Pain guide · Back pain

Lower back pain on the treadmill: incline walking, the rails, running on the belt and what helps

Lower back pain on the treadmill is usually ordinary back pain meeting a longer, steeper or faster session than your back is used to, often with the rails gripped or the slope suddenly high. Walking and running on a belt move your back much as they do outside, and walking is good for back pain: a walking programme nearly doubled the time before back pain came back in a large trial. Where and when it hurts is the best clue: an ache across the lower back that builds through a session is usually ordinary back pain, buttock or leg ache that eases when you lean on the rails or sit is the pattern of spinal stenosis, and a calf ache that goes when you stand still can be narrowed arteries. A flatter, slower belt, your hands free and shorter sessions usually help.

This guide starts with the signs that need help, from a 999 call for numbness around your genitals or bottom, new bladder or bowel trouble, weakness in both legs, or chest pain or breathlessness on the treadmill, to a same-day check through the National Health Service's 111 line (NHS 111) or a general practitioner (GP) for back pain with a fever, after a fall from the belt or with leg weakness that is getting worse. It then maps the causes by where and when it hurts, explains what the studies of incline walking, the rails and treadmill running show, and don't, shows how to change your sessions today, and gives a three-stage plan with a 3D demo of every move, back to the slope, the 12-3-30 and running if you want them.

3-stage exercise plan When to get help 52 sourcesUpdated 28 October 2026

When to get help first

Exercise is for pain that has been checked or is clearly mild and settling.

Get urgent medical help if

Call 999 or go to A&E: loss of feeling or numbness around the genitals or bottom, new trouble peeing or controlling your bladder or bowels, changes in genital sensation during sex or problems with erections or orgasm, or pain, tingling, weakness or numbness in both legs. These are signs of cauda equina syndrome, which needs treating in hospital urgently. Don't drive yourself.
Call 999 or go to A&E: leg pain with numbness around the genitals or bottom, new trouble starting or controlling peeing, not knowing when you need to poo or losing control of it, sciatica in both legs, or weakness or numbness in both legs that is severe or getting worse. These can be signs of cauda equina syndrome, which needs treating in hospital as soon as possible.
Call 999 or go to A&E: back pain with chest pain, or back pain that started after a serious accident, such as a car crash.
Call 999: chest pain that started suddenly, or spreads to your arm, neck or jaw, or your chest feels tight. This could be a heart attack. Do not drive yourself to A&E.
Someone who faints while exercising, or who has fainted and can't be woken within a minute, has chest pain or a pounding, fluttering or irregular heartbeat, or hasn't fully recovered.
Get help from NHS 111: pain or tightness in your chest, neck, shoulders, jaw or arms that comes and goes, often brought on by exercise, stress, emotion or cold and easing after a few minutes' rest. It can be angina, a sign of a heart problem. If you've been diagnosed with angina, get help from NHS 111 too if it feels worse than before, is happening more often, lasts longer or happens when you're resting.
Call 999 or go to A&E if breathing suddenly becomes difficult, if pain in your chest or upper back comes on suddenly with breathlessness or a very fast heartbeat, or if someone passes out. Do not drive yourself. It can be a blood clot that has reached the lungs.
Call 999: sudden, severe pain in the tummy or back, which can come with breathlessness, pale or grey skin, or collapse. It can be a burst abdominal aortic aneurysm, most common in men aged 65 or over and in people who smoke or used to smoke.
Call 999 or go to A&E: a leg that is suddenly cold, pale, numb, weak or very painful. A sudden loss of blood supply to a leg is a vascular emergency.
Call 999: after a fall, you may have hurt your head, neck, back or hip, or you cannot get up.
Same day (NHS 111): back pain after a new, significant injury in the last 7 days, such as a fall from a height (off a box, a bar or rings) or a direct blow to the back.
Same day (GP or NHS 111): back pain and you feel hot, cold, shivery or generally unwell, or severe pain that starts suddenly or is getting worse quickly.
Same day: leg weakness that is getting worse; new leg pain with a history of cancer, HIV, TB or inflammatory arthritis; or leg pain with a fever, feeling unwell, loss of appetite, unexplained weight loss or night sweats.
Same day (urgent GP appointment or NHS 111): new difficulty lifting the front of your foot or toes (foot drop), or a foot that slaps down or catches as you walk, especially if it is getting worse. Weakness in both legs, or with numbness around the genitals or bottom or bladder or bowel changes, is the 999 emergency above.
Contact a GP immediately (or NHS 111 if you can't): burning leg or foot pain that carries on at rest, pale skin, wounds on the feet or legs that do not heal, or toes that go cold, numb, then red or black.
Same day: you have or have had cancer, and new back pain that is severe and doesn't let up, is getting steadily worse, is worse at night and disturbs your sleep, is worse when you cough, sneeze or strain, or comes with tenderness over the spine. Contact your cancer team or GP urgently. With cancer, new weakness, difficulty walking, numbness or bladder or bowel problems are an emergency.
Contact your GP or midwife urgently: back pain in the second or third trimester of pregnancy, or back pain in pregnancy with a fever, vaginal bleeding, pain when you pee, or pain in one or more of your sides (under your ribs). It could be early labour or an infection.

