Menstrual Cycle and Women's Performance

Condition(s) studied

Investigational drug(s) / intervention(s)

Menstrual Cycle Tracking: Menstrual cycle monitoring using a mobile application for approximately 2 months to schedule laboratory visits to predefined cycle phases.

Performance and Strength Testing: Repeated lower-limb performance/strength assessments during laboratory visits in different menstrual cycle phases.

Musculoskeletal Assessment: Non-invasive assessment of selected muscle and tendon mechanical properties across cycle phases.

Body Composition and Symptom Assessment: Body composition measurement and collection of self-reported menstrual-related symptoms at laboratory visits.

Study summary

This study examines how different phases of the menstrual cycle are associated with selected performance and musculoskeletal parameters in physically active women aged 18-35 years.

Participants will track their menstrual cycle using a mobile app for approximately 2 months and attend 3 laboratory visits scheduled to specific cycle phases.

At each visit, participants will complete non-invasive assessments including lower-limb strength/performance testing, musculoskeletal measurements (muscle and tendon properties), body composition assessment, and symptom-related questionnaires.

The goal is to improve understanding of physiological variability across the menstrual cycle and support evidence-based planning of training, testing, and clinical practice in women.

Eligibility

Primary outcome measure(s)

• Phase-specific change in lower-limb neuromuscular performance across the menstrual cycle — Assessed at 3 laboratory visits across approximately 2 months (cycle tracking period)
  Within-subject differences in lower-limb performance/strength outcomes measured during three laboratory visits scheduled to predefined menstrual cycle phases.

Trial sites (1)

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