NCT03304197

Hydration and Exercise Performance in Cycling

How Does Altering the Composition of Ingested Fluids Affect Hydration Status Whilst Cycling?

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 15 (actual)
• Sponsor: University of Exeter · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Accepted

Summary

This study will evaluate the effects manipulating ingested fluids can have on hydration status and cycling performance. There will be 4 different conditions.

Detailed description

Being dehydrated can decrease endurance exercise performance. The investigators wish to test which of three drinks is most effective at re-hydrating cyclists and if this affects performance. Subjects will undertake 4 tests: once dehydrated, once hydrated with water, once hydrated with a sports-specific drink, and once with an altered sports drink. Blood samples will be taken and expired gasses will be sampled at various time points throughout the tests for later analysis. A small amount of labelled water will be consumed with each drink, a technique which will allow us to quantify the absorption of each of the drinks.

Conditions

• Healthy

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Hypotonic	N/A: see arm description
DIETARY_SUPPLEMENT	Isotonic	N/A: see arm description
DIETARY_SUPPLEMENT	Placebo	N/A: see arm description
OTHER	Dehydrated	N/A: see arm description

Timeline

• Start date: 2017-09-11
• Primary completion: 2018-06-01
• Completion: 2018-06-01
• First posted: 2017-10-06
• Last updated: 2018-10-12

Locations

1 site across 1 country: United Kingdom