Osteoporosis and Exercise: What Builds Bone, What to Avoid, and Where Physiotherapy Fits

If you have osteoporosis, osteopenia, or a recent low-trauma fracture, you have probably been told to exercise and also told to be careful. Both are true, and the tension between them is where most of the confusion lives. This is a plain-language look at what exercise supports bone and reduces falls, which movements deserve care, and the line between what a physiotherapist does and what your physician decides.

Two goals, not one, drive exercise for bone health

Exercise for osteoporosis is aimed at two separate targets, and it helps to keep them apart. The first is bone itself: loading the skeleton hard enough to slow bone loss or add a little density. The second is not breaking a bone: staying steady on your feet so you do not fall in the first place.

These goals call for different kinds of training, and one does not substitute for the other. Bone loading comes from resistance work and, where appropriate, impact. Falls prevention comes from balance and functional practice. A program that does one and skips the other leaves half the job undone. In our clinic, we plan both from the start rather than treating balance as an afterthought.

The reason the second goal matters as much as the first is simple. Most fractures in osteoporosis happen when someone falls. Building a little bone density is worth doing, but not falling is what keeps a hip or a wrist intact this year.

Progressive resistance training is the strongest lever for bone

If one type of exercise earns its place, it is progressive resistance training, meaning strength work that gets gradually harder as you adapt. A Cochrane review of exercise for preventing and treating osteoporosis in postmenopausal women found modest improvements in bone mineral density from exercise, with combination programs producing roughly 3.2% less bone loss at the spine than doing nothing. The effects on density are real but small, and the same review found no reliable effect on fractures, which is worth saying plainly.

Higher-intensity work appears to move the needle more. The LIFTMOR randomized controlled trial, published in the Journal of Bone and Mineral Research in 2018, tested supervised high-intensity resistance and impact training in postmenopausal women with low bone mass. The training group gained lumbar spine bone density while the comparison group lost it, and only one minor adverse event was recorded across the trial. The important caveat is that this was closely supervised training with careful technique, not something to copy from a video.

The UK "Strong, steady and straight" consensus statement reaches a similar place: muscle-strengthening exercise on two or three days a week, worked hard enough to be challenging, is a core recommendation for people with osteoporosis. The message is not "lift lightly to be safe." It is "load meaningfully, with good technique, progressed sensibly."

Impact loading helps some people and not others

Impact means the jolt through the skeleton from activities like brisk walking, jogging, hopping, or jumping. Bone responds to being loaded quickly and forcefully, so a controlled dose of impact can be part of a bone-building program.

Impact is not for everyone, though. The UK consensus advises moderate impact for people who do not have a spine fracture, while people who have had a vertebral compression fracture are steered toward brisk walking rather than jumping. That is a meaningful difference, and it depends on your history and your imaging, which is exactly why the starting point is an assessment, not a blanket rule.

If you have never done impact work or have not exercised in a while, the sensible path is to build tolerance gradually rather than starting with jumps. A physiotherapist can grade the load so tissue and confidence keep pace with each other.

Balance training is how you avoid the fracture

Since most osteoporotic fractures come from falls, the exercise with the clearest payoff for staying unbroken is balance training. A Cochrane review of exercise for preventing falls in older people living in the community found that exercise reduced the rate of falls by about 23%, that balance and functional exercise alone accounted for roughly a 24% reduction, and that programs combining balance with resistance work probably reduced falls by around 34%.

That last figure is the practical takeaway. Balance and strength together beat either one alone, which is the same conclusion the two-goals framing points to from the other direction. Osteoporosis Canada's Too Fit To Fracture recommendations put balance training at two or more days a week, progressed in difficulty over time, alongside strength work on two or more days.

Balance is trainable at essentially any age, and the exercises look unremarkable: standing on a narrower base, heel-to-toe walking, controlled changes of direction, sit-to-stand practice. We cover the fuller picture in our piece on balance and falls prevention for older adults.

The real caution is loaded, end-range forward bending

Most exercise is safe with osteoporosis. The movement pattern that draws the clearest warning in the literature is repeated or loaded end-range spinal flexion, meaning bending the spine forward, especially with weight or under load. Case reports describe vertebral compression fractures developing after this pattern in people with fragile bone, and the risk climbs when forward bending is combined with rotation and load.

