MedPath

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

Not Applicable
Completed
Conditions
Healthy
Registration Number
NCT02985606
Lead Sponsor
University of Exeter
Brief Summary

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

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
14
Inclusion Criteria
  • vo2max > 55 ml/kg/min
  • females on contraceptive pill
Exclusion Criteria
  • recent skeletal muscle injury
  • cardiovascular injury
  • metabolic disease

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Primary Outcome Measures
NameTimeMethod
Work done in kilojoules (kJ) during a 15 minute time trial on a cycle ergometer15 minutes
Secondary Outcome Measures
NameTimeMethod
Collection of saliva for genotyping of CYP1A230 mintes
Change in plasma caffeine concentration and metabolites2 hours 45 minutes
Change in cognitive function measured using stroop test2 hours 45 minutes
Whole body fuel substrate utilisation measured using indirect calorimetry10 minutes

Trial Locations

Locations (1)

Sport and Health Sciences

🇬🇧

Exeter, Devon, United Kingdom

Sport and Health Sciences
🇬🇧Exeter, Devon, United Kingdom

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.