Rehydration with Intravenous Fluid and Oral Glycerol in Athletes: Effects on Cardiovascular, Hormonal, Thermoregulatory, Metabolic and Performance Variables

Not Applicable

Completed

• Conditions: Dehydration; Other - Research that is not of generic health relevance and not applicable to specific health categories listed above

• Registration Number: ACTRN12610001057077
• Lead Sponsor: niversity of Queensland

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2010-12-01
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: Male
• Target Recruitment: 15

Inclusion Criteria

1) male aged 18 – 40 yrs;
2) experienced cyclist;
3) high endurance training status (V•O2max > 55 mL · kg-1 · min-1); and
4) consistently high training volumes for at least the preceding two months

Exclusion Criteria

1) a history of current or previous renal, hepatic, cardiovascular, thermoregulatory or endocrine disorders;
2) contraindications to exercising in the heat;
3) any current or chronic health problems or injuries;
4) the use of any diuretic during the preceding four weeks; and
5) having made a blood donation in the preceding three months

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Change in plasma volume (measured using changes to heamoglobin/heamatocrit and Dill and Costal equations) to monitor hydration status.[Pre-dehydration, -1% bodyweight, -2% bodyweight, -3% bodyweight, post-dehydration, post-first hour of rehydration, mid-second hour of rehydration, post-second hour of rehydration, mid-equilibration, post-equilibration and following 15 min, 30 min, 10 km, 20 km, 30 km and 40 km of an exercise performance test.];Exercise performance assessed as time to complete a 40 km time trial.[Following 10 km, 20 km, 30 km and 40 km of a 40 km time trial.]