Plain-English translation of NCT07232628 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Researchers want to understand a common problem among serious endurance athletes: not eating enough calories to match their intense training. This study will follow 40 elite triathletes over two years, measuring hormones, bone density, muscle strength, and injury rates to see how inadequate nutrition affects their bodies and athletic performance.
Many endurance athletes, especially triathletes, eat too little relative to how hard they train. This imbalance can damage hormones, weaken bones, lower immunity, and increase injuries—but we don't yet fully understand how widespread this problem is or how to prevent it in this population.
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You'll visit the Institute of Sports Medicine five times over two years (during off-season, pre-season, and racing periods) for comprehensive test days that include blood draws, bone and muscle scans, heart and lung fitness tests, and strength assessments. Between visits, you'll log your food intake using a smartphone app, wear a device to track your training, and report any injuries monthly. You'll also answer questionnaires about your eating and training habits quarterly.
AI-generated summary from trial data · Jun 8, 2026 · Not medical advice
Denmark
Enrollment target
~40 participants
Started
October 2025
Primary completion
November 2027
Age range
18 Years and older
Last updated on clinicaltrials.gov in November 2025.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Jakob Agergaard, Ph.D.
Bispebjerg Hospital
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.