If leg pain showed up during or after a deadlift, the usual advice is to stop pulling and rest. Most lifters I work with don't need that. They need to work out which tissue may be irritated, change the variation, and let symptoms (not the calendar) decide when the load goes up. I'm Parth Suthar, a registered physiotherapist in Ontario and a former competitive powerlifter. This is how I approach sciatica and the deadlift.
A quick note: this article is education, not a diagnosis. I can't tell what is going on in your back from a page, and nothing below replaces an assessment.
TL;DR
- "Sciatica" describes pain travelling along the sciatic nerve pathway. It is a symptom pattern with several possible sources, not one diagnosis, so the right deadlift change depends on the source.
- Separate technique causes (set-up, bar path, bracing, grip, stance) from load-management causes (volume, intensity, frequency, recovery). Fixing the wrong one wastes weeks.
- Most lifters can keep training with modified variations: isometrics, pin or block pulls, trap bar, tempo RDLs. Progress when criteria are met, not on a date.
- Saddle numbness, bladder or bowel changes, progressive leg weakness or symptoms in both legs need urgent medical care. See the red flags section.
- Sitting often aggravates leg symptoms, and you can manage that without quitting the barbell.
Table of Contents
- What sciatica actually describes
- Which structures may be involved, and how to tell them apart
- Technique causes: what the set-up and bar path may change
- Load-management causes: when the plan is the problem
- Sitting, and why your desk may matter
- A criteria-based return to deadlifting
- Red flags: when you need in-person or medical assessment
- Perspective: what I see in lifters with leg pain
- Free guides and a next step
- FAQ
- Ready to get your pull assessed?
- Sources
What sciatica actually describes
The NHS describes sciatica as irritation or compression of the sciatic nerve, which runs from the lower back toward the feet, and notes it usually improves over a few weeks to a few months but can last longer. Mayo Clinic adds that it most often happens when a herniated disc or bone overgrowth presses on a lumbar nerve root.
For a lifter, that matters because the deadlift loads the spine heavily. Older biomechanical work on national-level powerlifters documented the compressive and shear forces at L4/L5 during extremely heavy lifts. Heavy loading is not automatically harmful, since the spine adapts to it, but it explains why a sensitive nerve root can complain loudly when the bar is heavy and the position is off.
Which structures may be involved, and how to tell them apart
I never diagnose through a screen, but these are the structures I think about first, and the clues that may point toward each. Treat this table as a way to describe your symptoms accurately to a clinician, not to label yourself.
| Structure | What the pain may feel like | Clues that may point to it |
|---|---|---|
| Lumbar nerve root (L4, L5 or S1), often with a disc involved | Sharp or electric pain, sometimes with tingling or numbness, travelling below the knee | Pain often changes with flexion, coughing or sitting; may come with a reflex or strength change in the foot or ankle |
| Sciatic nerve in the deep gluteal region (piriformis area) | Buttock-centred ache, may refer down the back of the thigh | Often worse with prolonged sitting or deep hip flexion; back movement may feel fairly normal |
| Sacroiliac joint or lumbar facet joints | Dull, one-sided ache in the low back or buttock, usually not past the knee | Tends to be localised, pinned to one spot, with pain on single-leg loading or extension |
| Proximal hamstring tendon | Sore spot where the hamstring attaches under the glute | Tender to press, worse with sitting on hard surfaces and with RDLs or deficit pulls, no numbness |
| Muscle strain or general lumbar irritation | Broad ache, local tightness | Usually follows a specific heavy session and settles with movement |
The most useful distinction is where the symptoms travel and what changes them. Pain that stays in the back or buttock behaves differently from pain that reaches the calf or foot with tingling. If symptoms spread further down the leg when you do something, that is information, and it is the signal I want to hear about first.
If you lift with a bar on your back or in your hands daily, the deadlift lower back pain breakdown on my blog walks through more tissue clues.
Technique causes: what the set-up and bar path may change
These are the faults I look for on video of your actual pulls. None of them proves that a given fault caused your symptoms. They are places where small changes may reduce irritation.
- Bar position over the foot. In a study of isometric conventional deadlifts, researchers compared two set-up positions for bar placement and examined muscle activity, lumbar spine kinetics and force output. Set-up position changes how the load reaches the spine, which is why I film the start position first.
