Best Exercises for Bone Health and Osteoporosis

What actually counts as weight-bearing exercise — and why it matters for your bones?

Weight-bearing exercise is any activity you do on your feet where your skeleton supports your body weight against gravity — and it's one of the few things proven to build bone. Bone is living tissue that adapts to the forces placed on it: load it, and it lays down more material; unload it, and it remodels away. That's why the type of exercise matters as much as the amount.

UK guidance from the NHS divides bone-friendly exercise into two categories: high-impact, weight-bearing activity (running, skipping, dancing, aerobics, jumping) and muscle-strengthening (resistance) exercise (press-ups, lifting weights, resistance bands). The Royal Osteoporosis Society puts a number on the impact side: aim for around 50 moderate impacts on most days — jumps, skips, jogs or hops — to stimulate the bones of the hip and spine (Royal Osteoporosis Society).

The practical point is that not all exercise is equal for bone. A brisk swim is wonderful for heart and lungs but does almost nothing for your hip. To build or defend bone density, your feet generally need to be on the ground and your muscles working hard.

How does resistance training build bone density, and what does the evidence say?

Resistance training builds bone by forcing muscles to pull hard on the skeleton, which signals bone to strengthen at the points of greatest stress. This is why it sits at the heart of every modern bone-health exercise guideline.

UK consensus guidance — the Royal Osteoporosis Society-endorsed UK consensus statement in the British Journal of Sports Medicine — recommends muscle-strengthening exercise on 2–3 days a week at roughly an 8–12 repetition maximum (a weight you can lift 8–12 times before fatigue), building to 3 sets per exercise (British Journal of Sports Medicine UK consensus statement). A 2023 position statement agreed, grading resistance training at 50%→85% of one-rep-max, 2–3 days a week, as the highest level of evidence (Evidence I, Grade A) for managing osteoporosis (Position statement, 2023).

The most striking single trial is LIFTMOR, published in the Journal of Bone and Mineral Research in 2018. Postmenopausal women with osteopenia or osteoporosis did just 30 minutes of supervised high-intensity resistance and impact training, twice a week, for eight months (five sets of five reps at more than 85% of their one-rep-max). The result: lumbar spine bone density rose 2.9% in the training group versus a 1.2% fall in controls (p<0.001), and femoral neck density rose 0.3% versus a 1.9% fall (p=0.004) (LIFTMOR trial, JBMR 2018). Compliance was around 92%, and the only notable adverse event was a single episode of lower-back spasm — a reminder that even heavy training can be done safely when supervised and properly progressed.

A 2025 systematic review and meta-analysis adds weight to this. Pooling 22 randomised controlled trials and 1,051 participants, it found that combined exercise produced a meaningful improvement in total-body bone density (standardised mean difference 0.52) and at the femoral neck (SMD 0.49), alongside favourable shifts in bone-turnover markers (Frontiers in Physiology, 2025).

Does swimming or cycling protect your bones? (The answer surprises most people)

No — and this catches a lot of active people off guard. Swimming and cycling are superb for cardiovascular fitness, joint-friendly movement and muscle endurance. But for bone, they share a fatal flaw: they're not weight-bearing. As the Royal Osteoporosis Society puts it plainly, "the water or bike holds the weight of your body," so the skeleton never gets the loading signal it needs to grow stronger (Royal Osteoporosis Society). The NHS states it just as directly: "Swimming and cycling are not weight-bearing exercise" (NHS).

The research backs this up. A 2016 systematic review concluded that swimming and cycling do not cause positive effects on bone mineral density. Across the studies reviewed, swimming showed no positive effect on bone mass, and nine studies linked competitive cycling with low bone density (Revista Brasileira de Reumatologia, 2016).

What exercises should you avoid if you have osteoporosis or low bone density?

If you already have osteoporosis or a high fracture risk, the main thing to be cautious with is repeated, sustained or end-range forward bending of the spine. UK consensus guidance specifically advises avoiding sustained, repeated or end-range spinal flexion — movements that round the back fully forward under load, which can place strain on the vulnerable vertebrae of the spine (British Journal of Sports Medicine UK consensus statement).

A 2020 systematic review of safety in osteoporosis exercise found that case reports had linked certain spinal-flexion yoga moves, sit-ups, golf and horseback riding to vertebral fracture risk in higher-risk individuals (Systematic review, 2020). Crucially, that same review was reassuring: 10 of 14 observational studies reported no adverse events, serious events were rare and not attributable to the exercise, and it concluded that people with osteoporosis can safely take part in structured exercise programmes.

