Nutritional Knowledge and Characteristics of HYROX Athletes

NCT07531953 | Recruiting

• 1 other identifier: UA-2025-07-14
• Study Type: observational
• Target: 122
• Locations: 1 country
• Sites: 1

Brief Summary

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?

Conditions

Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes

Keywords

HYROX, Body composition, Nutritional Assessment, HIFT

Outcome Measures

Primary Outcomes (1)

• Dietary intake

  A validated Short Food Frequency Questionnaire (SFFFQ) will be used to assess dietary quality. The questionnaire consists of 20 items covering key food groups, including fruits, vegetables, high-fiber foods, high-fat and sugary foods, meat and meat products, and fish. Participants are asked to report the frequency of foods and beverages consumed during a "typical week" over the past month. Response options range from "rarely or never" to "more than five times per day." The final score will be calculated based on the extent to which participants meet the UK dietary recommendations.

  5 years

Secondary Outcomes (1)

• Body composition

  5 years

Other Outcomes (2)

• Eating behaviours disorders

  5 years

• Nutritional Knowledge

  5 years

Study Arms (2)

Male athletes

Competitive male athletes

Female athletes

Competitive female athletes

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

HYROX athletes

You may qualify if:

• competitive HYROX athletes
• age 18 or older
• having participated in at least one official HYROX competition in the past 24 months

You may not qualify if:

• \- Participants not included in the Pro or Open categories were excluded

Sponsors & Collaborators

• University of Alicante: lead
• University of Stirling: collaborator

Study Sites (1)

Faculty of Health Sciences. University of Alicante

Alicante, Alicante, 03690, Spain

RECRUITING

Related Publications (6)

• 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 RESULT

• 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 RESULT

• 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 RESULT

• 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 RESULT

• 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 RESULT

• 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 RESULT

Central Study Contacts

Jose Miguel Martinez Sanz, Dr

CONTACT

+34 620420726; josemiguel.ms@ua.es

Nidia Rodriguez-Sanchez, Dr

CONTACT

+44 (0)1786 466098; nidia.rodriguezsanchez@stir.ac.uk

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor. Director of the Research Group on Applied Dietetics, Nutrition and Body Composition. Nursing Department. Faculty of Health Sciences. University of Alicante

Study Record Dates

• First Submitted: March 23, 2026
• First Posted: April 15, 2026
• Study Start: September 25, 2025
• Primary Completion (Estimated): January 8, 2027
• Study Completion (Estimated): June 28, 2031
• Last Updated: April 15, 2026

Record last verified: 2026-03

Data Sharing

• IPD Sharing: Will not share

Locations

ES (1)