Nutritional Knowledge and Characteristics of HYROX Athletes
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Spain
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Nutritional Knowledge and Characteristics of HYROX Athletes: A Cross-Sectional Study
Overview
This is an observational study aiming to assess the nutritional knowledge, dietary habits, supplement use, body composition, and physiological profiles of HYROX athletes. The main objective is to describe and evaluate the nutritional, anthropometric, and performance-related characteristics of these athletes to better understand factors influencing race performance. The main question it seeks to answer is: What are the nutritional, kinanthropometric, and physiological profiles of HYROX athletes, and how are dietary practices, supplement use, and body composition associated with their performance?
Detailed description
HYROX athletes represent a unique cohort characterized by specific nutritional, physiological, and multi-modal performance demands, including body composition, strength, and endurance. Despite the global growth of hybrid fitness competitions, empirical evidence regarding the dietary practices, nutritional knowledge, and body composition of these athletes remains limited. This study addresses this gap through a comprehensive cross-sectional assessment of competitive HYROX athletes.
Data were collected using validated online questionnaires, including a Short Food Frequency Questionnaire (SFFFQ) to evaluate dietary intake, a 20-item supplement use questionnaire assessing consumption patterns, beliefs, and knowledge, and the Abbreviated Nutrition for Sport Knowledge Questionnaire (A-NSKQ) to measure nutritional knowledge. Eating behaviors and potential disordered eating were screened using the EAT-26 and the Figure Rating Scale (FRS). This structured protocol enables a detailed characterization of dietary habits, supplementation practices, nutritional knowledge, and body composition among HYROX athletes. By synthesizing these metrics, the study establishes a foundational characterization of the hybrid athlete, identifying physiological risks and providing the evidence-based framework necessary to optimize competitive performance
Primary outcome measures
- Dietary intake [Time frame: 5 years]
Secondary outcome measures (1)
- Body composition [Time frame: 5 years]
Eligibility 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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Other
Study locations
Spain · 1 center
- Faculty of Health Sciences. University of Alicante — Alicante
Publications
- Kong P, Harris LM. The sporting body: body image and eating disorder symptomatology among female athletes from leanness focused and nonleanness focused sports. J Psychol. 2015 Jan-Apr;149(1-2):141-60. doi: 10.1080/00223980.2013.846291. Epub 2014 Mar 4. PMID 25511202
- Trakman GL, Forsyth A, Hoye R, Belski R. Development and validation of a brief general and sports nutrition knowledge questionnaire and assessment of athletes' nutrition knowledge. J Int Soc Sports Nutr. 2018 Apr 19;15:17. doi: 10.1186/s12970-018-0223-1. eCollection 2018. PMID 29713248
- Jovanov P, Dordic V, Obradovic B, Barak O, Pezo L, Maric A, Sakac M. Prevalence, knowledge and attitudes towards using sports supplements among young athletes. J Int Soc Sports Nutr. 2019 Jul 4;16(1):27. doi: 10.1186/s12970-019-0294-7. PMID 31272457
- Lafontant K, Livingston J, Smith S, Da Silva Barbera MA, Gonzalez C, Kampiyil S, Nguyen NLN, Johnson B, Stout JR, Fukuda DH. Describing Dietary Habits and Body Composition Among High-Intensity Functional Training Athletes: A Mixed Methods Approach. Sports (Basel). 2025 Oct 2;13(10):340. doi: 10.3390/sports13100340. PMID 41150475
- Cavedon V, Milanese C, Marchi A, Zancanaro C. Different amount of training affects body composition and performance in High-Intensity Functional Training participants. PLoS One. 2020 Aug 20;15(8):e0237887. doi: 10.1371/journal.pone.0237887. eCollection 2020. PMID 32817652
- Adami PE, Rocchi JE, Melke N, De Vito G, Bernardi M, Macaluso A. Physiological profile comparison between high intensity functional training, endurance and power athletes. Eur J Appl Physiol. 2022 Feb;122(2):531-539. doi: 10.1007/s00421-021-04858-3. Epub 2021 Dec 1. PMID 34853894
Identifiers
NCT: NCT07531953 · UA-2025-07-14