Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2026-03-26 @ 3:20 PM
Ignite Modification Date:
2026-03-26 @ 3:20 PM
NCT ID:
NCT07402902
Brief Summary:
The goal of this clinical trial is to learn if different forms of caffeine ingestion can influence fat oxidation during submaximal cycling exercise. The study will recruit healthy adults, both men and women, aged 18 to 50, who regularly perform aerobic exercise. The main questions it aims to answer are:
* Does caffeine increase fat oxidation during one hour of cycling at the Fatmax intensity?
* Do different forms of caffeine ingestion (capsule, coffee, chewing gum, or mouth rinse) differ in their effect on fat oxidation?
* Do these caffeine forms alter total energy expenditure, cardiorespiratory response, or perceived exertion during exercise?
* Are there differences in the occurrence or severity of side effects between caffeine administration methods?
Researchers will compare each caffeine form to its corresponding placebo to determine their effects on fat oxidation and other physiological outcomes.
Participants will:
* Attend a pre-experimental session to determine their Fatmax intensity and VO₂max using an incremental cycling test
* Perform eight experimental sessions, each consisting of one hour of cycling at Fatmax intensity
* Receive caffeine or placebo via capsules, coffee, chewing gum, or mouth rinse according to a randomized, double-blind, crossover design
* Be monitored for fat and carbohydrate oxidation, total energy expenditure, heart rate, and perceived exertion during exercise
* Report any side effects immediately after the session and 24 hours later using a structured questionnaire
All sessions will be conducted under controlled laboratory conditions with standardized protocols to ensure safety and reliable measurements.
Study:
NCT07402902
Study Brief:
Protocol Section:
NCT07402902