So the message isn't "don't exercise" — it's "exercise smart." Most people with low bone density can do far more than they fear, provided high-risk spinal movements are modified and progression is sensible — exactly the judgement that benefits from knowing your bone density first.

How much exercise do you need — and how often — to see a difference in bone density?

The dose with the strongest evidence behind it is resistance training 2–3 days a week, plus around 50 moderate impacts on most days of the week. That combination appears repeatedly across UK and international guidance.

On the impact side, the 2023 position statement grades impact exercise of roughly 10–50 jumps per session, 2–3 days a week, as Evidence I / Grade A — the highest tier (Position statement, 2023), and the Royal Osteoporosis Society frames this for everyday life as about 50 moderate impacts on most days (Royal Osteoporosis Society). On the strength side, the UK consensus statement recommends sessions of around 20–30 minutes at an 8–12 rep maximum, building to 3 sets (British Journal of Sports Medicine UK consensus statement).

A realistic weekly template might look like:

• Resistance training, 2–3 days a week — squats, lunges, press-ups, rows and overhead presses, progressing the load over time.
• Impact work on most days — start with heel drops or gentle hops, building towards around 50 moderate impacts.
• Balance and posture work woven through the week (more on this below).
• Swimming, cycling or walking for fitness — as a complement, not a replacement.

The honest caveat: results are measured in months, not weeks. Bone remodels slowly — which is why the trials above ran eight months or longer, and why consistency beats intensity on any single day.

Does exercise work the same at every age, from your 20s to your 70s?

The principles stay the same, but the priorities shift with age. Before about 30, the body is still building towards its peak bone mass — the maximum bone density you'll ever bank — so impact and resistance exercise in youth pay off for decades. The 2025 meta-analysis found that in women under 30, combined exercise improved bone density at both the lumbar spine and femoral neck (Frontiers in Physiology, 2025).

After menopause, oestrogen decline accelerates bone loss, so the goal shifts to defending the bone you have — precisely the population LIFTMOR studied, with measurable gains from supervised training. In later decades, exercise carries a second, arguably more important job: preventing the falls that cause most fragility fractures. Intensity and exercise selection change with age and bone status, but at no age is it "too late" to benefit. (Bone health also intersects with other treatments — see our guide on weight-loss medications and bone loss.)

Should you know your bone density before deciding which exercises to do?

Yes — knowing your bone density turns generic advice into a programme that fits your skeleton. The same UK guidance that recommends heavy resistance and impact for the general population also flags spinal-flexion movements as higher-risk for people who already have osteoporosis. Without a scan, you're guessing which group you're in.

A baseline measurement does three things: it tells you how hard you can safely push, flags movements worth modifying, and gives you a number to track over time. Because bone changes slowly and silently, this baseline is genuinely valuable — most people have no idea their density is low until a fracture reveals it.

Why a radiation-free REMS scan suits ongoing tracking

Standard DEXA scans use a small dose of X-ray radiation, which makes frequent re-scanning less appealing. REMS (Radiofrequency Echographic Multi Spectrometry) is radiation-free, so it can be repeated safely to monitor how your bone density responds to an exercise programme over months and years. You can read more about how the science works or about our bone health assessment.

You can book a radiation-free bone health assessment, see where we screen across the UK, or explore our full range of screening services.

Can balance and posture exercises reduce your fracture risk even if they don't build bone?

Yes — and this is one of the most underrated parts of any bone-health plan. Most fragility fractures don't happen because bone is weak in isolation; they happen because someone falls. So an exercise that improves balance, coordination and posture can cut your fracture risk even if it never moves the needle on a bone scan.

The 2023 position statement grades balance training as Evidence II / Grade B for fall prevention in people with osteoporosis (Position statement, 2023). Tai Chi is a popular, low-impact option here: a 2024 review including postmenopausal women found that pooled data from seven studies showed a significant increase in vertebral bone density (standardised mean difference 0.37, p=0.03), while changes in serum calcium were not significant (Journal of Orthopaedic Surgery and Research, 2024).

So the fullest picture is a blend: weight-bearing impact and resistance training to build and defend bone, plus balance and posture work to keep you on your feet. The two strategies target different halves of the fracture equation, and the strongest programmes do both.

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This article is part of our bone health series. To choose the right intensity for your skeleton, it helps to know your starting point — book a radiation-free screening or learn about our biodensity assessment.