- Bar drifting away from the legs. A bar that swings forward lengthens the lever arm on the lower back. I look for the bar path at the knee in particular.
- Bracing that releases early. Losing intra-abdominal pressure as the bar breaks the floor lets the lumbar spine move under load. Related cues are in my piece on squat bracing and progressing by criteria, and the same principle applies to pulls.
- Hips shooting up first. When the hips rise faster than the shoulders, the pull becomes a good-morning, and the low back does the work.
- Grip and lat engagement. If you can't keep the lats tight, the bar drifts. Switching to straps or mixed grip is a legitimate short-term fix while pain is high.
- Stance and depth for your build. Sumo, conventional and trap bar are different demands on the back and hips. The right one depends on your proportions and which tissue is irritated.
A straight versus hexagonal bar comparison in 19 male powerlifters looked at kinematics and kinetics across submaximal loads. It is a reason to test the trap bar as a temporary tool, not a promise that it will suit you.
Load-management causes: when the plan is the problem
Sometimes the pull looks fine and the programming is the issue. Ask yourself:
- Volume: did total hard sets or reps of hinge work jump over the past few weeks?
- Intensity: have you been grinding near-max singles or heavy RPE 9-10 sets repeatedly?
- Frequency: are deadlifts, heavy squats and good mornings all landing within 48 hours of each other?
- Recovery: sleep, stress and a recent peak or meet block all change how much load your tissues tolerate.
A review of low back pain in weightlifting adolescents and young adults explored the nature and causes of back pain in lifters to find preventive measures. I read this as support for looking at the whole training picture and not just one rep.
A simple way to separate the two: if symptoms appear mainly on heavy or fatigued reps and your technique drifts, load may be the driver. If they appear on the first warm-up set at 60% in a certain position, technique or tissue sensitivity may be.
Sitting, and why your desk may matter
A lot of lifters tell me the leg pain is worse in the car or at work than in the gym. Harvard Health notes that when disc-related pain moves into the leg, it may be sciatica. Sitting commonly flexes the lumbar spine and can compress the buttock area, so it may aggravate a sensitive disc or nerve.
This is not a posture-causes-pain argument. Sitting is rarely the cause. It is a load on a tissue that is already irritated. Practical steps that don't involve stopping training:
- Change position every 30 minutes or so: stand, walk to refill water, sit on a different surface.
- Try a small cushion or rolled towel behind the low back, and see if symptoms ease or worsen. Either answer is useful to log.
- Note whether pain climbs during the drive or after getting out of the car, and tell your physio.
- Walk before and after training. Pain-limited walking is the entry point of the progression below.
Stretching alone rarely solves it. A hamstring stretch can even tension an irritated nerve and increase symptoms. Prefer movement that you can load and measure.
A criteria-based return to deadlifting
The evidence supports staying active. The 2021 JOSPT low back pain guideline says physical therapists may use exercise training, including specific trunk muscle activation, to reduce pain and disability in people with low back pain, including with leg pain. A VA/DoD clinical practice guideline also recommends delaying imaging for non-specific low back pain in the first weeks in the absence of red flags, as most cases improve with conservative, active care.
Below is the structure I use. You move to the next stage only when you meet every criterion, twice in a row. The criteria below are my working rule with lifters, not a published threshold.
Universal criteria for progressing
- Pain during the session stays at or below about 3/10 and doesn't climb across sets.
- Leg symptoms don't travel further down the limb during or after the session.
- Symptoms settle to baseline within 24 hours.
- No new numbness, tingling or weakness.
Stage 1: calm it and keep the pattern
Pain-limited walking daily. Isometric pulls at low effort against pins or in a rack at mid-shin height, 5 to 10 second holds, a few sets. Maintain the squat pattern with a Safety Squat Bar to the box if flexion bothers you, and keep pressing with the floor press, which keeps the bench volume going without the lower back involved.
Move on when: isometrics are comfortable, and walking doesn't provoke leg symptoms.
Stage 2: shorten the lever, control the tempo
- Block pulls or pin pulls from just below the knee, so the range of motion is shorter.
- Trap bar deadlifts from high handles, which keep the load closer to your centre of mass.
- Tempo RDLs with light load, a three-second lowering, stopping before the back rounds or the leg symptoms appear.
- Paused squats with the SSB for hip and leg strength.
Move on when: you can complete all work with stable pain and no peripheralisation for two sessions.