This does not mean you can never bend forward. It means how you bend matters. The UK consensus advises avoiding postures with a high degree of spinal flexion, particularly weighted forward bends. Osteoporosis Canada frames the everyday version well: bend at the hips and knees rather than rounding through the spine, and keep movements slow and controlled. In practice that shifts the target of strength work toward the muscles that hold you upright, the back extensors, rather than repeated sit-up-style trunk flexion.

The point of naming this is not to make you afraid of movement. Fear of moving is its own problem, because avoiding activity weakens the very muscles that keep you steady. The goal is a program built so the hard loading goes where it helps and away from the one pattern that carries avoidable risk.

Where physiotherapy fits and where it does not

This is the line that matters most on a page like this. Diagnosing osteoporosis and prescribing medication such as bisphosphonates sits with your physician, not with a physiotherapist. Bone density testing, fracture-risk assessment, and any decision about drug treatment are medical decisions, and nothing here changes that.

Physiotherapy stays in the movement lane. In BC, physiotherapists are regulated by the College of Health and Care Professionals of BC (CHCPBC), and our scope here is exercise, load progression, balance training, posture, and safe movement patterns. A physiotherapist can assess your strength and balance, build a resistance and balance program you can actually do, teach the hip-hinge bending pattern, and adjust the plan if you have had a fracture. Kinesiologists, who are not a regulated college in BC, often deliver the supervised strengthening and progression once a plan is set.

Osteoporosis Canada's own recommendations point people toward a physiotherapist, kinesiologist, or exercise physiologist for exercise selection, intensity, and progression, especially after a recent fracture or at high fracture risk. That is precisely the handoff we work within: your physician manages the diagnosis and any medication, and we help you exercise in a way that supports bone and lowers the odds of a fall.

If you are unsure where to start, an assessment is the practical first step. A physiotherapy assessment lets us test your strength, balance, and movement directly and build a program around what we find, rather than around a generic handout. Coverage and booking details are on our rates and FAQ page. If joint pain around menopause is part of the picture, our note on menopause-related joint pain may help too.

This article is general information, not personal medical advice. A regulated practitioner can confirm whether the patterns described apply to you.

Frequently asked questions

What is the best exercise for osteoporosis?

There is no single best exercise. The evidence supports pairing progressive resistance training for bone with balance and functional training to prevent falls, done a few days a week. Each addresses a different goal, and combining them lowers fall risk more than either alone.

Can exercise reverse osteoporosis?

No. Exercise can slow bone loss and produce modest gains in bone density, but a Cochrane review found the effects on density were small and did not reliably reduce fractures on their own. Its larger value is keeping you strong and steady so you are less likely to fall, and it works alongside any medical treatment your physician prescribes.

Are there exercises I should avoid with osteoporosis?

Be careful with repeated or loaded forward bending of the spine, especially bending combined with twisting under load, which case reports link to spinal fractures in fragile bone. Most other exercise is safe. Bend at your hips and knees rather than rounding your back, and have a physiotherapist check your technique if you are unsure.

Is it safe to lift weights if I have osteoporosis?

For most people, yes, and meaningful resistance training is one of the better tools for bone. The high-intensity training studied in the LIFTMOR trial was closely supervised with careful technique, so the safe route is to build up gradually with guidance rather than lifting heavy unsupervised.

Should I see a physiotherapist or my doctor about osteoporosis?

Both, for different things. Your physician diagnoses osteoporosis and decides on any medication, while a physiotherapist builds and supervises a safe exercise and balance program. The two roles work together and do not replace each other.

Can I still walk and stay active with a spinal fracture?

Usually yes, but the plan changes. Guidance steers people who have had a vertebral fracture toward lower-impact activity like brisk walking rather than jumping, and toward careful loading. The specifics depend on your history and imaging, so this is a case to plan with your physician and a physiotherapist rather than from a general rule.

Sources

• Exercise for preventing and treating osteoporosis in postmenopausal women, Cochrane Database of Systematic Reviews (Howe et al.)
• Exercise for preventing falls in older people living in the community, Cochrane Database of Systematic Reviews (Sherrington et al., 2019)
• High-Intensity Resistance and Impact Training Improves Bone Mineral Density and Physical Function in Postmenopausal Women With Osteopenia and Osteoporosis: The LIFTMOR Randomized Controlled Trial, Journal of Bone and Mineral Research (Watson et al., 2018)
• Strong, steady and straight: UK consensus statement on physical activity and exercise for osteoporosis, British Journal of Sports Medicine (2022)
• Too Fit To Fracture: exercise recommendations, Osteoporosis Canada
• College of Health and Care Professionals of BC (CHCPBC)