Pre-exercise Ingestion of a Low Glycaemic Index Rice-based Mixed Meal Increases Fat Oxidation and… (NCT06544252) | Clinical Trial Compass
CompletedNot Applicable
Pre-exercise Ingestion of a Low Glycaemic Index Rice-based Mixed Meal Increases Fat Oxidation and Endurance Running in a Hot-humid Environment
Malaysia12 participantsStarted 2022-01-01
Plain-language summary
The objective of this research is to determine the influence of low and high glycemic index Malaysian pre-exercise mixed meals on endurance exercise performance in a hot-humid environment. Glycemic index (GI) is a method used to classify CHO-containing foods based on their influence on postprandial blood glucose when compared to the response on blood glucose after ingesting the same amount of CHO from a reference food (glucose or bread). Low GI (LGI) foods are digested and absorbed more slowly as compared to high GI (HGI) foods, resulting in a stable rise in blood glucose levels.
The participants were trained male endurance long-distance runners. On the day of experimental trials, they consumed pre-exercise rice-based mixed meal, either LGI or HGI 3 hours before endurance running exercise. After that, they ran for 45 minutes at constant running speed equivalent to 70% VO2peak, followed by 10km time-trial. The respiratory gases, blood measures, rectal and skin temperature were measured throughout the running test.
Who can participate
Age range
18 Years – 35 Years
Sex
MALE
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* healthy
* age 18-35 years old
* trained (peak oxygen consumption (V̇O2peak): ≥ 55 mL.kg-1.min-1)
* training volume (\>150 min, ≥ three times per week)
* competing at the national level
* \>2-year of running experience
* tier 2 (trained) or tier 3 (highly trained) runners (McKay et al. 2022)
* no allergies to any test foods
Exclusion Criteria:
* diagnosis of chronic diseases (i.e. diabetes mellitus, hypertension, cardiovascular disease)
* bone, muscle or joint impairments
* on medication
* currently smoking
* use of illicit drugs
* use of dietary supplements
* on any particular diet
Questions worth asking your doctor
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1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
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Questions for the trial coordinator
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1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.