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Cycling tests reveal how Athletes' bodies respond to exercise stress

NCT ID NCT07681362

Knowledge-focused Sponsor: Ondokuz Mayıs University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 02, 2026 · Last updated Jul 07, 2026 · Updated 2 times

Summary

This study looks at how team athletes' bodies respond to short, intense cycling and longer, moderate cycling. Researchers measure two key substances in saliva: cortisol (a stress hormone) and interleukin-6 (an immune signal). The goal is to see if athletes with different fitness levels show different responses. Participants are healthy team athletes aged 18 to 35 who do at least three training sessions per week.

What this could mean

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

What this could lead to
If successful, this could help coaches and sports scientists tailor training programs based on individual fitness levels and stress responses.
What could go wrong
This is a small observational study with only 27 participants, so results may not apply to all athletes or sports. It measures biomarkers, not performance outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

27 people

The number who actually took part.

Started

May 2025

Finished

Jun 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 35 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Team athletes aged 18 to 35 years Participation in organized team sports (e.g., volleyball, basketball, soccer, or handball) Minimum of 3 training sessions per week, with each session lasting at least 1 hour Sports participation history of at least 2 years Apparently healthy and free from known cardiovascular, metabolic, endocrine, or respiratory diseases Willingness to provide written informed consent Exclusion Criteria: Current musculoskeletal injury or illness affecting exercise performance Use of medications known to influence hormonal or inflammatory responses Smoking or use of tobacco products Acute infection within the previous two weeks Failure to complete both exercise testing sessions Failure to comply with pre-test instructions

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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.

Cardiorespiratory fitness Cortisol Exercise physiology Interleukin-6

Contacts and locations

Locations

  • Ondokuz Mayis University Faculty of Sport Sciences

    Samsun, Samsun, 55139, Turkey (Türkiye)

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