. [Internet] 2009 Apr 17 [updated 2010 Jan 1; cited 2017 Apr 8]. Available from:

Günay M, Cicioğlu İ, Kara E. Metabolic and Heat Adaptation in Exercise, Ankara: Gazi Bookstore; 2006.

Costill DL, Cote R, Fink W. Muscle Water And Electrolytes Following Varied Levels Of DehydrationIn Man. J Appl Physiol.2006;40:6-11.

Sejersted OM, Sjøgaard G. Dynamics And Consequences Of Potessium Shifts In Skeletal Muscle And Hearth During Exercise. Physiol Rev. 2000;80:1411-1481.

Kenefick RW, Hazzard MP. Thirst Sensations and AVP Responses at Rest and During Exercise-Cold Exposure. Med. Sci. Sports. Exe. 2004;36(9)1528-34.

Ebert TR, Martin DT. Influence of Hydration Status on Thermo regulation and Cycling Hill Climbing. Med Sci Sports Exerc. 2007;39(2):323-9.

Rivera AM, Rowland TW. Exercise Tolerance in a Hot and Humid Climatized Girls and Women. Int. J. Sports Med. 2007;27(12):943-950.

Noakes TD, Sharwood K. Three Independent Biological Mechanisms Cause Exercise-Associated Hyponatremia: Evidence From 2135 Weighed Competitive Athletic Performances. Proc. Natl. Acad. Sci. U.S.A. 2005.102(51):18550-18555.
How to Cite
Çelik NM, Beyleroğlu M, Soyal M, Çiriş V. The effect of liquid losses in trainings during competition period on some biochemical values of u18 male judokas ( age 15-17). Physical education of students. 2017;21(5):249-54.