See a doctor or physiotherapist if

Back pain that hasn't improved after a few weeks of looking after it at home, stops you doing day-to-day activities, worries you, or you're struggling to cope.
Pain, tingling or numbness spreading below the knee that isn't settling after a few weeks, is getting worse or stops your normal activities: see a GP.
Pain that is not improving after a few weeks, is getting worse, or is stopping your normal activities.
Buttock or leg pain, heaviness or tingling that comes on when you stand or walk and only eases when you sit or bend forward, or the distance you can walk keeps shrinking: see a GP or physiotherapist (possible spinal stenosis). Leg weakness that is getting worse, or numbness around your genitals or bottom, is urgent (above).
A change in your ability to walk, including balance problems or weakness or heaviness in your legs: see a GP. If it's new or getting worse quickly, contact your GP practice urgently, or NHS 111 if it's closed.
Leg ache when you walk that goes after a few minutes' rest: possible peripheral arterial disease (narrowed leg arteries), especially if you smoke or have diabetes.
Recurring leg pain when you walk or exercise: see a GP, even if you think it's just your age. The NHS says many people mistakenly think this is part of growing older.
Pain that doesn't improve with rest or is worse at night, or pain that is worse when you sneeze, cough or poo.
Unexplained weight loss, or a lump, swelling or change in the shape of your back.
Sudden new back pain after a minor fall, lift, cough or sneeze, from 50 or past the menopause, or if you take long-term steroid tablets; or height loss, a curved spine or a change in posture: see a GP. It can be a spinal fracture.
Back pain that started before 45 and has lasted more than 3 months, especially if it started before 35, wakes you in the second half of the night, comes with buttock pain, gets better with movement or within 48 hours of anti-inflammatory painkillers, or you have or have had arthritis, pain where a tendon attaches to bone (enthesitis) or psoriasis, or a parent, brother, sister or child with spondyloarthritis. These can point to inflammatory back pain (axial spondyloarthritis, such as ankylosing spondylitis). The National Institute for Health and Care Excellence (NICE) asks GPs to refer people with 4 or more of these 9 features to a rheumatologist, and to do a blood test for the HLA-B27 gene marker if exactly 3 are present, referring if it is positive.
Low back or buttock pain on one side that comes on with running, in a distance runner, especially if your periods have stopped or become irregular, you've lost weight or you've had a stress fracture before: stop running and see a GP. It can be a stress fracture of the sacrum, which an MRI (magnetic resonance imaging) scan shows.
A teenager whose back pain is worse arching back and has lasted more than a couple of weeks: get it checked by a GP or sports physiotherapist. It can be a stress fracture of the spine (spondylolysis).
A strain that is getting worse, or isn't feeling better after looking after it yourself: see a GP or physiotherapist. In many areas you can refer yourself to physiotherapy.

Where does it hurt?

Location narrows the likely causes; it does not diagnose.

An ache across the lower back that builds through a session and eases when you stop or flatten the belt, with no leg symptoms

Ordinary back pain, by far the commonest kind in our reading, though no study counts the causes of back pain on a treadmill. A flatter, slower belt with your hands free usually helps.

Read: Back pain →A sudden catch or sharp pain on one side mid-session, sometimes with the muscles locking up

Usually a pulled back muscle or a back spasm, which settles over days to weeks.

Read: Back spasm and pulled back muscle →Worse on a steep slope or when you lean back hanging on the rails, easing when you bend forward, from mid-life

Often labelled facet joint pain and managed like other back pain. That leaning back on the rails brings it on is our reading: no study has measured the back while people hold the rails.

Read: Back pain bending backwards →Buttocks and legs aching, heavy or tingling as you walk, eased only by sitting or leaning forward, usually from 50

The pattern of lumbar spinal stenosis. Symptoms often come on sooner on a flat belt, and people with stenosis walked longer on a slope in a treadmill test.

Read: Lumbar spinal stenosis →An ache in the calf, thigh or buttock after a set distance that goes within a few minutes of standing still

Possibly narrowed leg arteries, more likely if you smoke or have diabetes: see a GP. Holding the rails can let you walk further before it starts, so it can be missed.

Read: Calf pain when walking →Pain down one leg below the knee, with tingling, numbness or weakness

Sciatica, from a nerve in the back; the leg often hurts more than the back.

Read: Sciatica →Low on one side, by the dimple at the back of the pelvis, sometimes into the buttock

Possibly the sacroiliac (SI) joint.

Read: SI joint pain →One-sided low back or buttock pain that comes on with running, in a distance runner

Rarely a stress fracture of the sacrum, more likely if your periods have stopped, you've lost weight or you've had a stress fracture before: stop running and see a GP.

Read: Stress fracture →The groin or buttock with a stiff hip, so socks and car seats are hard

The hip itself: our hip pain when walking guide.

Read: Hip pain when walking →A dull ache across both sides the day after a new incline or 12-3-30 session, easing day by day

Usually muscle soreness, which fades within about a week.

Read: Back pain after a workout →A teenager whose back hurts arching backwards, for more than a couple of weeks

Possibly a stress fracture of the spine (spondylolysis): get it checked.

Read: Spondylolisthesis →Back pain mostly standing still, at a walking-pad desk or standing desk

Our back pain when standing guide covers breaks, mats and a plan.

Read: Back pain when standing →Back pain when you walk or run outside

Our back pain when walking and back pain when running guides cover each.

