Influence of the Menstrual Cycle on the Maximal Strength of the External and Internal Rotators of the Shoulder in High-level Sports Women.

The goal of this prospective interventional study is to measure the strength of the external and internal rotator muscles of both shoulders (dominant and non-dominant) of Montpellier Hérault Rugby players at different stages of their menstrual cycle. During the menstrual phase (beginning of the follicular phase from D0 to D5) and during the ovulatory/early luteal phase (approximately D13 to D18 of the menstrual cycle). The study is conducted on volunteers. The main question it aims to answer is : Is there an effect of the menstrual cycle on the maximum strength of the internal and external rotators of the shoulder in female athletes who play rugby?

NCT Number	NCT07256483
Lead Sponsor	Clinique Saint Jean, France
Conditions	Shoulder Injuries
Enrollment	16 participants
Start Date	2025-09-01
Primary Completion	2026-02-15 (estimated)
Study Completion	2026-02-15 (estimated)
Updated on ClinicalTrials.gov	2026-02-20