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Saddle showdown: which bike seat is best for your manhood?

NCT ID NCT05887193

Knowledge-focused Sponsor: Milan Martínek Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested 14 elite male road cyclists to see how different bike saddle designs affect oxygen and carbon dioxide levels in the penis. Riders used a stationary trainer while researchers measured blood gas changes over time. The goal was to compare a new 3D-printed saddle with two popular racing saddles to find which design minimizes pressure-related issues.

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

14 people

The number who actually took part.

Started

Apr 2023

Finished

May 2023

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 45 years

Sex

Male participants only

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: * gender: male, age: 18-45 years, discipline: road cycling, annual mileage: more than 14000 km (Tier 3-4) Exclusion Criteria: * Participants other than male, diagnosed with erectile dysfunction, acute or chronic back pain, acute (especially infectious) illness or injury, and in recovery from illness or injury are not eligible for inclusion in the research

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Conditions

The condition(s) this trial relates to.

erectile dysfunction Hypesthesia

As listed by the trial registrant

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

Blood gas monitoring, transcutaneous Cyclists Healthy Penile numbness

Contacts and locations

Locations

  • Charles University

    Prague, 162 52, Czechia

More trials for these conditions

Other studies related to the condition(s) this trial covers.