Read: Back pain when walking →

Back pain after a fall from the belt

An injury, not overuse: see the warning signs at the top of this page.

Understand it

Walking and running on a belt move the back much as they do outsideEmerging evidence

A treadmill is walking or running indoors. In 10 adults running at a matched speed, the lower back and pelvis moved much the same on a belt as overground, with only 3 measures different. In 9 healthy men walking, the upper lower back and pelvis side-bent and turned a little less on the belt. Across 22 studies of walking and 33 of running, treadmill and overground movement, forces and muscle activity were largely comparable.

People chose a slower pace on a treadmill than outside (older adults 1.31 against 1.45 metres a second), so a number copied from your outdoor pace can feel fast. No study has counted back pain caused by treadmills, so the map on this page is built from lab studies, condition studies, walking and running trials, and NHS and NICE pages, and it says so.

Sources 1, 2, 3, 4, 5

Walking uphill, and the 12-3-30Emerging evidence

On a treadmill raised from 0 to 10%, the pelvis and trunk tipped further forward with each step up in slope, and walking downhill tipped them back, in 8 adults. Leaning forward uphill is normal and saves energy, and it shifts work onto the hips. At 10%, the upper trunk turned more but the pelvis moved no differently in 22 adults; on a steep slope the long back muscles worked harder in 22 more; and at a 20% grade, older men swayed a little more from side to side.

So steep walking asks more of the hips, calves and back muscles, but no study links it with back pain. The one trial we found that compared slopes for back pain was a pilot of 11 people: level walking did slightly better for back muscle endurance, and pain and disability didn't differ. An 8-person study of very steep treadmill walking had no comparison group and is too small to rely on. That back pain with the 12-3-30 usually comes from a jump to a steep, long, vigorous session, often hanging on the rails, rather than the slope itself is our reading.

Sources 6, 7, 8, 9, 10, 11, 12

What holding the rails doesEmerging evidence

In 10 adults aged 38 to 60, gripping the rails cut oxygen use by about a fifth at the same speed and slope (26.1 against 20.6 ml per kg a minute at the hardest setting), and even very light support lowered the work on a stepping machine in 15 women. Rail support let 52 adults last 44.4% longer in a maximal test. On a level belt, holding on didn't change how the legs moved in 15 young adults.

In 10 people with narrowed leg arteries, holding the rails let them walk further before calf pain started, so the rails can hide that problem. No study has measured the lower back while people grip or lean back on the rails. That hanging back on the rails on a steep slope arches the lower back and irritates a sore one is our reading, not a measured fact. A light touch for balance is fine, and the treadmill study's authors say people new to treadmills or afraid of falling may benefit from rail support.

Sources 13, 14, 15, 16, 17

How common it is, and who gets itEmerging evidence

No study counts back pain on a treadmill. US emergency departments saw about 70,302 injuries from home exercise machines in 2007 to 2011, 66% from treadmills, mostly sprains, strains and falls, with the trunk a minority of them; in an Australian series, falls caused 70.7% of treadmill injuries at gyms. Neither counted back pain without an injury.

Back pain is uncommon in runners: between 0.7% and 20.2% had it across 19 studies. Regular runners' discs looked healthier on scans than inactive people's in 79 adults, a one-time comparison that can't show cause. So back pain on the treadmill is most likely after a jump in time, slope or speed, in a new routine such as the 12-3-30 or a walking pad at a desk, in people who already have back pain and, with leg symptoms, from mid-life (our reading).

Sources 18, 19, 20, 21

Leg symptoms on the belt: the spine or the arteriesEmerging evidence

In lumbar spinal stenosis the leg symptoms are usually worse with walking or standing and relieved by sitting or leaning forward, NHS inform says, and a review describes the pain as brought on by arching and eased by bending forward. In 209 spine clinic patients, being over 60, pain in both legs and leg pain eased by sitting or leaning forward pointed to it. In a treadmill test of 45 people, symptoms came on sooner on the flat and people walked longer on a slope when they had stenosis.

Narrowed leg arteries cause an ache on walking that eases with rest, in the calf, thigh or buttock, an NHS leaflet says. In 53 people with one or the other, calf symptoms eased just by standing still pointed strongly to the arteries, but single symptoms told the two apart poorly, so leg pain on walking needs a GP's assessment.

Sources 22, 23, 24, 25, 26, 27

When a scan or test helpsStrong evidence

The National Institute for Health and Care Excellence (NICE) says don't routinely offer imaging for low back pain outside specialist care, and in specialist care only if the result is likely to change management. In scans of people without back pain, disc wear rose from 37% at 20 to 96% at 80, and many such features are likely part of normal ageing.

Stenosis is diagnosed from your story and an examination, with a scan when it will change treatment. Narrowed leg arteries are checked with the pulses and by comparing the blood pressure at the ankle and the arm (our calf pain when walking guide). Tests matter with the warning signs.

Sources 28, 29, 23

How it usually goesEmerging evidence

Across 33 groups of 11,166 people, new back pain improved markedly in the first 6 weeks: on a 100-point scale, pain fell from 52 to 23 by 6 weeks and to 6 by a year. The NHS says back pain usually improves within a few weeks. Stenosis is slower: over up to 3 years without surgery, about a third of people improved, about half stayed the same and 10% to 20% got worse.

