Hormonal shifts throughout the menstrual cycle do more than affect mood and energy levels—they may also influence injury risk. For female athletes, these physiological changes could be linked to an increased susceptibility to soft tissue injuries, particularly around the hips. Let’s explore the science behind the menstrual cycle’s impact on hip injury risk.
How Hormones Affect Joint Stability
During a woman’s menstrual cycle, estrogen and relaxin levels fluctuate significantly. These hormones are known to affect connective tissue, including ligaments and tendons. Relaxin, for instance, can increase ligamentous laxity by breaking down collagen structure—this can make joints like the hip more prone to instability during high-impact activities.
For athletes, particularly those in sports that require running, pivoting, or jumping, even subtle changes in joint stability can increase the likelihood of labral tears, soft tissue strains, or overuse injuries in the hip region.
Increased Injury Risk During Ovulation
Recent research suggests that the ovulatory phase, when estrogen and luteinizing hormone peak, may be associated with greater ligament laxity. This can compromise neuromuscular control and balance—factors critical to preventing lower extremity injuries.
While much of the available data has focused on knee injuries like ACL tears, similar risk patterns may apply to the hip due to its structural and functional relationship to the pelvis and lower body mechanics. For example, compromised core and pelvic stability can contribute to increased stress on the acetabular labrum or hip flexors during intense training.
Why This Matters for Performance and Prevention
Understanding the timing and effects of the menstrual cycle is essential for optimizing training, performance, and injury prevention in female athletes. Coaches, athletic trainers, and orthopedic specialists are beginning to incorporate menstrual tracking as part of comprehensive sports medicine programs.
At the American Hip Institute, we recognize that sex-specific factors—including hormonal fluctuations—play a critical role in musculoskeletal health. Our commitment to evidence-based, personalized care ensures that female athletes receive treatment plans that align with their unique physiological needs.
What’s Next in Research and Care?
While current research is still evolving, future studies focusing specifically on hip biomechanics during the menstrual cycle are needed to establish more targeted prevention strategies. In the meantime, awareness, monitoring, and individualized recovery programs remain key.
If you’re a female athlete experiencing hip discomfort or instability, or you’re simply interested in protecting your long-term joint health, we encourage you to consult with the specialists at the American Hip Institute and learn how our team can help support your performance and orthopedic wellness through every phase of your athletic journey.
FAQs
Q1: Can the menstrual cycle affect hip injury risk in female athletes?
Yes. Hormonal fluctuations throughout the menstrual cycle — particularly changes in estrogen and relaxin levels — can affect ligament laxity and joint stability. During phases when these hormones peak, the hip joint may be more susceptible to instability, increasing the risk of labral tears, soft tissue strains, and overuse injuries, especially in sports that involve running, pivoting, or jumping.
Q2: How do estrogen and relaxin affect hip stability?
Estrogen and relaxin influence the structural integrity of connective tissue including ligaments and tendons. Relaxin in particular can break down collagen structure, increasing ligamentous laxity around joints like the hip. When laxity is elevated, the hip joint has less passive stability, placing greater demand on surrounding muscles and the acetabular labrum — particularly during high-impact athletic activity.
Q3: When during the menstrual cycle are female athletes most at risk for injury?
Research suggests the ovulatory phase — when estrogen and luteinizing hormone peak — may be associated with the greatest degree of ligament laxity and reduced neuromuscular control. This combination can compromise balance and pelvic stability, increasing stress on hip structures during intense training and potentially raising the risk of lower extremity injuries including hip labral damage and soft tissue strains.
Q4: Should female athletes track their menstrual cycle for injury prevention?
Yes, menstrual cycle tracking is increasingly being incorporated into sports medicine and athletic training programs as a tool for optimizing performance and reducing injury risk. Understanding which phases may bring greater joint laxity allows athletes, coaches, and specialists to adjust training load, recovery protocols, and movement screening — providing a more individualized and proactive approach to musculoskeletal health.
Q5: What can female athletes do to protect their hips during high-risk hormonal phases?
Key strategies include monitoring training intensity during the ovulatory phase, prioritizing neuromuscular control and stability exercises, strengthening the core and glutes to compensate for reduced passive joint stability, and working with a sports medicine specialist who understands the role of hormonal fluctuations in injury risk. Individualized recovery programs that account for cycle timing can help female athletes train smarter and protect their long-term hip health.