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Changes in body mass and hydration status in judo athletes before and after a top-level competition: a descriptive case study      
Yazarlar
Doç. Dr. Bayram CEYLAN
Kastamonu Üniversitesi, Türkiye
Oliver Barley
Şükrü Serdar Balcı
Selçuk Üniversitesi, Türkiye
Özet
Objectives: The International Judo Federation (IJF) implemented new regulations in an attempt to regulate rapid weight loss in 2013. The body weight of the athletes cannot be more than 5% higher than the upper limits of their weight categories at the weight check for randomly selected athletes from each weight category before the competition. However, therea lack of studies demonstrating rapid weight loss and hydration status of elite judo athletes in a real match atmosphere under the current refereeing rules. Thus, this study aimed to examine the body mass and hydration changes of elite judo athletes a week before the competition, official weigh-in, and 24 hours after competition. Methods: Eight high-level male judo athletes voluntarily participated in this study. Body mass and urinary measures of hydration status were collected a week before, at the official weigh-in and 24-hour post-weigh-in. Results: The one-way repeated-measures ANOVA showed a significant main effect of time on body mass (p < 0.001). Body mass decreased by 5.4 ± 0.7 kg or 6.8% from a week before the competition to official weigh-in (p < 0.001) and increased by 3.0 ± 1.1 kg or 4.2% from official weigh-in to 24-h post-competition (p < 0.001). A significant effect of time was also found in both urine-specific gravity (USG) (p < 0.001) and urine color (UC) among the measurements (p = 0.001). Athletes’ USG values were at the highest level (USG = 1.030 ± 0.001) at the official weigh-in, while they decreased significantly at 24-hour post-competition (USG = 1.017 ± 0.007). Conclusion: The results showed that elite judo athletes resort to rapid weight loss and present dehydration despite established regulations by the IJF.
Anahtar Kelimeler
Weight gain,hypohydration,combat sports,weight loss,urine specific gravity
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı The Physician and Sportsmedicine
Dergi ISSN 0091-3847
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 05-2023
Cilt No 51
Sayı 3
Sayfalar 228 / 233
Doi Numarası 10.1080/00913847.2022.2026200
Makale Linki http://dx.doi.org/10.1080/00913847.2022.2026200