Understanding the effects of ultramarathon running on athletes

Penyagolosa Trail Saludable 2025

Observational Universitat Jaume I · NCT06969898

This study looks at how running a long ultramarathon affects athletes' training, health, and recovery to see what factors influence their performance and if there are differences between men and women.

Quick facts

Study typeObservational
Enrollment50 (estimated)
Ages18 Years to 60 Years
SexAll
SponsorUniversitat Jaume I Academic / other
Locations1 site (Castellón De La Plana, Castellón)
Trial IDNCT06969898 on ClinicalTrials.gov

What this trial studies

This observational study focuses on Ultratrail runners participating in the 106 km Castelló-Penyagolosa race, aiming to gather insights into their training habits, physical condition, and performance factors. The research involves data collection before, during, and after the race, including assessments of muscle damage, strength loss, and hydration levels. Blood and urine samples will be analyzed to track physiological changes and recovery processes. Additionally, the study will explore sex differences in performance and physiological responses among the runners.

Who should consider this trial

Good fit: Ideal candidates are healthy adults aged 18-60 who have completed at least two races of 65 km or longer and are registered for the CSP 2025 race.

Not a fit: Patients with heart or kidney disease, or those taking ongoing medications, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of ultramarathon running and improve training and recovery strategies for athletes.

How similar studies have performed: While there is growing interest in the physiological impacts of ultramarathon events, this specific approach to studying athletes during the race is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults healthy with 18-60 years
* Must have completed at least two races of 65 km or longer.
* Must be registered as a participant in the CSP 2025 race

Exclusion Criteria:

* Having heart disease
* Having kidney disease
* Taking a medication on an ongoing basis

Where this trial is running

Castellón De La Plana, Castellón

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Physical ExerciseUltramarathonbiomarkersMuscle damagerecoveryrunnersultrasound
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.