Cycling Through the Menstrual Cycle

With an increase in number of female athletes in sport events, it is becoming more important to gain insight in female related sports physiology. A main difference between male anf female athletes is the menstrual cycle. During the menstrual cycle, female reproductive hormones fluctuate. These hormones are also of influence on endurance, recovery, muscle strenght and mental state. Therefore we hypothesize that training efficiancy, power and motivation to train differ during the menstrual cycle. In case there is a pattern seen during the menstrual cycle, training programs can be individualized taking the menstrual cycle into account leading to more effective training programs.

NCT Number	NCT06634134
Lead Sponsor	Martini Hospital Groningen Collaborators: Antonius Ziekenhuis, Reinier de Graaf Groep, sportgeneeskunde Friesland, sport medisch centrum tilburg
Conditions	Menstrual Cycle-based Periodized Training, Female Athlete Triad, Menstrual Cycle
Enrollment	750 participants
Start Date	2024-10-10
Primary Completion	2026-01-01 (estimated)
Study Completion	2028-01-01 (estimated)
Updated on ClinicalTrials.gov	2025-07-28