Time Restricted Feeding in Male Runners (NCT03569852) | Clinical Trial Compass
CompletedNot Applicable
Time Restricted Feeding in Male Runners
United States21 participantsStarted 2018-07-15
Plain-language summary
This is a cross-over intervention study designed to evaluate how four weeks of time restricted feeding (16 hours fasting and 8 hours feeding), compared to four weeks of a more traditional eating pattern (12 hours fasting and 12 hours feeding), affects resting energy expenditure, subjective and biochemical markers of satiety and hunger, body composition, cardiovascular health, substrate utilization and fitness in male competitive runners.
Who can participate
Age range
20 Years – 40 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Competitive runners who have been actively training for 3 or more years
* Weigh a minimum of 110 lbs
* Training 4-6 times per week and run a minimum of 20 miles per week
* Competed in a race within past 12 months at a distance of 5 - 26.1 km
* Willing to repeat same monthly training protocol during two 4-week interventions
* VO2max range of 40-70 ml/kg/min
Exclusion Criteria:
* Smoker
* Take medications that have cardiovascular or metabolic effects
* Taking dietary supplements
* Following a restrictive diet including restricting calories or carbohydrates
* Evidence of an eating disorder
* Major injuries in past 3 months
* Chronic disease that affects bone health, metabolism or the cardiorespiratory system
* Present with any contra-indication to exercise testing (cardiovascular abnormalities) as evaluated by study physician
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
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?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
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.
What they're measuring
1
Change in resting energy expenditure
Timeframe: Study day 1, 28, 43 and 70
Trial details
NCT IDNCT03569852
SponsorUSDA, Western Human Nutrition Research Center