Should you sync your workouts to your cycle? new study seeks answers

NCT ID NCT05697263

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looks at whether scheduling workouts based on menstrual cycle phases improves fitness in women who exercise regularly. About 111 female athletes will follow different training schedules over three cycles. Researchers will measure changes in aerobic fitness, muscle strength, and body composition. The goal is to provide reliable, evidence-based advice for female athletes.

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 study could provide clear, evidence-based guidance on whether tailoring workouts to menstrual cycle phases improves athletic performance.

What could go wrong

This is an early-stage, observational-style trial with no treatment. Results may show no benefit from periodization, and findings may not apply to all athletes.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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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.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Angelica Lindén Hirschberg

    RECRUITING

    Stockholm, 17176, Sweden

    Contact Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••