Journal article
Relationship Between Changes in Upon-Waking Urinary Indices of Hydration Status and Body Mass in Adolescent Singaporean Athletes
International Journal of Sport Nutrition and Exercise Metabolism, Vol.20(4), pp.330-335
2010
PMID: 20739721
Abstract
This study investigated the relationship between changes in upon-waking body mass (BM) and changes in urine specific gravity (Usg) and urine color (Ucol) from 1 day to the next. Throughout the 5-day investigation, healthy adolescent Singaporean athletes (n = 66) had their upon-waking, bladder-voided BM measured. A small aliquot of the first bladder void each day was collected and analyzed for Usg and Ucol, the latter by both an investigator (IUcol) and individual participants (SUcol). Results revealed a significant inverse relationship between changes in BM and changes in Usg (p = .003) and Ucol (p = .001). On average, Usg and Ucol changed by ~0.003 units and ~1 color (across a 9-unit scale), respectively, with every 1% change in BM from 1 day to the next. There was a stronger relationship between Usg and IUcol (r = .82, p less than .001) than between Usg and SUcol (r = .60, p less than .001). These results suggest that the degree of fluid deficit may be predicted from the Usg measurements among moderately hypohydrated athletes. In addition, training athletes to interpret and use the Ucol chart is recommended
Details
- Title
- Relationship Between Changes in Upon-Waking Urinary Indices of Hydration Status and Body Mass in Adolescent Singaporean Athletes
- Authors
- C H Lew (Author) - Health Promotion Board, SingaporeGary J Slater (Author) - Singapore Sports Council, SingaporeG Nair (Author) - Singapore Sports School, SingaporeMichelle Miller (Author) - Flinders University
- Publication details
- International Journal of Sport Nutrition and Exercise Metabolism, Vol.20(4), pp.330-335
- Publisher
- Human Kinetics
- Date published
- 2010
- DOI
- 10.1123/ijsnem.20.4.330
- ISSN
- 1526-484X
- PMID
- 20739721
- Copyright note
- Copyright © 2010 Human Kinetics. Reproduced here in accordance with the publisher's copyright policy.
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Health - Nutrition & Dietetics; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99450296202621
- Output Type
- Journal article
Metrics
68 File views/ downloads
460 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- International collaboration
- Web Of Science research areas
- Nutrition & Dietetics
- Sport Sciences
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites