| Hydration Status in Adolescent Judo Athletes Before and After Training in the Heat. | |
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MedLine Citation:
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PMID: 21941009 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Adolescent judo athletes that train in tropical climates may be in a persistent state of dehydration because they frequently restrict fluids during daily training sessions to maintain or reduce their body weight and are not given enough opportunities to drink. PURPOSE: Determine the body hydration status of adolescent judo athletes before (PRE), immediately after (POST), and 24 hours after (24H) a training session and document sweat Na+ loss and symptoms of dehydration. METHODS: Body mass and urine color and specific gravity (USG) were measured PRE, POST, and 24H after a training session in a high heat stress environment (29.5 ± 1.0°C; 77.7 ± 6.1% RH) in 24 adolescent athletes. Sweat sodium loss was also determined. A comparison was made between mid pubertal (MP) and late pubertal (LP) subjects. RESULTS: The majority of the subjects started training with a significant level of dehydration. During the training session, MP subjects lost 1.3 ± 0.8% of their pre-training body mass while LP subjects lost 1.9 ± 0.5% (P < 0.05). Sweat sodium concentration was 44.5 ± 23.3 mmol/L. Fluid intake from a water fountain was minimal. Subjects reported symptoms of dehydration during the session which in some cases persisted throughout the night and the next day. The 24H USG was 1.028 ± 0.004 and 1.027 ± 0.005 g/ml for MP and LP, respectively. CONCLUSIONS: Adolescent judo athletes arrive to practice with a fluid deficit, do not drink enough during training, and experience symptoms of dehydration which may compromise the quality of training and general well being. |
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Authors:
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Anita M Rivera-Brown; Roberto A De Félix-Dávila |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-30 |
Journal Detail:
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Title: International journal of sports physiology and performance Volume: - ISSN: 1555-0265 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-9-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101276430 Medline TA: Int J Sports Physiol Perform Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Center for Sports Health and Exercise Sciences at the Albergue Olímpico, Department of Physical Medicine, Rehabilitation and Sports Medicine, University of Puerto Rico School of Medicine, San Juan, Puerto Rico. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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