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NCT02985606 Clinical Trial

How Does Altering the Timing of Pre-exercise Low-dose Caffeine Ingestion Affect Endurance Exercise Performance

Healthy Clinical Trial

Official title:
How Does Altering the Timing of Pre-exercise Low-dose Caffeine Ingestion Affect Endurance Exercise Performance

Clinical Trial Details — Status: Completed

Administrative data
NCT number NCT02985606
Other study ID # 181739/02
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date November 2016
Est. completion date September 15, 2018

Study information
Verified date October 2018
Source University of Exeter
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Investigate how manipulating the time between caffeine ingestion and exercise may alter exercise performance and cognition

Recruitment information / eligibility
Status Completed
Enrollment 14
Est. completion date September 15, 2018
Est. primary completion date June 30, 2017
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria:

- vo2max > 55 ml/kg/min

- females on contraceptive pill

Exclusion Criteria:

- recent skeletal muscle injury

- cardiovascular injury

- metabolic disease

Study Design

Related Conditions & MeSH terms

Intervention

Other:
• Caffeine powder -60

• Caffeine powder -30

• Caffeine powder 0

• Placebo powder -60

• Placebo powder -30

• Placebo powder 0

Locations
Country Name City State
United Kingdom Sport and Health Sciences Exeter Devon

Sponsors (1)
Lead Sponsor Collaborator
University of Exeter

Country where clinical trial is conducted

United Kingdom, 

Outcome
Type Measure Description Time frame Safety issue
Primary Work done in kilojoules (kJ) during a 15 minute time trial on a cycle ergometer 15 minutes
Secondary Whole body fuel substrate utilisation measured using indirect calorimetry 10 minutes
Secondary Change in plasma caffeine concentration and metabolites 2 hours 45 minutes
Secondary Change in cognitive function measured using stroop test 2 hours 45 minutes
Secondary Collection of saliva for genotyping of CYP1A2 30 mintes
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