Lifelong endurance exercise to reduce coronary artery disease risk

Lifetime Endurance Exercise to Prevent Coronary Artery Disease. A Comparison With Late-onset Endurance Training and a Sedentary Lifestyle

Observational Universitaire Ziekenhuizen KU Leuven · NCT03711539

This study is testing if lifelong endurance exercise can help middle-aged and older people reduce the risk of heart problems compared to those who start exercising later or don’t exercise at all.

Quick facts

Study typeObservational
Enrollment1800 (estimated)
Ages45 Years to 70 Years
SexMale
SponsorUniversitaire Ziekenhuizen KU Leuven Academic / other
Locations3 sites (Edegem and 2 other locations)
Trial IDNCT03711539 on ClinicalTrials.gov

What this trial studies

This study investigates whether lifelong endurance exercise can lower the incidence of non-calcified plaques in the coronary arteries compared to late-onset endurance exercise and a non-athletic lifestyle. It focuses on middle-aged and older individuals who engage in competitive sports, examining the relationship between exercise habits and cardiovascular health. The study aims to clarify the exercise dose-response relationship and its implications for healthy aging and cardiovascular risk. Participants will include lifelong endurance athletes, late-onset endurance athletes, and healthy non-athletes.

Who should consider this trial

Good fit: Ideal candidates include lifelong endurance athletes aged 45-70 who began endurance sports before age 30, late-onset endurance athletes who started after age 30, and healthy non-athletes.

Not a fit: Patients who do not engage in endurance sports or are younger than 45 years may not receive benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into how lifelong endurance exercise may prevent coronary artery disease and improve cardiovascular health.

How similar studies have performed: Other studies have explored the benefits of exercise on cardiovascular health, but this specific comparison of lifelong versus late-onset endurance exercise is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Lifelong endurance athletes:

  * Initiation of endurance sports before the age of 30 years
  * Activities at regional, national or international level
  * Sports: triathlon, cycling, distance running (1500 metres and longer) and rowing
  * Aged 45-70 years
  * Involved in competition and high-level training:

    * more than 10 hours per week for cyclists and triathletes
    * more than 6 hours per week for runners and rowers.
* Late-onset endurance athletes:

  * Initiation of endurance sports after the age of 30 years and at least 6 months ago
  * Activities at regional, national or international level
  * Sports: triathlon, cycling, distance running (1500 metres and longer) and rowing
  * Aged 45-70 years
  * Involved in competition and high-level training:

    * more than 10 hours per week for cyclists and triathletes
    * more than 6 hours per week for runners and rowers.
* Healthy non-athletes

  * subjects seen in the outpatient clinic for a work-related medical check-up
  * university alumni
  * subjects from multisports organisations
  * history of regular sports practice \<3 hours /week
  * participation in regular sports with a low dynamic component (e.g. billiards, darts or bowling) \>3 hours /week is allowed

Exclusion Criteria:

* history of smoking (\> 5 pack years)
* history of diabetes
* diagnosis of cardiopulmonary disorder prior to inclusion
* medical treatment for arterial hypertension or hypercholesterolemia

Where this trial is running

Edegem and 2 other locations

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 Coronary Artery DiseasePhysical ActivityLifestyleEndurance ExerciseAtrial FibrillationMyocardial FibrosisCoronary CT
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.