Also called: Steroid myopathy; glucocorticoid-induced muscle wasting; prednisone or prednisolone weakness
Exercise strongly helps
Strength
Getting up from a chair and climbing stairs become hard within months of starting steroid tablets. The drug switches muscle from building to breaking down, hitting the thighs and shoulders first - and thins bone at the same time.
How common: About 1% of adults take long-term oral steroids; weakness of the hips and thighs develops in most people on higher doses and in about half of long-term users overall
What it is
Glucocorticoids like prednisolone shift the balance in muscle from protein synthesis toward breakdown. The effect falls preferentially on type II fibres in the proximal muscles - the thighs, hips and shoulders - which is why the first symptoms are getting out of a chair, climbing stairs and lifting the arms overhead.
The drug is usually necessary. Nobody is on long-term steroids for fun, and stopping them abruptly is dangerous. So the strategy has to be defending the muscle and bone rather than removing the cause - which is exactly what resistance training does, and it is very rarely offered alongside the prescription.
What it feels like
- Difficulty rising from a chair or a low toilet without using the arms
- Stairs becoming hard, particularly going up
- Difficulty lifting the arms overhead - hair washing, reaching a shelf
- Thighs and upper arms looking thinner while the trunk and face fill out
- No muscle pain, which distinguishes it from most other causes of weakness
What causes it
Most people have more than one of these at once, and they feed each other. Read the
list looking for the two or three that sound like your week rather than for the one
true answer — the ones that describe you are the ones worth acting on.
- Increased muscle protein breakdown
- Glucocorticoids activate the pathways that break down muscle protein and suppress those that build it. The net balance shifts toward loss, continuously, for as long as the dose continues.
- Preferential type II fibre atrophy
- The fast, powerful fibres are affected first and most. This is why power tasks - standing up, climbing, reaching - fail before endurance does.
- Dose and duration
- The risk rises with both. Higher doses produce faster loss, and even moderate doses produce measurable change over months. Fluorinated steroids like dexamethasone are worse than prednisolone.
- Reduced physical activity from the underlying illness
- Whatever needed the steroids usually reduces activity too. The disuse and the drug act on the same tissue in the same direction.
- Insulin resistance and altered fuel handling
- Steroids raise blood glucose and change how muscle uses fuel, which contributes to the loss of muscle quality as well as quantity.
- Bone loss in parallel
- The same drug causes rapid bone loss, fastest in the first months. Weak muscle plus thin bone is the combination behind steroid-related fractures, and both need addressing.
- Low protein intake
- Muscle protein breakdown is increased, so requirements rise. Appetite is often affected by the underlying illness, and intake frequently falls when it should rise.
- Age
- Older adults have less muscle in reserve and more anabolic resistance, so the same dose produces more functional loss.
- Not being warned
- Steroid myopathy is common and predictable, and most people are never told it is coming or that training prevents much of it. The absence of the warning is a genuine cause of the outcome.
Who tends to get it
- Anyone on prednisolone or a similar steroid for more than a few weeks
- People on higher doses, or on fluorinated steroids like dexamethasone
- Older adults, in whom the functional consequence is greatest
- Anyone whose underlying illness has also reduced their activity
- People with repeated steroid courses over years, in whom the effect accumulates
What makes it worse, and what settles it
Makes it worse
- Doing no resistance training during the course
- Bed rest or prolonged inactivity, which compounds the drug effect
- Low protein intake at exactly the point requirements have risen
- Stopping steroids abruptly, which is dangerous and never the answer
- Waiting until the course finishes to start training, by which time much of the loss has happened
Settles it
- Resistance training started at the same time as the steroids, focused on the thighs, hips and shoulders
- Adequate protein, which is more important here than usual because breakdown is increased
- Weight-bearing and loaded exercise, which defends bone as well as muscle
- Discussing dose reduction and steroid-sparing alternatives with the prescriber, which is their decision
- Bone protection - calcium, vitamin D and often a bone-protecting drug, which should be considered from the start
What actually helps
The short version: Glucocorticoids switch muscle from building to breaking down, hitting the fast-twitch fibres of the thighs and shoulders first, and thin bone at the same time. Getting up from a chair and climbing stairs go first. The drug is usually necessary, so the muscle has to be defended rather than the drug stopped
Strength work: Legs: Quads; Glutes: Max; Legs: Hamstrings; Chair Workout if standing work is too hard; Full Body; Shoulders: Deltoids; Back: Lats; Hands, Fingers, Grip - progressive resistance two or three times a week, which is the only thing shown to reverse it while the drug continues
Stretching: Hips: Flexors; Legs: Calves - maintenance
Massage: Not primary
Also worth doing: Protein at every meal; calcium and vitamin D and a bone density scan, because the same tablets cause osteoporosis; ask the prescriber whether the dose can be tapered or given on alternate days; avoid fluorinated steroids if there is a choice
What the evidence says: Resistance and aerobic training prevent and partly reverse steroid myopathy in trials, including a study in transplant recipients where isokinetic training normalized strength on ongoing prednisone. Weight-bearing and resistance exercise is also in the American College of Rheumatology guideline for glucocorticoid-induced osteoporosis.
The names above are the Targets qFIT tracks —
the Muscle Guide explains what each one does, and
Quick Add switches on the Exercises you
already have.
The qFIT routine for this
Ready-made routineStrength & Bone for Aging
qFIT already has this one built. It runs massage first, then stretching, then
strength — the order that works on a body that is already sore — and every
activity in it carries the reason it is there.
The button below opens your Checklist with this routine already selected, so instead
of your whole list you land on just its Categories, Targets
and Exercises, each with its checkbox, ready to tick as you work through
them.
Have more than one problem? Tick yours under My Problems on
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Get it checked if…
Weakness with muscle pain and dark urine, or weakness that is spreading to swallowing and breathing - urgent; a fracture from a minor fall - bone review
And whatever the body part: chest pain or unusual breathlessness on
exertion; a fever alongside the pain; unexplained weight loss; pain that is constant and
unrelated to how you move; new numbness, weakness or loss of bladder or bowel control; or
one calf that is swollen, warm and painful. Any of those, stop and get assessed.
How it usually goes
Muscle strength usually recovers over weeks to months after steroids are reduced or stopped, and the recovery is much faster in people who kept training through it. Training during the course does not prevent all of the loss but it substantially reduces it, and it protects bone at the same time. This is a case where the exercise should start with the prescription rather than after it - and where asking about bone protection at the same time is entirely reasonable.
Prevalence basis: StatPearls corticosteroid-induced myopathy; population prescribing data for long-term glucocorticoid use
Others the same routine covers
These share the Strength & Bone for Aging routine, so the work is the same. If one of them also
sounds like you, that is a reason to expect more from it, not less.
This is general information, not a diagnosis, and it cannot examine you.
If it matches you, use it to ask better questions of a clinician rather than to replace one.