If you’ve been told you have osteoporosis or osteopenia, the advice you’re likely to have received is “do weight-bearing exercise but be careful with your spine” — which is correct and almost useless, because it doesn’t tell you which exercises are which. Pilates sits right on that line. Done well, it is one of the best things you can do for a spine with low bone density: it strengthens the muscles that hold the vertebrae upright, improves balance so you don’t fall, and teaches you to bend from the hips instead of the back. Done as a generic mat class, it includes some of the exact movements you should avoid. This guide is about the difference.
Key takeaway: Pilates is good for osteoporosis when it’s modified: favour neutral-spine core work, back extension, hip hinges and standing loading, and avoid loaded spinal flexion (roll-ups, crunches, rolling like a ball) and end-range twists. It improves posture, balance and spinal muscle strength, which reduces fracture risk, but it should sit alongside walking and resistance training rather than replace them.
Pilates is good for osteoporosis when it is adapted to protect the spine. The beneficial elements are neutral-spine core control, back-extension exercises that strengthen the muscles resisting vertebral compression, hip-hinge and supported squat patterns that load the hips and legs, and standing balance work that reduces fall risk. The exercises to avoid are any that flex the spine forward under load — roll-ups, crunches, the hundred with head lifted, rolling like a ball — and loaded end-range twists, because these compress the front of the vertebrae where fractures occur. Sophie Mercer, PMA-certified clinical Pilates instructor, designed an 8-week Osteoporosis protocol of 30 exercises built entirely around spine-safe loading, extension and balance.
Osteopenia vs osteoporosis: why the distinction matters
Both are diagnosed by a DEXA scan. Osteopenia means bone density is below normal but not yet in the osteoporosis range; osteoporosis means density is low enough that fracture risk is significantly raised. The practical difference for exercise is the margin for error. With osteopenia, most Pilates is appropriate with sensible modification of the deepest flexion work. With osteoporosis — particularly if you’ve already had a vertebral fracture — the flexion restrictions become firm rules, and clearance from your doctor with your DEXA result in hand is not optional. Ask specifically: is my spine density low enough that I should avoid all loaded forward bending?
Which Pilates exercises should I avoid with osteoporosis?
Osteoporotic spinal fractures are usually compression fractures at the front of the vertebral body. Forward bending under load — especially with the head and shoulders lifted — puts exactly that pressure on exactly that spot. So the rule is: no loaded spinal flexion, no loaded end-range rotation. In Pilates terms, avoid or substantially modify:
- Roll-up and roll-down (lying and standing versions)
- The hundred with head and shoulders lifted — do it with the head down
- Crunches, chest lifts and criss-cross
- Rolling like a ball, open-leg rocker, seal
- Spine stretch forward and the saw
- Jackknife, roll-over and short spine
- Loaded twists to end range, including seated twists with resistance
Also be careful with anything that combines flexion with a fast or ballistic movement, and with deep forward folds in yoga if you practise both — Pilates vs yoga for back pain touches on the differences.
What should you do instead? Exercises that support bone health
The good news is that the substitutes are not watered-down — they’re the exercises that matter most for a spine with low density.
- Prone back extension — Lie face down, forehead on the backs of the hands or arms by the sides. Lengthen the spine and lift the head and chest a few centimetres, keeping the gaze down. Hold 3–5 seconds, lower. 8–10 reps. Feel: the muscles either side of the spine. Avoid: cranking the neck.
- Standing hip hinge — Hands on a chair back or wall, soften the knees and fold forward from the hips with a long flat back until the hamstrings tighten, then return. 8–10 reps. This teaches the bending pattern that replaces the roll-down in daily life.
- Supported squat or wall sit — Loads the hips and thighs, the other main fracture site. 8–10 reps or 20–30 second holds.
- Heel raises and supported single-leg balance — Fall prevention is fracture prevention. 10–12 heel raises; 20–30 seconds per leg.
- Neutral-spine dead bug and modified bridge — Deep-core work with the spine still: lift one leg at a time without the pelvis tipping; bridge without curling, lifting the hips as one piece. 8–10 reps.
- Four-point kneeling arm and leg reach (bird dog) — Spinal stability and extensor strength. 6–8 per side.
- Wall angels — Posture, thoracic mobility and shoulder-blade strength, which counter the forward rounding that osteoporosis encourages. 8–10 reps.
- Standing side leg lifts — Hip loading and balance. 10 per side.
The weight-bearing exercises for osteoporosis guide covers the broader loading picture, and standing Pilates for seniors gives supported standing progressions.
Is Pilates enough to build bone density?
Honestly, no — not on its own. Bone adapts to relatively high loads and impact, and mat Pilates delivers modest loading. What Pilates does that nothing else does as well is strengthen the spinal extensors, retrain posture, and improve balance and body awareness. Those things reduce the chance of the fall and the forward-bending moment that cause most fractures. Think of it as the foundation that makes walking, resistance training and impact work (where appropriate) safe and effective, and as the part of your programme that protects the spine while the other parts build the bone.
Is a Pilates reformer good for osteoporosis?
It can be excellent, with two conditions: the instructor must know your diagnosis and must know how to modify. Reformer footwork is a supported, loaded squat — ideal for hips and legs. Standing side splits with support, arm work sitting tall, and prone extension on the long box are all appropriate. What must go is the same list as the mat: the hundred with flexion, rolling, short spine, jackknife, and any forward-curling abdominal work. If you’re over 60 and new to the machine, reformer Pilates for seniors covers what to ask a studio.
Getting started safely
- Get your DEXA result and specific clearance from your doctor.
- Tell any instructor your diagnosis before the class begins — not after.
- Start with standing and neutral-spine work; add prone extension early.
- Keep the head in line with the spine throughout; if an exercise asks you to curl up, you’ve found one to skip.
- See a clinician urgently if you develop sudden back pain, a change in height or posture, or any new numbness, weakness, or bladder or bowel changes.
How the Osteoporosis protocol helps
Sophie’s 8-Week Osteoporosis Program is built entirely around this logic — 30 exercises, every one spine-safe, progressing from neutral-spine control and supported standing loading through back-extension strength to confident balance work. There is no roll-up, no crunch and no rolling anywhere in it, so you never have to guess whether a move is appropriate. Alongside it, the 8-Week Over-60 Program suits anyone whose bone density is only mildly reduced, and the 6-Week Posture Correction Program targets the forward rounding that so often accompanies osteoporosis.
This article is for informational purposes only and does not constitute medical advice. Osteoporosis exercise must be guided by your DEXA result and your doctor’s advice; if you have had a vertebral fracture, develop sudden back pain, or lose height, please consult a doctor or physiotherapist before starting or continuing any exercise programme.