Back pain often comes back, which is why a walking habit that delayed the next bout in a large trial is worth keeping. No one can promise a date.

Sources 30, 23, 38, 31

What helps, and how strong the evidence is

Walking helps back pain about as much as other exerciseStrong evidence

Across 5 trials in chronic low back pain, walking did as well as other exercise for pain, disability, quality of life and fear of movement. Across 19 trials of 2,362 people, walking or running helped a little more than doing nothing, on high-certainty evidence, but less than other active treatments. Across 26 studies of long-lasting muscle and joint pain, walking gave small gains in pain and function, with the longer-term effect uncertain.

In 246 adults with chronic back pain, a supervised walking programme matched a gym class and usual physiotherapy, with the lowest costs and the best adherence. The effects are small, and walking is one option among several.

Sources 32, 33, 34, 35

The one treadmill trial: walking matched back exercisesEmerging evidence

In 52 inactive adults with chronic low back pain, moderate treadmill walking twice a week for 6 weeks did as well as specific back exercises for disability, fear of movement and trunk endurance, and the walkers' 6-minute walk improved by about 71 metres. It was one small trial, but it is the only one we found that used a treadmill.

Source 36

A walking habit delayed the next bout of back painStrong evidence

In 701 adults who had recently recovered from low back pain, a walking and education programme nearly doubled the time before back pain came back and limited their activities: a median of 208 days against 112. Walking started at least three times a week and built to at least 30 minutes, five times a week, by 6 months, then faster walking, hills, stairs or jogging.

That trial tested preventing the next bout after recovery, not walking while sore, and it wasn't on treadmills, so this guide borrows its targets as editorial goals.

Sources 37, 38

Running: a run-walk programme helpedEmerging evidence

In 40 adults aged 18 to 45 with chronic back pain, a 12-week progressive run-walk programme of three 30-minute sessions a week cut average pain by about 15 points out of 100 against waiting, with a small gain in disability. It was a small trial against a waiting list, and not on treadmills. Back pain is uncommon in runners in general.

Sources 39, 20

Spinal stenosis: physiotherapy, a bike, and supported treadmill walkingEmerging evidence

First-line care for stenosis is adjusting activity, pain relief and physiotherapy, a review says. In 58 people, manual therapy, exercise and body-weight-supported treadmill walking helped more people at 6 weeks than bending exercises with a treadmill walking programme (both groups walked on a treadmill), and 62% against 41% still met the recovery threshold at a year. In 68 people, supported treadmill walking and cycling did equally well.

Across 13 trials of 1,440 people, successful programmes more often included stretches, strength work and fitness exercise, especially cycling. A review rated manual therapy with exercise as effective, on moderate-quality evidence at best, and found epidural steroid injections not effective.

Sources 23, 40, 41, 42, 43

Narrowed leg arteries: walking into the pain is the treatmentStrong evidence

NICE says offer a supervised exercise programme to everyone with intermittent claudication, usually 2 hours a week for 3 months, walking to the point of maximal pain. The NHS adds rest until the pain goes, then walk again. That is the opposite of the stenosis rule, which is why leg pain on the treadmill needs a diagnosis before you build up.

Sources 44, 45

Changing the treadmill: lab readings, untested against painEmerging evidence

No trial has tested a slope, a speed or the rails against back pain on a treadmill. A 10% slope did no better than level walking in an 11-person pilot. The rails change the effort, not, as far as anyone has measured, the back. A gentle slope or a light lean on the rails may let people with stenosis walk further, because bending forward eases it and people with stenosis walked longer uphill in a treadmill test; that is our suggestion from a diagnostic test, untested as self-help.

Walking backwards on the belt eased pain straight after a single 15-minute session in 30 adults, with no follow-up, so it remains an experiment rather than a treatment.

Sources 11, 13, 6, 25, 46

Belts, injections and surgeryStrong evidence

NICE says don't offer belts or corsets for low back pain, and consider a group exercise programme for a flare. For stenosis, epidural steroid injections were not effective in a review, and surgery helps some people whose symptoms don't improve with other treatment (our spinal stenosis guide covers it). Our back pain when walking guide sets out the NHS advice on painkillers.

Sources 28, 43

How much pain is OK while you exercise?

Up to about 5 out of 10, settled within an hour, never into a legEmerging evidence

This guide uses the back hub's rule, as our other back movement guides do. Some discomfort during exercise is fine, and it does not mean you are doing damage. Aim for pain you would call mild to moderate, no more than about 5 out of 10. It should settle within an hour or so, and your back should be no worse the next morning. If it is worse, do less next time (fewer reps, a smaller range, a lighter load), not nothing.

Leg symptoms are the exception: stop or shrink any movement that sends pain, pins and needles or numbness further down your leg. If leg symptoms move back towards your spine, that is a good sign, even if your back aches a little more for a while.

If pain climbs day after day, or you notice any warning sign, stop and get it checked. The 5 out of 10 figure matches this site's other pain guides and has not been tested in a back pain trial; in trials of long-lasting muscle and joint pain, exercise that allowed some pain did no harm.

Calf, thigh or buttock ache that goes when you stand still isn't this rule: get it checked by a GP. Once narrowed arteries are diagnosed, the walking programme deliberately walks into the pain, as our calf pain when walking guide explains.

