Sciatica
Sciatica exercises: the strengthening half
Stretching calms a sciatic leg down. Strengthening is what stops it coming back. They are different jobs and this page is the second one.
Clinically reviewed by Lee Albert, NMT · 8 August 2026
This page is not the stretching page, on purpose
Vinys has a separate page of sciatica stretches, and it is the one to start with if the leg is currently loud. Stretching and gentle movement are what settle an irritated nerve down in the short term. This page is the other half: the strengthening work that changes how much your back can take before it complains again.
Doing them in the wrong order is the common mistake. Strengthening into a leg that is already shouting tends to go badly. Stretching forever without ever building tolerance tends to go nowhere. Most people want the stretching page first and this one a week or two later.
Slow, still and low is the whole method here
Every movement below holds the spine in one position while the arms or legs move. That is deliberate and it is the part with the best evidence behind it. Work measuring spine load across back exercises found that extending one leg while the trunk stays still produces a low load on the spine with only a mild demand on the back muscles, which is exactly what you want when a nerve is involved.
It also means these are entry level. Electromyography work puts the whole quadruped family below half of maximum muscle activation, well under prone back extension work. That is not a criticism of them, it is the reason they are safe to start with, and it is why the sequence is ordered the way it is rather than by how hard something looks.
What to watch while you do them
The useful signal is the leg, not the back. Some ache in the back muscles while working is ordinary. Symptoms that spread further down the leg than where they started are the signal to stop that movement and go back to the one before it.
The AAOS spine programme puts it plainly as a standing rule: you should not feel pain during an exercise, and if you do, speak to your doctor or physical therapist. That is a better rule than pushing through, and it is the one this page follows.
Honest about what this does and does not do
The Cochrane review of motor control exercise for long-standing low back pain found clear improvements in pain and function against doing little, but no advantage over other kinds of exercise. Its own conclusion is that the choice of exercise should come down to preference, cost and safety rather than one type being better.
So the honest claim is this: these movements work, they are not magic, and something else you would actually keep doing would work about as well. What they have going for them is that they are low load, they need no equipment, and they scale down a long way when the leg is having a bad week.
The sequence
- 1
Dead bug, arms only · 8 to 10 each side, slowly
The starting point, and the one to stay on for longer than feels necessary. Feet stay down, only the arms move, and the job is keeping the lower back exactly where it is.
- 2
Dead bug, bent knee · 8 to 10 each side
The legs join in without straightening, which keeps the leverage short. If the back lifts away from the floor, go back to arms only rather than pushing on.
- 3
Dead bug, marching · 10 each side
Alternating legs with the trunk held still. Slow is the point. If it can be done quickly it is not being done properly.
- 4
Bird dog, small range · 8 each side, 5 second holds
The quadruped position with barely any movement, which is where the low spine load in the research comes from. Reach only as far as the back can stay flat.
- 5
Bird dog on the forearms · 8 each side, 5 second holds
Down on the forearms, which takes the wrists out and shortens the lever. A good middle step before the full version.
- 6
Bridge, small lift · 10 slow repetitions
Hip extension with the glutes, lifting only a little. A small lift done well beats a high one that arches the lower back to get there.
- 7
Bridge on a block · 60 to 90 seconds
A supported position rather than a lift, so the hips can extend with nothing to hold. Useful on the days the active version is too much.
- 8
Side plank against a wall · 3 holds of 15 seconds each side
The side of the trunk working upright against a wall, which is a fraction of the load of the floor version. This is where side work should start when a leg is involved.
- 9
Plank against a wall · 3 holds of 20 seconds
The whole trunk holding one position with almost no load. Standing means no getting down to the floor, which matters on the stiff days.
- 10
Standing hip abduction · 10 to 12 each side
The outside of the hip, which steadies the pelvis on every step. Easy to fit in anywhere and one of the few here you can do while the kettle boils.
Work down this list rather than across it. Stay on a movement until it is genuinely easy, then add the next one. If symptoms travel further down the leg during any of them, stop that movement and go back to the previous one.
What the research says
Sciatica sits inside the low back pain guidelines rather than having its own exercise prescription, so the sourcing here is about the class of exercise and the safety rules, not about a sciatica-specific protocol.
The American College of Physicians makes a strong recommendation that people with chronic low back pain start with non-drug treatment, and names exercise, yoga and motor control exercise among the options. NICE, which covers low back pain and sciatica together, advises self-management including encouragement to continue normal activities, and to consider a group exercise programme chosen around the person's needs, preferences and capabilities.
On this specific family of movements, a 1998 study measuring lumbar load and trunk muscle activity across back extensor exercises found single leg extension with the spine held isometrically produced low spine load and a mild extensor challenge, and described it as low risk for initial extensor strengthening, with the opposite arm added increasing the demand. A 2008 electromyography study places quadruped arm and leg raises, bridging and side bridging below 50 percent of maximum voluntary contraction, against 77 percent and above for prone lumbar extension, which is why these are presented as a starting progression rather than as a strong back workout.
On effect, the Cochrane review of motor control exercise pooled 29 trials and 2,431 people, reporting clinically important improvements in pain and function versus minimal intervention and no superiority over other forms of exercise. Only minor or no adverse events were reported across the included trials.
