APEX PWR  |  Female Fitness

Strength Training for Women and Bone Density: What Perimenopause Actually Does to Your Skeleton

Most of the bone health advice aimed at women has not moved in thirty years. Take calcium. Drink milk. Go for a walk. None of that is wrong exactly, and the walking part turns out to be better supported than fitness facilities like ours usually admit. What it misses is the part that actually determines outcomes, which is timing.

Bone loss through the menopause transition does not arrive as a slow, even slide you can start worrying about at sixty. It arrives in a burst. And the burst happens during a stretch of years when most women are told nothing is wrong, because nothing feels wrong.

Bone Loss Is Silent, and That Is the Whole Problem

There is no sensation attached to losing bone mineral density. No ache that builds, no stiffness that warns you, no symptom you could reasonably be expected to notice. A woman can move through the single fastest period of bone loss in her life while feeling entirely normal and getting entirely normal results at an annual physical.

The signals that do eventually show up are late ones:

• Loss of height over a period of years
• A forward curve developing in the upper back
• Bone pain, as distinct from joint or muscle pain
• A fracture from a fall that should not have been enough to break anything

By the time any of those appear, the loss that produced them happened years earlier. That is not a reason for alarm, and it is not a reason to assume the worst about your own skeleton. It is the reason measurement exists.

What the Menopause Transition Does, and When

The best longitudinal data on this comes from the Study of Women's Health Across the Nation, known as SWAN, which has followed a large multi-ethnic cohort of women through the menopause transition since the late 1990s. SWAN is useful here precisely because it measured the same women repeatedly rather than comparing different women at different ages.

Now put those three findings together with one more fact about how menopause is defined. The final menstrual period is identified retrospectively, confirmed only after twelve consecutive months without a period. Which means the window SWAN describes, opening a year before that event and running three years, is typically already open, and often most of the way through, by the time a woman can say with any confidence where she is in the process.

What the Numbers on a Bone Density Report Mean

Bone density results come back as a T-score, which compares your bone mineral density against a healthy young adult reference. The World Health Organization diagnostic categories are defined on this number:

Two things worth knowing about that table. The first is that these categories are defined on site-specific measurement of the lumbar spine and the hip. The total body bone number that prints on a body composition scan is a different measurement and is not what the categories were built on. We wrote a full piece on that distinction in bone density versus body composition scanning if you want the detail.

The second is that a T-score is a category boundary rather than a verdict on your life. Plenty of women sit in the low bone mass range and go on to live without ever breaking anything, because bone density is one input into fracture risk and the other inputs are muscle, balance and whether you fall in the first place.

Why "Just Walk" Is an Incomplete Answer

We published something last month that argued against our own commercial interest, and it is worth repeating here because it sets up the part that follows.

A September 2026 network meta-analysis in the BMJ pooled 124 randomized trials covering 18,429 adults aged 40 and over, and found that brisk walking and jogging ranked highest overall for bone mineral density outcomes. Not resistance training. Benefits began showing up around 600 MET-minutes per week, roughly two to three hours of brisk walking. We run a gym. We sell strength training. We published that anyway.

So walking counts, and it counts more than we expected. What it does not do is reach every part of the skeleton, and this is where specificity matters more than almost anything else in this article.

Bone adapts where it gets loaded, and nowhere else

Bone is living tissue that responds to mechanical stress by remodeling. The stress has to actually arrive at the site in question. A 2024 modeling study looked at what common activities do to hip contact force relative to ordinary walking, and the results reorganized how we program:

The two-footed jumping protocol that circulates every January as a bone-building hack delivers less hip loading than a walk does, by this modeling. Land on two legs and you split the force and absorb it symmetrically. Land on one and the hip takes the whole thing and has to stabilize against it sideways, which is the input bone responds to.

The spine is a separate problem again. Jumping of any kind does very little for lumbar spine bone density. The spine responds to heavy axial load, meaning weight traveling down through it. The LIFTMOR trial is the cleanest demonstration we have: heavy resistance training above 80 to 85 percent of a one-rep maximum, five sets of five, produced roughly a 2.9 percent gain in lumbar spine bone density against a 1.2 percent loss in the control group. Worth noting the scope: LIFTMOR enrolled postmenopausal women with low bone mass, so the result speaks most directly to that group rather than to women earlier in the transition.

What Actually Belongs in a Program

Translating the above into something a woman in her forties or fifties can act on:

• Load that is genuinely heavy. Sets in the range of four to six repetitions with a weight that makes that range honest. Light weights for high repetitions build other qualities, and bone is not reliably one of them.
• Axial loading for the spine. Weight travelling down through the trunk. Squat and deadlift patterns, loaded carries, trap bar work.
• Unilateral and impact work for the hip. Single-leg loading, and running or hopping on one leg where joints and training history allow it.
• Protein sufficient to support the muscle doing the loading. Our nutrition team works with clients on an individual target rather than a blanket number.
• Vitamin D status worth knowing. Deficiency is common in the Pacific Northwest for obvious reasons. This is a conversation for your physician and a blood test rather than a guess at a dose. If you do supplement, our clients get a lifetime 25% off pharmaceutical-grade Thorne products.
• Progression over time. Bone remodels slowly. A realistic gain at the hip is one to three percent across six to twelve months, which is why bone is rescanned annually rather than every eight weeks.

One thing you will notice is absent from that list. Hormone therapy comes up constantly in this conversation, and there is a real evidence base behind it for bone. It is also a prescription decision that belongs with your physician, and we are a training and testing facility rather than a prescribing one. We will tell you plainly when something sits outside our lane, and that sits outside our lane.

If you are starting from a long way back, that is a normal place to start from. Coach Nicole does most of our work with women navigating this stage, and her approach to perimenopause strength training is written up separately.

Who Reads Your Results

This matters more than it sounds like it should. The usual route to a bone density scan runs through a referral appointment with your physician, then the scan, then a second appointment to hear what it said. Two visits, two copays, and a wait at each end.

At APEX the physician review is part of the scan. You can skip the referral visit and the follow-up visit if you prefer.

We do want to be clear that this is offered as a complement to your own care rather than a replacement for it. We encourage a collaborative approach and are glad to be in touch with your provider, or to have you share your results with them, so the information sits in your record where you actually receive care. If you have a diagnosed bone condition or a history of fracture, your physician should be in that loop.

Where to Start

If you train with us already, this is simpler than you might think: DEXA scanning is included for clients in group strength training and personal training. The people training here are working against measured data rather than an estimate, and that is deliberate.

If you are not training with us, the scan stands on its own. Both scans run on the same machine at our Tigard facility and are commonly done back to back in a single visit, five days a week including Saturdays.

Frequently Asked Questions