On the treadmill (our suggestion, built on the same rule): judge each session by its last 5 minutes and by the next morning. Use the slope, speed and time where your back stays at 5 out of 10 or less, settles within an hour and is no worse the next morning, aiming for 0 to 3, with your hands free or a fingertip on the rail. Pain that builds steadily through a session rather than holding steady is a sign to end it there, flatten the belt and go shorter next time, not to stop walking. Change one thing at a time: time first, then pace, then slope. If you need to grip the rails to stay within the rule, the setting is too hard for now. NHS inform's back exercises use the same limit (0 to 3 minimal, 4 to 5 acceptable, 6 to 10 excessive) and want your back no worse the morning after.

With the stenosis pattern (our suggestion, as in our spinal stenosis guide): NHS inform encourages walking short distances regularly while symptoms are manageable, with breaks to sit or lean forward. Walk until the leg symptoms start to build, then stop, sit or lean forward until they ease, and go again; your walking time should creep up. A gentle slope or a light lean on the rails may let you walk further, though that comes from a diagnostic treadmill test and hasn't been tested as self-help. Leg weakness that is getting worse, or numbness around the genitals or bottom, is never an interval: it's a warning sign.

Sources 47, 48, 22, 25, 44

The exercise plan: 3 stages

Start at the first stage. Each move opens a full guide with a 3D demo.

Stage 1

Keep walking: flatter, slower, shorter, hands free

About weeks 0 to 2: keep walking within the pain rule with the written changes below, and start the gentle back exercises and trunk work from our back pain guides. Walking most days, the exercises daily or every other day. With the stenosis pattern, walk in intervals; with calf, thigh or buttock ache that goes when you stand still, see a GP first. With a diagnosed condition (sciatica or a disc, spinal stenosis, narrowed leg arteries, a stress fracture, pregnancy), that guide's plan, or your team's, comes first.

Treadmill walking demonstrated on the 3D figure

3D demoTreadmill walkingBeginner · Cardio machine

10 to 20 minutes at 0 to 1%, at a pace you can talk through, hands free; or 5 to 10 minutes several times a day if longer spells hurt. With the stenosis pattern, about 10 minutes in total, in walk-and-rest intervals · As in our treadmill guide and back pain when walking guide (editorial); the intervals are our spinal stenosis guide's. A gentle slope or a light lean on the rails, if it eases the stenosis pattern, is our suggestion from a treadmill test, untested as self-help. Walking outdoors counts the same

Harder: Treadmill jogging

Recumbent exercise bike demonstrated on the 3D figure

3D demoRecumbent exercise bikeBeginner · Cardio machine

10 to 20 minutes at a moderate effort to start, building towards 30 (our editorial starting point). Moderate means you can talk but not sing, and those minutes count towards the 150 a week the NHS recommends. The resistance sets the effort: the Compendium rates stationary cycling from very light to very vigorous. · The move page's dose. The swap if the treadmill keeps hurting, and a good fit for the stenosis pattern: cycling featured in successful stenosis programmes and did as well as supported treadmill walking in a trial

Harder: Stationary cycling

3D demoCat-cowBeginner · No equipment

8 waves, slower than feels natural · The move page's dose. NHS inform's back exercises include the same curl and uncurl on your hands and knees

Harder: Half lord of the fishes (Ardha Matsyendrasana)

Pelvic tilt into bridge demonstrated on the 3D figure

3D demoPelvic tilt into bridgeBeginner · No equipment

The tilt first, holding 2 s: 2 to 3 at a time, building to sets of 8 · NHS inform's pelvic tilt, with its pacing, as our back pain when walking guide uses it

Harder: Glute bridge

Double knee-to-chest stretch demonstrated on the 3D figure

3D demoDouble knee-to-chest stretchBeginner · No equipment

With the stenosis pattern: hold 20 to 30 s, 2 to 4 times, only if bending forward eases you · Adapted from the move page's dose (its editorial starting point): a bending-forward rest, as in our back pain when walking guide. Leave it out if it sends pain down a leg, and avoid deep rounding with osteoporosis, as the move page says

Easier: Single knee-to-chest stretch · Harder: Overhead lat stretch at a bench (elbows on the bench)

Bird dog, one limb at a time demonstrated on the 3D figure

3D demoBird dog, one limb at a timeBeginner · No equipment

2 to 3 sets of 6 to 8 each side, 3 to 5 s holds · As in our back pain guide (editorial), as our burpee back guide uses it

Easier: Side-lying tummy draw-in · Harder: Bird dog

Move on when: You can walk 15 to 20 minutes on the flat, or your walking intervals are getting longer, and your back is no worse the next morning, for about a week (as in our back pain when walking guide; editorial).

Follow along: a timer, a cue and the next move, one step at a time.

Stage 2

Build strength, and time on the belt, flat first

About weeks 2 to 6: walk longer and more often, building towards the WalkBack trial's target, with leg, hip and trunk strength 2 or 3 days a week. The slope stays low until 30 flat minutes pass the pain rule.

