| Comparison of hydrostatic weighing and bioelectric impedance measurements in determining body composition pre- and postdehydration. | |
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MedLine Citation:
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PMID: 18796946 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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This study investigated the effect of dehydration on measurements of body composition by hydrostatic weighing (HW) and bioelectric impedance analysis (BIA). Ten endurance-trained male athletes between the ages of 18 and 42 years performed an endurance training session consisting of running until body weight was reduced by approximately 3%. Body composition was determined prior to exercise and immediately after exercise by HW and BIA techniques. A high correlation existed between pre- and postdehydration for both HW and BIA. Validity coefficients between HW and BIA were moderate (predehydration 0.85 and postdehydration 0.82). In addition, BIA percent fat was 3.5% higher than HW percent fat. The BIA revealed a mean loss of 2.1% fat BIA and only 0.9% fat HW after approximately 45 minutes of exercise. BIA also showed an increase in percent body water (mean = 2.6%) in all 10 subjects after dehydration. There are indications that BIA, with its present equational configuration, is measuring something other than lean body weight. J Orthop Sports Phys Ther 1989;10(11):451-455. |
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Authors:
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P Pearman; G Hunter; C Hendricks; P O'Sullivan |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of orthopaedic and sports physical therapy Volume: 10 ISSN: 0190-6011 ISO Abbreviation: J Orthop Sports Phys Ther Publication Date: 1989 |
Date Detail:
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Created Date: 2008-09-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7908150 Medline TA: J Orthop Sports Phys Ther Country: United States |
Other Details:
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Languages: eng Pagination: 451-5 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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