Why Strength Training Matters
More After 40

September has a way of pulling us back into rhythm. A renewed focus on planning, a little more structure to the day, a quiet pull to get back to something steadier after summer.

If you're over 40 or in perimenopause, getting back into a routine may not feel quite the same. The workouts you've always relied on suddenly feel different. Maybe you feel sluggish, and you’ve noticed recovery is taking longer. The same effort doesn’t seem to deliver the same results.

That doesn't mean exercise has stopped working. It means your body is changing, and the way you exercise may need to change with it. If a stronger routine is calling you this month, let it include strength training.

As hormone levels shift during perimenopause and menopause, maintaining muscle mass and strength can become more challenging. Strength training becomes less about fitness trends or appearance and more about staying strong, mobile, and resilient as you age.

We sat down with Keeli Stumbo, M.D., a board-certified OB-GYN and hormone specialist at our New Braunfels location, to talk about what's changing after 40.

“The reason your workouts seem to stop working after 40 isn’t because you’re doing them wrong,” she explains. “Shifting hormones can be part of the reason you’re working just as hard but not seeing the same results. Estrogen, testosterone, and progesterone all play a role in maintaining muscle.”

Your Body Is Changing. Your Workout Should Too.

Estrogen does so much more than regulate your cycle. It also plays an important role in maintaining muscle and bone. As estrogen declines through the menopause transition, holding on to muscle can become challenging. This is one reason muscle loss after 40 can become an important part of the conversation around midlife health.

Bone health is changing, too. Estrogen helps protect against bone loss by slowing the natural breakdown of bone. As estrogen levels fall, bone loss can accelerate. Supporting bone density during perimenopause therefore becomes another reason to keep resistance and weight-bearing exercise in your routine.

This is where strength training becomes especially important.

Lifting weights gives your muscles a reason to stay strong and adapt, while also placing healthy stress on your bones. Both the Endocrine Society and The Menopause Society encourage strength and weight-bearing exercise to help support muscle and bone health through midlife and beyond.

The goal after 40 isn't necessarily to exercise more. It's to make sure the exercise you're doing is giving your body what it needs now.

Cardio Alone Is Not Enough

Walking, running, cycling, and other cardiovascular exercise still have a vital place in a healthy routine. But if cardio has always been your go-to, your 40s are a good time to make room for weights, too. Adding resistance training for women over 40 can give your routine another form of stimulus that supports muscle and physical function.

Strength training gives your muscles something cardio alone cannot. Lifting weights challenges them to adapt, rebuild, and stay strong. As you get stronger, gradually increasing the weight you lift can help preserve muscle and support bone health.

And muscle matters far beyond the gym. It supports balance, mobility, metabolism, and your ability to stay active and independent in the years ahead. For women experiencing estrogen-related muscle loss, maintaining muscle through regular resistance exercise can become an especially valuable part of an active lifestyle.

Making Strength Training Work After 40

If a stronger routine is on your mind, focus less on doing more and give your body the right kind of challenge. Strength training after 40 can be built around gradual progress, consistency, and enough recovery to support your changing needs.

• Gradually increase the weight. As you get stronger, adding weight over time gives your muscles a reason to adapt and stay strong.
• Keep the cardio you love. Walking, running, cycling, and other forms of cardio still matter. Just make sure you're making room for strength training, too.
• Give yourself time to recover. Rest, good nutrition, and time between challenging workouts give your body a chance to repair and rebuild.
• Pay attention to what feels different. Changes in energy, strength, recovery, or body composition can be worth discussing with your provider, especially if your usual routine no longer feels like it's working for you.

Supporting Your Body with Hormone Therapy

Strength training is one way to support your body through your 40s, perimenopause, and menopause. But how you move is only part of taking care of yourself through this transition.

Hormones are an important part of the picture. And yes, that includes testosterone.

Estrogen tends to get the most attention during perimenopause, but women have and need testosterone, too. While it's often associated with libido, it plays a unique role in muscle, bone health, energy, and overall well-being.

"Testosterone is great for motivation," Dr. Stumbo says. "It's often the piece that gets left out of the conversation entirely, even though it can be a big part of why you're not feeling like yourself."

At Hormones by Design, we look at the full picture, including estrogen, progesterone, and testosterone, along with your symptoms, health history, and how you're feeling day to day. When it's right for you, personalized hormone treatment can become part of your routine, too, helping support your body through the hormonal changes happening during this stage of life.

This isn't about trying to get your 25-year-old body back. It's about understanding what your body needs now and giving it the support to feel strong, capable, and well for the decades ahead.

Ready to Feel Strong Through Perimenopause?

There is so much life ahead. This is the time to build the strength to fully live it.

For many women, perimenopause exercise is less about chasing a specific number on the scale and more about creating a routine that supports strength, mobility, and long-term health. Resistance training can be one part of that approach.

Whether you prefer to visit one of our five Hormones by Design locations or explore virtual hormone care through Hormones Direct, we're here to help you better understand your hormones and find an approach that's right for you.