3D demoTreadmill walkingBeginner · Cardio machine

Build towards 30 minutes on at least 5 days a week, adding a few minutes every 2 or 3 walks, then a brisker pace, at 0 to 1% · WalkBack's end-of-programme target, borrowed and editorial here, as in our back pain when walking guide

Harder: Treadmill jogging

Sit to stand from a chair demonstrated on the 3D figure

3D demoSit to stand from a chairBeginner · A bench or box

3 sets of 8 to 10 · As in our back pain guide (editorial), as our back pain when walking guide uses it

Easier: Sit to stand, pushing on the thighs · Harder: Bodyweight squat

Glute bridge demonstrated on the 3D figure

3D demoGlute bridgeBeginner · No equipment

2 to 3 sets of 10 · As in our back pain guide (editorial)

Easier: Pelvic tilt into bridge · Harder: Single-leg glute bridge

Knee side plank demonstrated on the 3D figure

3D demoKnee side plankBeginner · No equipment

3 holds of 15 to 30 s each side · As in our back pain when running guide (editorial)

Harder: Side plank

Dead bug heel taps demonstrated on the 3D figure

3D demoDead bug heel tapsBeginner · No equipment

2 sets of 6 to 8 each side · As in our back pain guide (editorial), as our burpee back guide uses it

Easier: Bent-knee fall-out · Harder: Forearm plank

Half-kneeling hip flexor stretch demonstrated on the 3D figure

3D demoHalf-kneeling hip flexor stretchBeginner · No equipment

2 to 3 holds of 30 s each side; tuck the pelvis and don't arch the back · As in our spinal stenosis guide, as our back pain when walking guide uses it. Pad the kneeling knee, as the move page says

Harder: Couch stretch

Move on when: You can walk 30 minutes at a brisk pace on the flat (with pauses if you have the stenosis pattern), and your back is no worse the next morning (as in our back pain when walking guide; editorial).

Follow along: a timer, a cue and the next move, one step at a time.

Stage 3

Back to the slope, the pace and running

From about week 6: your usual treadmill sessions back by the written steps below, one change at a time: the slope, then the speed, then the 12-3-30 or running, with strength kept twice a week. No trial has tested a return to incline walking or treadmill running after back pain, so the order is editorial, built on our incline walking guide and the run-walk back pain trial.

3D demoTreadmill walkingBeginner · Cardio machine

The slope back from 3 to 5% for 10 to 15 minutes, adding 1 or 2% at a time and slowing the belt as the slope rises so you can still talk, hands off the rails; the 12-3-30 last, if you want it · Our incline walking guide's starting point (editorial)

Harder: Treadmill jogging

Treadmill jogging demonstrated on the 3D figure

3D demoTreadmill joggingIntermediate · Cardio machine

If you run: a progressive run-walk programme, three 30-minute sessions a week over 12 weeks, starting with short jogs between walks, at 0 to 1% · The ASTEROID trial's programme, with the stages as our back pain when running guide sets them out

Easier: Treadmill walking · Harder: Sprint intervals

3D demoStep-upBeginner · A step

3 sets of 8 each side · As in our back pain guide (editorial), as our back pain when walking guide uses it

Easier: Low step-up · Harder: Dumbbell step-up

Dumbbell goblet squat demonstrated on the 3D figure

3D demoDumbbell goblet squatIntermediate · A dumbbell

3 sets of 8 to 10 · As in our back pain guide (editorial)

Easier: Bodyweight squat · Harder: Barbell front squat

Side plank demonstrated on the 3D figure

3D demoSide plankIntermediate · No equipment

3 holds of 20 to 30 s each side · As in our back pain guide (editorial)

Easier: Knee side plank · Harder: Side plank with leg lift

Farmer's carry demonstrated on the 3D figure

3D demoFarmer's carryIntermediate · A dumbbell + A kettlebell

3 walks of 20 to 30 m · As in our back pain guide (editorial): loaded walking

Harder: Suitcase carry

Move on when: Your usual sessions pass the pain rule for 2 weeks. If a session flares it, go back to the last setting that was fine, not to nothing (editorial).

Follow along: a timer, a cue and the next move, one step at a time.

What to change for now

What to change on the treadmill today (written steps)

Our 3D figure can't show the slope, the speed, the rails or your pace. These steps come from lab studies, our treadmill and incline walking guides and NHS pages; where a step is our suggestion or our reading, it says so. No trial has tested any change to treadmill settings for back pain.

1. Flatten the belt for now: walk at 0 to 1% while your back is sore, as our treadmill guide suggests for walking. No study shows a slope helps back pain, and level walking did slightly better in a small pilot trial. Leave the 12-3-30 until stage 3 (editorial).
2. Slow down: a pace where you can talk but not sing, as the NHS describes a brisk walk. People choose a slower speed on a belt than outside, so start below your outdoor pace.
3. Let go of the rails, and don't hang back on them. A fingertip touch for balance is fine; if you need to grip to keep up, slow the belt or lower the slope. Gripping cuts the work by about a fifth, and that hanging back on a steep slope arches the lower back is our reading.
4. Walk tall, arms swinging, near the middle of the belt, as our treadmill guide teaches. On a slope, leaning forward a little is normal; leaning a long way forward means the slope is too steep for now (our reading).
5. Split long sessions into two or three shorter walks, building time first, then pace, then slope (editorial, as in our treadmill and back pain when walking guides).
6. With the stenosis pattern, use what eases it: walk short distances regularly with breaks to sit or lean forward, as NHS inform suggests. A gentle slope or a light lean on the rails may let you walk further (our suggestion, from a diagnostic treadmill test; untested as self-help).
7. With calf, thigh or buttock ache that goes when you stand still, see a GP before you build up, and don't hold the rails to push further for now: rail support lengthened walking before calf pain in people with narrowed arteries.
8. Running: short run-walk sessions at an easy pace, with the belt at 0 to 1% (our back pain when running and treadmill guides).
9. Swaps for now: walking outside, a recumbent or upright bike, the elliptical or the pool (editorial). Our elliptical guide notes the lower back bent and twisted more on an elliptical than in walking in a lab study, so it isn't automatically gentler for every back.
10. Safety: clip on the safety key, start from the side rails and let the belt stop before you step off, as our treadmill guide teaches; most treadmill injuries at gyms are falls.

