Why Resistance Training Becomes Non-Negotiable in Perimenopause

Many women come to us not because something is visibly wrong, but because something feels off. Strength has quietly declined. Recovery takes longer. Body composition is shifting despite no significant changes in diet or lifestyle. Activities that once felt effortless now require real effort.

The instinct is to blame hormones — and hormones certainly play a role. But there's another piece of the picture that rarely gets enough attention.

Muscle.

In June 2026, the American College of Sports Medicine (ACSM) published a comprehensive Position Stand reviewing 137 systematic analyses involving more than 30,000 participants. The conclusion was clear: resistance training meaningfully improves muscle strength, muscle size, power, balance, gait speed, and multiple measures of physical function — across a wide range of women, training styles, and fitness levels.

For women approaching or in perimenopause, this isn't just an athletic finding. It's a clinical one.

Muscle Is a Longevity Tissue — Not Just a Fitness Metric

Most conversations about building muscle still center around appearance. And while body composition is a valid goal, muscle is far more valuable than how it looks in the mirror.

Muscle is one of the body's primary reserve tissues. It supports movement, balance, and metabolic function. It helps maintain independence. It contributes to physical resilience during illness, injury, and aging. And once lost, it becomes significantly harder to rebuild.

The ACSM review found that resistance training improved not only strength and muscle mass, but also balance, gait speed, chair stand performance, and reaction time. These are not abstract fitness metrics. They reflect something much more meaningful: how well a woman moves through her life.

What Resistance Training Improves (Per ACSM 2026 Position Stand):

• Muscle strength and power

• Muscle size and mass (hypertrophy)

• Balance and fall prevention

• Gait speed and mobility

• Chair stand and floor-rise performance

• Overall physical function and independence

Can you climb stairs without gripping the railing? Get off the floor without assistance? Carry luggage? React quickly enough to catch yourself when you slip? These are healthspan outcomes — and resistance training is one of the most evidence-based ways to protect them.

"The women who maintain strength and independence in their seventies are often the same women who invested in their muscle health in their forties."

Why Perimenopause Changes Everything

Perimenopause is commonly framed as a hormonal transition. And it is. But it's also a musculoskeletal one — and that part rarely makes it into the conversation.

This is often the decade when women first notice changes in strength, recovery, and body composition. It's not imagined. Estrogen plays a direct role in muscle protein synthesis. As estrogen levels fluctuate and decline, the body's ability to build and maintain muscle becomes less efficient. Fat distribution shifts. Recovery feels less predictable. Strength may gradually decline if not intentionally preserved.

Here's what matters most: functional decline rarely begins suddenly in older age. The trajectory starts much earlier.

The women who are strong, mobile, and independent in their 70s and 80s are typically the women who made deliberate choices about their muscle health in their 40s and 50s. Resistance training offers a real opportunity to influence that trajectory — beginning now.

"Estrogen doesn't just regulate your cycle. It supports muscle protein synthesis. When it fluctuates, your body's ability to maintain muscle changes too."

The Good News: Many Approaches Work

Fitness culture has a tendency to overcomplicate things — to suggest that results depend on finding the perfect program, the ideal split, the exact right sequence. The ACSM review tells a different story.

One of the strongest themes throughout the research is that many forms of resistance training produce meaningful results. Traditional weight training works. Elastic band training works. Home-based resistance programs work. Circuit training works. The body is remarkably responsive across a wide variety of approaches.

For women who feel intimidated by complicated programming — or who simply don't know where to start — this is important. The goal is not perfection. The goal is consistency.

What the Evidence Recommends

Based on the ACSM Position Stand, a practical starting framework for women in perimenopause includes:

Practical Resistance Training Guidelines (ACSM 2026):

• Train 2–3 days per week, covering all major muscle groups

• Perform 2–3 sets per exercise with challenging loads

• Train through a full range of motion whenever safely possible

• Progressively increase resistance over time

• Aim for 10+ weekly sets per muscle group if muscle growth is a priority

• Training to complete failure is not required — sustainable effort is sufficient

That last point is worth underscoring. Women do not need to exhaust themselves in every workout to see meaningful results. This is particularly relevant during perimenopause, when recovery capacity often feels different than it did in earlier decades. A challenging but sustainable approach is often the most effective one.

Don't Overlook Power — It Declines Before Strength Does

Most conversations about resistance training focus on strength. But clinically, power may be just as important — and it's the piece most women never hear about.

Power is not the same as strength. Strength is how much force your muscles can produce. Power is how quickly they can produce it. That speed matters enormously in real life. It's what allows you to catch yourself before a fall. To react fast enough when you slip on a wet floor. To recover your balance before the moment passes.

Here's what makes this especially relevant for women in perimenopause: power tends to decline before strength does. That means many women are experiencing a loss of functional capacity before they ever notice a change in how much they can lift.

