An interventional study of Low caffeine dose and Moderate caffeine dose in Caffeine, sponsored by St. Mary's University, Twickenham. Not yet recruiting. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-01-18.
Sponsored by St. Mary's University, Twickenham · Not applicable, Interventional, and Basic science
The goal of this clinical trial is to learn about the effects of caffeine on exercise physiology and the subsequent quantification of athlete training zones in trained cyclists. The main questions that it aims to answer are:
Participants will complete four trials on a cycle ergometer as follows:
Measures of heart rate, oxygen uptake, blood lactate, and perceived exertion will be recorded throughout all trials.
Researchers will compare the effects of exercise intensity, caffeine dose, and sex to see if they affect exercise physiology and training zone quantification.
St. Mary's University, Twickenham is the lead sponsor of 16 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
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2 mg/kg dose of caffeine (in pill form)
Drug: Low caffeine dose
5 mg/kg dose of caffeine (in pill form)
Drug: Moderate caffeine dose
5 mg/kg dose of placebo (Maltodextrin in pill form)
Drug: Placebo
2 mg/kg dose of caffeine in pill form
5 mg/kg dose of caffeine in pill form
5 mg/kg dose of maltodextrin in pill form
Blood lactate concentration
Change from baseline in blood lactate concentration measured at rest and at seven different exercise intensities (50, 55, 60, 65, 70, 75, and 80% percent of maximal oxygen uptake) on an electromagnetically-braked cycle ergometer
Time frame: From baseline to completion, up to 31 days
Heart rate
Change from baseline in heart rate measured at rest and at seven different exercise intensities (50, 55, 60, 65, 70, 75, and 80% percent of maximal oxygen uptake) on an electromagnetically-braked cycle ergometer
Time frame: From baseline to completion, up to 31 days
Oxygen uptake
Change from baseline in oxygen uptake measured at rest and at seven different exercise intensities (50, 55, 60, 65, 70, 75, and 80% percent of maximal oxygen uptake) on an electromagnetically-braked cycle ergometer
Time frame: From baseline to completion, up to 31 days
Perceived exertion
Change from baseline in rating of perceived exertion measured (using the 6-20 Borg scale) at seven different exercise intensities (50, 55, 60, 65, 70, 75, and 80% percent of maximal oxygen uptake) on an electromagnetically-braked cycle ergometer
Time frame: From baseline to completion, up to 31 days
No study locations are listed for this record.
This study is not yet recruiting, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.
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St. Mary's University, Twickenham