Sources
- 1Qaseem et al., noninvasive treatments for acute, subacute and chronic low back pain, American College of Physicians clinical practice guideline (Annals of Internal Medicine, 2017)
For chronic low back pain, clinicians should initially select nonpharmacologic treatment, with named options including exercise, motor control exercise, mindfulness-based stress reduction, tai chi and yoga.
- 2NICE NG59, low back pain and sciatica in over 16s (2016, last updated 29 July 2026)
Provide tailored self-management advice including encouragement to continue with normal activities, and consider a group exercise programme (biomechanical, aerobic, mind-body or a combination) chosen around the person's needs, preferences and capabilities.
- 3Callaghan, Gunning and McGill, the relationship between lumbar spine load and muscle activity during extensor exercises, Physical Therapy (1998)
Measured spine loading and trunk muscle activity across four back extensor exercises and found that single leg extension with the spine held still produced low spine load and a mild extensor demand, describing it as a low risk option for initial extensor strengthening, with the addition of the opposite arm increasing the challenge.
- 4Ekstrom, Osborn and Hauer, surface electromyographic analysis of the low back muscles during rehabilitation exercises, Journal of Orthopaedic and Sports Physical Therapy (2008)
Quadruped arm and leg raises, bridging and side bridging all produced lumbar muscle activity below 50 percent of maximum voluntary contraction, while prone lumbar extension exercises reached 77 percent and above, placing the quadruped family at the entry level of a progression rather than at the demanding end.
- 5Saragiotto et al., motor control exercise for chronic non-specific low back pain, Cochrane Database of Systematic Reviews (2016), CD012004
Across 29 randomised trials with 2,431 people, motor control exercise produced clinically important improvements in pain and function compared with minimal intervention, but was not more effective than other forms of exercise, and the review advises choosing the type of exercise on preference, cost and safety rather than on superiority.
- 6American Academy of Orthopaedic Surgeons, OrthoInfo, spine conditioning program (reviewed by Daniel K. Park, MD, FAAOS)
Sets out a staged spine programme that includes the quadruped opposite arm and leg raise, cueing a tight abdomen and a flat back, and states as a standing rule that you should not feel pain during an exercise and should speak to your doctor or physical therapist if you do.
- 7NHS, back pain, nhs.uk conditions library
Lists as needing immediate emergency care back pain alongside numbness, tingling or weakness in both legs, loss of feeling around the genitals or anus, changes in bladder or bowel control, changes in genital sensation, chest pain, or onset after a serious accident, and advises staying active rather than resting in bed.
- 8Cleveland Clinic, cauda equina syndrome, health library (last reviewed 2024)
Describes cauda equina syndrome as a medical emergency caused by compression of the nerve roots at the base of the spinal cord, presenting with back pain, weakness and incontinence, and states that acute cases are likely to need surgery within 24 to 48 hours of symptoms beginning.
Common questions
Should I be stretching or strengthening for sciatica?
Both, in that order. Stretching and gentle movement settle an irritated nerve down, which is what the separate sciatica stretches page is for. Strengthening builds how much your back tolerates before symptoms return, which is this page. Starting with strengthening while the leg is still loud is the common way to make it worse.
Are these exercises actually proven to work?
The Cochrane review of motor control exercise pooled 29 trials and found clinically important improvements in pain and function compared with minimal intervention, with only minor or no adverse events. It also found no advantage over other forms of exercise, and concluded the choice should come down to preference, cost and safety. So they work, and so would other exercise you would actually keep doing.
Why are they all so small and slow?
Because that is where the safety comes from. A 1998 study measuring lumbar load found that extending one leg while the spine is held still produces low spine load with a mild muscle demand, which is what makes it a reasonable starting point when a nerve is involved. The moment the trunk starts moving to help, the load goes up and the point is lost.
How do I know if I am pushing too hard?
Watch the leg rather than the back. Muscle ache in the back while working is ordinary; symptoms spreading further down the leg than where they started means stop that movement and step back to the previous one. The AAOS spine programme's rule is that you should not feel pain during an exercise, and to speak to a clinician if you do.
When is sciatica an emergency?
Get emergency care for numbness, tingling or weakness in both legs, loss of feeling around the genitals or anus, or any change in bladder or bowel control. The NHS lists these as needing immediate attention, and Cleveland Clinic describes cauda equina syndrome as an emergency where acute cases are likely to need surgery within 24 to 48 hours. Do not work through any of these.
How long before this makes a difference?
No honest answer to that exists as a number, and the sources do not give one. What the guidelines do say is to keep moving rather than rest, and to pick something you will keep doing. Consistency at a level that does not flare the leg beats intensity every time here.
Stop and get urgent care for weakness or numbness in both legs, loss of feeling around the saddle area, or any change in bladder or bowel control. Speak to a clinician before starting if symptoms followed a fall or accident, if you feel unwell with them, or if the pain is worse at night or at rest. Stop and speak to a clinician if a movement brings on sharp pain, dizziness, or symptoms that travel down an arm or a leg, and seek urgent care for any loss of bladder or bowel control or numbness around the saddle area.
Also called sciatica exercises, exercises for sciatica, sciatica strengthening exercises, core exercises for sciatica, sciatica exercises at home, best exercises for sciatica. Movements are drawn from the clinically authored Vinys library. This page is general movement information, not medical advice, and it is not a diagnosis. How the method works.