From couch to triathlon: what happens inside your body after a year of training?

NCT ID NCT06467656

Completed Knowledge-focused Sponsor: University of British Columbia Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how 12 months of personalized endurance training—swimming, cycling, and running—affects the body and mind of healthy adults who were not regular exercisers. Fifty-eight people aged 19-39 took part, with some training up to 20 hours a week and others serving as a control group. The main goal was to measure changes in maximum oxygen use (VO2max) and other physical and mental adaptations over time.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: endurance training (swimming, cycling, running) plus strengthening exercises
What this could lead to: If successful, this could help design better training programs for beginners and improve understanding of how exercise changes the body over a year.
What could go wrong: This is a small, completed study in healthy volunteers, not a treatment trial. Results may not apply to older or less fit people, and no disease outcomes are measured.

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Conditions

The condition(s) this trial relates to.

Motor Activity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

HEALTHY PARTICIPANTS

Contacts and locations

Locations

University of British Columbia

Kelowna, British Columbia, V1V1V7, Canada

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