Why Your Injuries Are Changing in Perimenopause (It's Not Just You)
A note on language: "women" in this article refers to menstruating people assigned female at birth. Not everyone this applies to identifies as a woman, you belong here too.
TL;DR
Estrogen isn't just about hot flashes, it directly affects your tendons, ligaments, bones, and muscle recovery.
When estrogen fluctuates or drops, connective tissue gets more lax and less efficient at transferring force → higher injury risk.
Adolescent female athletes are 2–8x more likely to tear an ACL than males, one of several proposed reasons is estrogen's effect on ligament laxity. (Female athletes also face higher ankle injury rates, though by a smaller margin.)
In perimenopause/menopause, declining estrogen is linked to a real, named condition: the Musculoskeletal Syndrome of Menopause (joint pain, sarcopenia, tendon issues, bone loss).
What can help: strength training, impact exercise, more recovery, and a handful of specific nutrients (protein, collagen + vitamin C, calcium + D, omega-3s, magnesium, creatine).
The Napheesa Collier Moment
Anyone catch Life in the W? Watching Napheesa "Phee" Collier talk about her string of injuries after having her daughter, after being someone who was rarely injured pre-pregnancy, sent me down a research rabbit hole.
My acupuncturist and I both have noticed similar patterns with our patients: and my period-tracking app literally has buttons labeled "old injury flare-up" and ‘injury’.
Turns out, estrogen could be the connective thread.
Estrogen 101: The Quick Version
During a normal cycle: Estrogen drops right before and during your period, rises to a peak before ovulation, dips briefly, then rises again for a smaller second wave in the second half of your cycle.
During pregnancy: Estrogen climbs the entire time and peaks in the third trimester. You'll produce more estrogen in one pregnancy than in the rest of your non-pregnant life combined.
We hear a lot about estrogen and bone health. We hear a lot less about this: Estrogen also affects your tendons and ligaments. Fluctuating levels can increase injury risk.
What Estrogen Actually Does to Connective Tissue
The good (muscle and bone):
Supports bone health
Supports muscle protein synthesis
Reduces exercise-induced muscle damage
Speeds up recovery
Helps preserve muscle mass with age
The trade-off (tendons and ligaments): Higher estrogen means more tissue laxity. Sounds flexible and good, but tendons and ligaments need stiffness to transfer force and stabilize your joints efficiently. Too much laxity can mean:
Less explosive power
Less efficient force transfer
Higher ligament injury risk
This is one theory behind why ACL tears spike around ovulation, when estrogen peaks.
Estrogen isn't the whole story, just an underappreciated piece of it. Female anatomy (pelvis width, ACL notch size), landing biomechanics, and neuromuscular differences all play a role alongside hormones. Research on female athletes and hormones is sparse but fortunately is a growing field of research. More is coming, but we're playing catch-up.
Then Menopause Happens
We generally think perimenopause means hot flashes, sleep issues, mood swings, and weight changes (and it does). What gets left out of the conversation is what declining estrogen does to your musculoskeletal system.
As estrogen drops:
Muscle mass decreases
Bone density decreases
Recovery slows down
Connective tissue properties shift
There's an actual clinical term for this now: the Musculoskeletal Syndrome of Menopause.
It includes:
Joint pain and morning stiffness
Bone density loss (osteopenia or osteoporosis)
Muscle loss and weakness (sarcopenia)
Faster progression of osteoarthritis
Tendon and ligament issues, such as frozen shoulder and rotator cuff issues, plantar fasciitis and Achilles problems, and general knee pain
The bottom line: lower estrogen means less collagen regulation, less tendon adaptability, less bone protection, and less muscle support. Your tendons and joints need more support in midlife, not less.
Your Best Defense: Muscle
The research keeps circling back to one thing: muscle is a protective organ. The more you have, the more protected you are.
Muscle:
Stabilizes joints
Protects bones
Reduces injury risk
Improves glucose metabolism
Supports long-term independence
You can't stop the hormonal shift. You can build the tissue that buffers you against it.
What To Do About It
Lifestyle
Strength train. Non-negotiable. (Portland folks, there are lots of options beyond bro-gyms, including functional-movement-focused studios and solid online programs if you're short on time.)
Focus on:
Squats and lunges
Deadlifts and hinges
Push movements
Pull movements
Progressive overload
Add impact exercise. Bone responds to load: hill walking, hiking, jump training, dancing, etc.
Take recovery seriously. Research points to slower tissue adaptation during this life stage.
Prioritize:
Sleep
Actual rest days
Mobility work
Managing total training volume
Fuel your body! Too little muscle and too little energy intake both raise injury risk. Under-fueling impairs hormones, recovery, and bone health.
Nutrition
Protein. Muscle loss accelerates in menopause.
Sources: eggs, Greek yogurt, fish, chicken, tofu/tempeh, beans, protein powder.
Spread across the day, and include it at breakfast.
Collagen + Vitamin C. Vitamin C is required to actually build collagen.
Sources: collagen powder with berries or citrus; bone broth with vitamin-C foods.
Calcium + Vitamin D. Estrogen decline speeds up bone turnover.
Sources: dairy, fortified alternatives, sardines, calcium-set tofu, leafy greens; sun, fatty fish, or supplement for D.
Omega-3s. May help regulate inflammation and support joints.
Sources: salmon, sardines, trout, walnuts, flax/chia.
Magnesium. Supports muscle function, sleep, and bone metabolism.
Sources: pumpkin seeds, nuts, dark chocolate, beans, leafy greens.
Creatine. Solid evidence for muscle strength and lean mass when paired with resistance training.
Dose: 3 to 5 grams per day, creatine monohydrate, taken consistently (timing doesn't matter).
The Takeaway
None of this is about chasing your 20's body back. It's about giving your tendons, joints, and muscles what they actually need right now, in the body you're in today. Start small: pick one nutrient from the list above you're probably under-consuming and build a habit around it this week. Pair it with a strength session and a hike, and you've already made more progress than most people do in a month of guessing.
If you're not sure where to start, or you want a plan that actually fits your body and your life, that's exactly what I help with. Book a free discovery call and let's talk through what nutrition and lifestyle support could look like for you.
Sources
Menstrual Cycle and Sport Injuries: A Systematic Review. PMID: 36833966
Effect of Estrogen on Musculoskeletal Performance and Injury Risk. PMID: 30697162
The Female ACL: Why Is It More Prone to Injury? PMID: 27053841
Sex Differences in Foot and Ankle Sports Injury Rates in Elite Athletes. PMID: 40949538
Creatine in Women's Health: Bridging the Gap from Menstruation Through Pregnancy to Menopause. PMID: 40371844
Impact of Creatine Supplementation on Menopausal Women's Body Composition, Cognition, Estrogen, Strength, and Sleep. DOI: 10.1080/15502783.2025.2533673
Creatine Supplementation in Women's Health: A Lifespan Perspective. PMID: 33800439
ISSN Position Stand: Safety and Efficacy of Creatine Supplementation. Kreider RB, et al., J Int Soc Sports Nutr. PMID: 28615996
The Musculoskeletal Syndrome of Menopause. e-arm.org/journal/view.php?number=4451