Sources 13, 11, 5, 6, 7, 22, 25, 17, 19, 50

Everyday life and the rest of your training

Keep walking outside as well as on the belt: the NHS says activities like walking, swimming, yoga and Pilates may help ease back pain, and NHS inform calls keeping active the single best thing you can do. At a walking-pad or standing desk, break up long spells and see our back pain when standing guide. With the stenosis pattern, plan walks with places to stop, and a shopping trolley, a rollator or walking poles let you lean forward (our back pain when walking guide). WalkBack spread walking across the week and built it up gradually, so shorter walks on most days beat one long walk after days off. Running outside, hills and races come back by our back pain when running guide.

Sources 31, 49, 37

Positions to swap, and why

Habit or position	Why it matters	Instead
A steep slope or the 12-3-30 while your back is sore	No study shows a slope helps back pain; level walking did slightly better in a small pilot trial, and steep walking is vigorous.	0 to 1% first, then 3 to 5% in stage 3; the recumbent bike meanwhile.Try: Recumbent exercise bike
Gripping the rails, or hanging back on them on a slope	Gripping cuts the work by about a fifth; that hanging back arches the lower back is our reading.	Hands free with a fingertip for balance, a slower belt or a lower slope.
Holding the rails to walk through calf, thigh or buttock ache	Rail support let people with narrowed leg arteries walk further before pain, so it can hide them.	Stop, and see a GP.
Forcing yourself bolt upright with the stenosis pattern	Bending forward eases stenosis, NHS inform and a review say.	A gentle slope or a light lean on the rails (our suggestion), or the bike.Try: Recumbent exercise bike
Long, fast or hilly runs on the belt during a flare	The back pain trial used a progressive run-walk programme at an easy pace.	Short run-walk at 0 to 1%.Try: Treadmill jogging
One long session after days off	The WalkBack programme spread walking across the week and built it up gradually.	Shorter walks on most days.Try: Treadmill walking
Changing slope, speed and time together	Our treadmill and incline walking guides add one thing at a time, so you can tell what your back dislikes.	Time, then pace, then slope.
Stepping on or off a moving belt, or no safety key	Most treadmill injuries are falls.	Start from the side rails, clip on the key, let the belt stop.
Resting in bed until it stops hurting	The NHS and NHS inform say stay active, and most new back pain improves markedly within about 6 weeks.	Short walks, little and often.Try: Treadmill walking
A back belt or corset for walking	NICE says don't offer belts or corsets for low back pain.	Trunk and hip strength.Try: Knee side plank
Walking backwards on the belt as a treatment	One study of a single session, with no follow-up; our treadmill guide says leave backward walking out.	Forwards, flatter and slower.
Walking on through leg weakness, a foot that slaps down, or numbness around the genitals	These are warning signs that need help the same day, or a 999 call.	Get help now, as the warning signs say.

Routines to follow

Easy cardio workout

A steady 30 to 45 minute cardio session at talk-but-not-sing pace: walk, cycle, row or cross-train, counting toward weekly activity guidelines.

40 minBeginner3 movesCardio machine, A wall

Interval walking workout: 3 minutes fast, 3 minutes easy

A 40-minute walk alternating 3 minutes fast and 3 minutes easy, five times over: the interval walking tested in Japanese trials, built up from three rounds.

40 minBeginner3 movesCardio machine, A wall

Incline walking workout: hills or a treadmill slope

A 50-minute walk with hills, outdoors or on a treadmill slope: brisk on the flat, slower on the climbs, building from gentle slopes to about 6%.

50 minBeginner5 movesCardio machine, A step

Incline treadmill workout: building up to 12% for 30 minutes

A steep treadmill walk that builds over weeks to the 12-3-30 settings (12% incline, 3 mph, 30 minutes), with a warm-up, a cool-down and stop rules.

40 minIntermediate3 movesCardio machine, A wall

Run-walk intervals for beginners

A 30-minute beginner run-walk session: a brisk walk, then 1-minute jogs with 1-minute walks, building to 3-minute runs over your first three weeks.

30 minBeginner5 movesCardio machine, A wall

Claudication walking workout: walk-rest-walk

The walk-rest-walk session for leg pain from narrowed arteries: walk until the pain is close to the most you can bear, rest until it goes, repeat to 30 minutes.

45 minBeginner8 movesA wall, Cardio machine

Lower back stretch routine

Seven gentle stretches and mobility moves for a stiff lower back, done lying and kneeling.

12 minBeginner7 movesA wall

Cardio machines for beginners: treadmill, cross-trainer, rower and bike

A first tour of the gym's cardio machines: a few minutes each on the bike, treadmill, cross-trainer and rower, set up safely, at a talk-but-not-sing pace.

