This study aims to learn about relative energy deficiency in male and female rowers at the end of the direct sport preparation phase of the annual training cycle. The main questions: \- How will energy intake influence leptin, cortisol levels, mood, gut discomfort, and permeability? The observational study involves male and female rowers from the Polish rowing team. Participants will perform 2000 meter ergometer test and 6000 ergometer test in annual training cycle. Researchers will compare outcomes from both tests.
Age range
18 Years – 23 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
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.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
-FABP (intestinal fatty acid binding protein)to measure epithelial wall injury
Timeframe: Blood samples was taken from the cubital vein at three-time points: before each stress test (after overnight fasting) up to one hour after getting up, 1 minute after the test, and 3-hour recovery period
Leptin to measure long-term energy balance
Timeframe: Blood samples was taken from the cubital vein at three-time points: before each stress test (after overnight fasting) up to one hour after getting up, 1 minute after the test, and 3-hour recovery period
Cortisol to measure stress
Timeframe: Blood samples was taken from the cubital vein at three-time points: before each stress test (after overnight fasting) up to one hour after getting up, 1 minute after the test, and 3-hour recovery period
sCD14 multifunctional lipopolysaccharide receptor
Timeframe: Blood samples was taken from the cubital vein at three-time points: before each stress test (after overnight fasting) up to one hour after getting up, 1 minute after the test, and 3-hour recovery period
Claudin to measure tight junction leakage
Timeframe: Blood samples was taken from the cubital vein at three-time points: before each stress test (after overnight fasting) up to one hour after getting up, 1 minute after the test, and 3-hour recovery period
POMS
Timeframe: day before the test
REST-Q sport
Timeframe: day before the test