Female Sex Hormones and Gluteus Medius Activity: A Pilot Study of Hormonal Associations

Objectives Women are at increased risk of anterior cruciate ligament injury and hormonal fluctuations during the menstrual cycle have been proposed as a potential contributing factor. However, evidence linking hormonal variation to neuromuscular control remains limited. Given the protective role of the gluteus medius in frontal plane knee stability, this pilot study aimed to investigate associations between sex hormone concentrations and gluteus medius activation and strength. Methods Ten eumenorrheic women (age 24. 2±4. 73 years, training volume 407±183. 91 min/week, mass 62. 99±7. 93 kg, height 164. 83±5. 82 c…