40 minBeginner7 movesCardio machine, A wall

More moves for this area

Questions people ask

Why does my lower back hurt on the treadmill?

Usually ordinary back pain meeting a longer, steeper or faster session than your back is used to, often with the rails gripped or the slope suddenly high. The treadmill itself moves your back much as walking outside does. Leg ache, tingling or heaviness as you walk is a different pattern, covered below.

Why does incline walking hurt my lower back?

Walking uphill tips your pelvis and trunk forward and works your hips and back muscles harder, and a sudden jump to a steep slope, or hanging back on the rails, is the usual story (our reading). Flatten the belt, let go of the rails and build the slope back 1 or 2% at a time.

Is the treadmill good or bad for lower back pain?

Good for most people: treadmill walking did as well as back exercises in a 6-week trial, and walking programmes help chronic back pain a little and delay the next bout. Start flat and gentle and build up.

Is it OK to hold the treadmill rails?

A light touch for balance is fine. Gripping cuts the work by about a fifth at the same setting, so if you need to hold on to keep up, slow down or lower the slope.

Why do my legs ache, go heavy or tingle on the treadmill but feel better when I lean on the rails?

That is the pattern of spinal stenosis, usually from 50: bending forward eases it, and people with stenosis walked longer on a slope than on the flat in a treadmill test. Walk in intervals, and see a GP or physiotherapist to have it assessed.

My calves or buttocks ache after a few minutes on the treadmill and ease when I stand still. Why?

That can be narrowed leg arteries, especially if you smoke or have diabetes; calf pain that eases just by standing still points to them. See a GP: once it is diagnosed, a walking programme is the main treatment.

Why does my back hurt after running on the treadmill?

Usually ordinary back pain from more running than usual; back pain is uncommon in runners. Run-walk at an easy pace with the belt at 0 to 1%, and see our back pain when running guide. One-sided low back or buttock pain that comes on with running in a distance runner needs a GP check.

Is the elliptical or the bike better than the treadmill for back pain?

If walking hurts, a bike is often easier, especially with leg symptoms from stenosis, where cycling did as well as supported treadmill walking in a trial. The elliptical is a fair swap, though the lower back bent and twisted more on it than in walking in a lab study. Pick what passes the pain rule.

Does walking backwards on a treadmill help back pain?

It isn't proven: one small study found an easing of pain after a single 15-minute session, with no follow-up. Our treadmill guide advises leaving it out.

Should I do the 12-3-30 with back pain?

Not while your back is sore: it is a vigorous workout, and no trial has tested it for back pain. Walk on the flat first, then build the slope from 3 to 5% in the last stage of the plan.

Do I need a scan?

Usually not: NICE advises against routine scans for back pain, and disc changes are common in people without pain. The warning signs decide who needs one.

When should I see a doctor?

Call 999 for numbness around your genitals or bottom, new bladder or bowel trouble, weakness in both legs, or chest pain or breathlessness on the treadmill. Get help the same day for back pain with a fever, after a fall, or with leg weakness that is getting worse, and see a GP for leg pain on walking or back pain that isn't better after a few weeks. In the US, call 911 where this page says 999.

Related exercise guides

Sources

Exercise education, not a diagnosis or treatment plan. It is written from the guidelines and studies listed above; review by a clinician is pending. If your pain follows an injury, is severe, is getting worse, or comes with any warning sign listed on this page, get it assessed. Health disclaimer.

When to get help first

Get urgent medical help if

See a doctor or physiotherapist if

Where does it hurt?

Understand it

Walking and running on a belt move the back much as they do outsideEmerging evidence

Walking uphill, and the 12-3-30Emerging evidence

What holding the rails doesEmerging evidence

How common it is, and who gets itEmerging evidence

Leg symptoms on the belt: the spine or the arteriesEmerging evidence

When a scan or test helpsStrong evidence

How it usually goesEmerging evidence

What helps, and how strong the evidence is

Walking helps back pain about as much as other exerciseStrong evidence

The one treadmill trial: walking matched back exercisesEmerging evidence

A walking habit delayed the next bout of back painStrong evidence

Running: a run-walk programme helpedEmerging evidence

Spinal stenosis: physiotherapy, a bike, and supported treadmill walkingEmerging evidence

Narrowed leg arteries: walking into the pain is the treatmentStrong evidence

Changing the treadmill: lab readings, untested against painEmerging evidence

Belts, injections and surgeryStrong evidence

How much pain is OK while you exercise?

Up to about 5 out of 10, settled within an hour, never into a legEmerging evidence

The exercise plan: 3 stages

Keep walking: flatter, slower, shorter, hands free

Build strength, and time on the belt, flat first

Back to the slope, the pace and running

What to change for now

What to change on the treadmill today (written steps)

Everyday life and the rest of your training

Positions to swap, and why

Routines to follow

Easy cardio workout

Interval walking workout: 3 minutes fast, 3 minutes easy

Incline walking workout: hills or a treadmill slope

Incline treadmill workout: building up to 12% for 30 minutes

Run-walk intervals for beginners

Claudication walking workout: walk-rest-walk

Lower back stretch routine

Cardio machines for beginners: treadmill, cross-trainer, rower and bike

More moves for this area

Questions people ask

Related exercise guides

Other pain guides

Sources