Cycling with your menstrual cycle

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an observational project enrolling female cyclists who are JOIN app members to track their menstrual cycles together with subjective and objective training data. Participants will log cycle timing and symptoms in the app while sharing device-recorded metrics such as power, heart rate, and training load from their rides. Investigators will combine these data with statistical and AI analyses to look for consistent patterns in endurance, recovery, power output, and motivation across cycle phases. If patterns emerge, the findings could inform individualized, cycle-aware training guidance.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* JOIN cycling app member
* female cyclist
* informed consent period tracking in JOIN

Exclusion Criteria:

* none

Where it's running

• Martini ziekenhuis
  Groningen, Netherlands Recruiting
• Martini Ziekenhuis
  Groningen, Netherlands Not yet recruiting

Study contacts

• Study coordinator: Anne Marijn van der Graaf, MD/PhD
• Email: annemarijn.graaf@outlook.com
• Phone: 0031611474158

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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• Menstrual phase, anesthetic use, and postoperative nausea after gallbladder removal

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.