Why Strength Training is Essential for Women over 40

Trainer Lauren from Coreplex Fitness in Kettering training female client with strength based movement.

For decades, strength training was considered a “man’s activity.” The free-weight area of most gyms was dominated by young men chasing bigger biceps, while women were often directed toward cardio machines and light weights for "toning"...

That narrative has finally started to change.

In recent years, we’ve seen a major shift in fitness trends. Women are lifting weights, and for very good reason. Research now clearly shows that strength training is one of the most powerful tools for female health, especially for women over the age of 40. So what do we know now that we didn’t before? Why has the fitness world shifted from #HIIT to #Strength? What actually defines strength training? Are the days of chasing “skinny” finally behind us?

I believe they are, I hope they are, and here's why:

What We Know Now: Why Strength Training Matters More After 40

Think of Rosie the Riveter, the timeless symbol of female strength. Today, this image is more relevant than ever!

Muscle is the key to nearly every system in the female body. And for women over 40, maintaining and building muscle isn’t optional, it’s essential.

Here’s what increased muscle mass can do:

• Preserve bone density

• Boost metabolism (burn calories)

• Improve hormone regulation

• Lower Cortisol (stress hormone)

• Increase joint stability

• Reduce systemic inflammation

• Improve confidence and body composition

  
  

Let’s break these down:

Bone Density: Protect Your Framework

Many women are surprised to learn that bone density loss begins as early as the 30s, with accelerated loss during menopause. Up to 20% within the first 5–7 years in fact.

So how does strength training help?

Muscles attach directly to bones. When a muscle contracts, it pulls on the bone, creating stress. That stress against the bone is exactly what signals the body to maintain or increase bone density.

When resistance is added (dumbbells, barbells, cables, bands), the stimulus becomes even stronger. The bone is forced to adapt by retaining density and, in some cases, becoming stronger.

This is why strength training is one of the first interventions prescribed for bone loss and osteoporosis. Walking and cardio machines alone are not enough resistance to create necessary stress against the bone.

Metabolism: Why Muscle Burns More Calories

Metabolism determines how your body uses calories (energy). Calories are often compared to gasoline, fuel that keeps the body running.

Guess what is one of the largest users of that fuel? Muscle tissue.

Muscle requires energy not only to move, but to maintain itself. The more muscle you have, the more gasoline your body needs, even at rest.

Strength training builds muscle. More muscle increases daily calorie burn, shifts energy usage away from fat storage, and supports long-term weight management. This includes while you're sleeping! More muscle = weight loss during sleep?! Yep.

Hormones: Balance After 40

Hormonal changes after 40 are unavoidable—but how the body responds to them is highly trainable.

Strength training has been shown to:

• Increase natural testosterone

• Improve energy, confidence, and libido

• Reduce overall cortisol (the stress hormone)

• Improve estrogen receptor activity in muscles and bones

Cortisol plays a major role in anxiety, inflammation, and fat storage. Muscle loss increases cortisol, while muscle gain helps reduce it.

Strength training also helps the body use estrogen more efficiently, particularly in muscle and bone tissue, helping protect against rapid bone loss during menopause!

What Is Strength Training And How Much Is Enough?

Trainer Chase Meade working with two of his female clients on a strength training program

Strength training is simply defined as moving your body under resistance. This can include bodyweight exercises, free weights, machines, cables, or bands.

Strength training for women should be approached a specific way. Light weights and endless repetitions are not enough to stimulate bone and muscle adaptation. To receive maximum benefit, the body must be exposed to appropriately challenging loads, safely and progressively.

General Guidelines:

• Frequency: 3 or more sessions per week

• Duration: 30–45 minutes

• Intensity: Moderate to high (challenging enough to fatigue muscles within ~6–10 reps, depending on the exercise)

  
  

Best Exercises:

Focus on compound movements (exercises that use multiple muscle groups):

• Squats

• Deadlifts

• Chest presses

• Rows

• Farmer’s carries

• Step-ups or box work

• Jump and Drop Training

  
  

These movements provide the greatest benefit for bone density, hormone support, and overall strength!

Why Professional Guidance Matters

When we work with heavy loads between 6 - 10 repetitions, form becomes imperative. The heavier we lift, the better your form needs to be. These compound lifts that are most beneficial, are also the most dangerous. Watching a video demonstration, is usually not enough. Having an expert present to 'Tell, Show, Do' (3 laws of Personal Training), can prevent injury or improper form. Also, a professional can provide the knowledge of when to say when. They can tell you when to push forward or step back. Even hiring a Personal Trainer to learn the basics of movement first can help greatly in the long run.

Final Thought

The gym culture has shifted. Long gone are the days of "Sculpting" and "Toning". For women over 40, it’s about health, strength, confidence, and longevity.

Strength training isn’t a trend. It’s the foundation.

Chase Meade, Owner of Coreplex Fitness and Personal Training Expert

Chase Meade, Owner of Coreplex Fitness and Expert of Personal Training for Women over 40.

Coreplex Fitness, 1228 East Stroop Road in Kettering Ohio, 45429

937-304-8135

ChaseMeade@CoreplexFitness.com

Book a consultation today @ www.coreplexfitness.com/