The ACSM Position Stand found that power adaptations were enhanced specifically by using moderate loads and moving them with speed and intention during the lifting phase of an exercise. Not maximal weight lifted slowly — but deliberate, controlled power in the upward movement.

This doesn't mean every woman needs to pursue Olympic lifting or explosive training. It means that how you move the weight matters — not just how much. Lifting with purpose, rather than just going through the motions, directly trains the quality of muscle contraction that protects balance and physical independence as we age.

Why Power Matters More Than Most Women Know:

• Power declines earlier in life than strength — often before women notice it

• It governs balance recovery, reaction time, and fall prevention

• Trained by moving moderate loads with speed and intention on the lift

• Does not require heavy weights or explosive exercises to improve

• One of the most clinically significant markers of functional independence with age

The Hormone and Muscle Connection — Where Clinical Care Comes In

Exercise is one side of the equation. But for many women in perimenopause, resistance training alone doesn't fully address what's happening internally.

Declining estrogen affects more than the menstrual cycle. It influences bone density, cardiovascular health, cognitive function, sleep quality — and yes, the body's ability to build and retain muscle. Women who are experiencing significant perimenopausal symptoms may find that hormone support creates the internal environment where exercise can actually do its job more effectively.

At Monaco Aesthetics & Wellness in Bakersfield, CA, we take a whole-person approach to women's health. That means looking at aesthetics, hormones, and wellness together — not in isolation. For women noticing changes in body composition, strength, energy, or recovery that don't seem proportionate to their lifestyle, a hormone consultation is often a meaningful next step.

Our providers can assess where you are in your transition, discuss whether hormone therapy may be appropriate for your situation, and help you build a plan that supports your long-term health — inside and out.

Aging Gracefully Means Staying Strong

The conversation around perimenopause tends to focus on what's being lost. Declining hormones. Changing metabolism. Shifting body composition. It can feel like a long list of things slipping out of reach.

The ACSM Position Stand offers a different perspective — and it's an important one. Muscle remains remarkably adaptable. Strength remains trainable. Physical function can be improved, regardless of where a woman is starting from.

The goal isn't to stop aging. It's to age with as much strength, capability, and freedom as possible — to protect the quality of life that matters most to you, for as long as possible.

Resistance training is one of the most consistently supported tools for that goal. And it works best when it's part of a broader picture of health — one that includes honest conversations about hormones, nutrition, body composition, and what your body actually needs right now.

If you've been noticing changes and wondering what to do next, we'd love to talk.

Frequently Asked Questions

Is it too late to start resistance training in perimenopause? No — and this is one of the most important points from the ACSM research. Muscle remains trainable at any age and stage. Women who begin resistance training during perimenopause see meaningful improvements in strength, balance, and physical function. Starting now matters far more than when you start.

How does perimenopause affect muscle loss? As estrogen levels fluctuate and decline during perimenopause, the body's ability to build and maintain muscle becomes less efficient. This is a biological process — not a reflection of effort. Resistance training is one of the most effective tools for counteracting this decline and preserving muscle mass.

Can hormone therapy help with muscle loss during perimenopause? Estrogen plays a direct role in muscle protein synthesis, so declining levels can make it harder to build and retain muscle. For some women, hormone therapy may help create a more favorable internal environment for maintaining muscle mass and responding to exercise. At Monaco Aesthetics & Wellness in Bakersfield, CA, our providers can assess whether hormone support makes sense for your individual situation.

What type of resistance training is best for women in perimenopause? The ACSM research is clear that many approaches work — traditional weights, resistance bands, circuit training, and home-based programs all produce meaningful results. The most important factor is consistency. Start with 2–3 sessions per week covering all major muscle groups, and progressively increase the challenge over time.

Where can women in Bakersfield, CA get support for perimenopause symptoms? Monaco Aesthetics & Wellness offers hormone consultations, wellness services, and personalized care plans for women navigating perimenopause and menopause in Bakersfield, CA. Contact us at (661) 456-2044 or book a consultation at www.monacoaw.com.

Your Hormones and Your Strength Are Connected.

If you're experiencing perimenopausal changes — in energy, body composition, recovery, or strength — a wellness consultation is a meaningful first step. We'll look at the full picture and help you build a plan that supports your long-term health.

BOOK A CONSULTATION → https://www.monacoaw.com

Monaco Aesthetics & Wellness · 9510 Flushing Quail Rd, Ste 122, Bakersfield, CA · (661) 456-2044

Source: Currier, B. S., D'Souza, A. C., Fiatarone Singh, M. A., et al. (2026). American College of Sports Medicine Position Stand. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews. Medicine & Science in Sports & Exercise, 58(4), 851–872. Referenced via Lexi Yoo, NP (lexiyoonp.substack.com).

Disclaimer: This content is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare professional regarding your health, exercise routine, or medical care. Individual results vary.