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| Research Title: |
The hydration ability of three commercially available sports drinks and water. |
| Type of Research: |
Publication Articles |
| Category: |
Preventative Techniques
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| Keywords: |
Injury Prevention
Water, Hydration, Sport drinks
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| Author(s): |
Rebecca J Hill, Leslie J C Bluck, Peter S W Davies |
| Author(s) Bio Box: |
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| Release Date: |
15 May 2008 |
| Research Summary/Text: |
During prolonged exercise, fatigue may be a consequence of both the depletion of the body’s glycogen stores and also dehydration. Dehydration as low as two percent of body water has been shown to adversely affect performance and increase cardiovascular strain. As well as their potential for energy supplementation, commercially-available sports drinks may also play a role in enhancing performance through their hydration ability. Three different commercially-available sports drinks and water, with deuterium labels (isotopic tracers), were administered to subjects at weekly intervals for four weeks. The deuterium dilution technique enabled the measurement of the rate of fluid uptake at the cellular level. It is non-invasive and was used with subjects who were exercising as well as those at rest.
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| Research Objectives: |
This study examines the hydration capabilities of three commercially-available sports drinks and water using a deuterium dilution technique under conditions of rest and exercise.
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| Research Outcomes: |
During exercise the maximum rate of absorption was attained more quickly with sports drinks compared with water. This advantage is short-lived however, there being no differences between the test fluids in the time taken for half of the total water absorption to be complete. When total absorption time is taken into account, sports drinks did not confer hydration benefits to subjects at rest or undertaking low intensity exercise.
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| Research Implications: |
Under conditions where recovery periods occur between further bouts of exercise, sports drinks may be favourable over water due to the faster speed at which they reach their maximum absorption rate.
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| Availability of Full Research Paper: |
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