Nutrition, supplements, and body composition in HYROX athletes
Official title: Nutritional Knowledge and Characteristics of HYROX Athletes: A Cross-Sectional Study
Run by University of Alicante · NCT07531953 · Data updated 2026-11-12
This study looks at the diets, supplement habits, nutrition knowledge, and body composition of competitive HYROX athletes to see how these factors relate to race performance.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 122 (estimated) |
| Sponsor | University of Alicante Academic / other |
| Locations | 1 site (Alicante, Alicante) |
| Status | Recruiting |
| Started | September 25, 2025 |
| Main results expected | January 8, 2027 |
| Study ends | June 28, 2031 |
| Registry record updated | April 15, 2026 |
| Trial ID | NCT07531953 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Competitive HYROX athletes aged 18 or older who have participated in at least one official HYROX competition in the past 24 months and who compete in the Pro or Open categories.
✕Probably not a fit
Recreational exercisers, athletes under 18, those who have not competed in an official HYROX event in the past 24 months, or athletes outside the Pro/Open categories are unlikely to benefit directly from these findings.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a cross-sectional observational study of competitive HYROX athletes who competed in at least one official event in the past 24 months. Data were collected primarily via validated online questionnaires, including a Short Food Frequency Questionnaire (SFFFQ), a 20-item supplement use survey, the Abbreviated Nutrition for Sport Knowledge Questionnaire (A-NSKQ), the EAT-26, and the Figure Rating Scale (FRS). The protocol characterizes dietary intake, supplementation patterns, nutritional knowledge, eating behaviours, and anthropometric/body composition features and links these metrics to performance-related characteristics. The study was led by the University of Alicante with collaboration from the University of Stirling.
Why it matters
Potential benefit: If successful, the results could help HYROX athletes and coaches tailor nutrition and supplement strategies and spot potential risks like disordered eating to improve race performance and safety.
How similar studies have gone: Questionnaire-based nutrition and body composition studies have been informative in other athletic populations, but targeted data on HYROX competitors are limited, making this a relatively novel characterization in this specific sport.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * competitive HYROX athletes * age 18 or older * having participated in at least one official HYROX competition in the past 24 months Exclusion Criteria: \- Participants not included in the Pro or Open categories were excluded
Where it's running
-
Faculty of Health Sciences. University of Alicante
Alicante, Alicante, Spain Recruiting
Study contacts
- Study coordinator: Jose Miguel Martinez Sanz, Dr
- Email: josemiguel.ms@ua.es
- Phone: +34 620420726
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.