Stage 3: lower the start position
Trap bar from the floor, then block pulls with the blocks gradually lowered. Add a pause at the knee on conventional pulls to rebuild bar path control. Add load first, then volume.
Move on when: floor-height pulls at moderate loads hold the same criteria for two sessions.
Stage 4: return to your competition pull
Conventional or sumo from the floor, in sets of 3 to 5 at moderate intensity, then climb. Keep one lighter day and one heavier day a week until your top sets are symptom-free. Treat the first heavy single as a test, not a PR attempt.
If symptoms flare, go back one stage, don't go back to zero. A flare is information about load or technique, not a failure.
Red flags: when you need in-person or medical assessment
Some symptoms are outside what virtual care or self-management should handle. The NHS lists these as needing urgent assessment, and they may indicate cauda equina syndrome, a serious spinal condition:
- Numbness around the groin, inner thighs or genitals (saddle numbness)
- Loss of bladder or bowel control, or new difficulty passing urine
- Progressive weakness in a leg or foot, such as a foot that starts to drop
- Symptoms in both legs at the same time
If any of these appear, go to an emergency department the same day. Don't wait for an appointment with me or anyone else.
Also arrange an in-person assessment with a physician if you have pain after significant trauma, fever or unexplained weight loss with back pain, constant night pain that doesn't change with position, or leg symptoms that are worsening week on week despite modifying your training. In Ontario, your family doctor or a walk-in clinic is the starting point, and they can arrange imaging or a specialist when it is warranted. Seeing a doctor is the right first step in those situations, but for most lifters with sciatica-type pain and no red flags the next step is active, guided loading.
Perspective: what I see in lifters with leg pain
I competed in powerlifting before I treated it, and I know the instinct: it's two weeks out from a meet, the leg is buzzing, and you want someone to say it's fine to pull. What I try to give lifters instead is a clear map. Which tissue may be irritated, what to test next, and what you can still train today.
What I most often see is that the pull isn't dramatically broken. A lifter is tired, the bar has drifted two centimetres further forward, bracing releases a fraction early, and the volume was higher than usual that week. None of it is felt in the moment, and the sum shows up as leg pain three days later. Video of your actual reps lets me find the specific drift, and I'd rather change that than ban the lift.
I also see lifters stop everything for six weeks and come back to the same pain at the same weight, because nothing was rebuilt. Resting is rarely the whole answer. Early guided exercise has support: a trial-based analysis of acute sciatica reported better one-year disability outcomes with early physical therapy (45.2% success) than with usual care (27.6%). That doesn't promise a result for any individual, but it supports choosing guided movement over waiting.
— Parth
Free guides and a next step
If you want to work on your own before booking, my free guides cover the lifts in detail: the bench guide for keeping your upper body training going, the Lifter's Hip & Lower Back Toolkit for drills and variations, and the lift audit for checking your set-up against a short list.
If you're in Ontario and want me to look at your actual pulls on video, the Initial Assessment is $130 and each Follow-Up Session is $100. No referral is needed, and receipts are accepted by most Canadian extended-health plans. Check your own plan's physiotherapy coverage first.
FAQ
Are deadlifts good or bad for sciatica?
It depends on the source of your symptoms, which is why blanket answers online disagree. For some lifters, a modified deadlift is part of recovery, and for others a specific variation or depth may keep symptoms irritated. Starting with isometrics, shortened range pulls and trap bar work lets you test your response safely.
Can I deadlift with sciatica?
Many lifters can train in some form, provided there are no red flags and symptoms don't spread further down the leg. Use the stage criteria above and reduce the load or range if pain climbs. If you're unsure what is irritated, a video assessment can narrow it down.
What is the worst thing to do with sciatica?
Ignoring the red flags is the riskiest. Beyond that, two common mistakes are complete bed rest and pushing through leg symptoms that are spreading. Staying gently active, as Cleveland Clinic and guidelines describe, is generally a better starting point than prolonged rest.
Why does my sciatica feel worse after sitting?
Sitting may load a sensitive disc or compress the buttock area, so symptoms can build over a long drive or workday. Changing position every half hour, walking, and tracking when symptoms start give your clinician useful information.
Ready to get your pull assessed?
If leg pain is changing how you deadlift, book with me for a free 15-minute consult at physioparth.com and we'll work out what to modify first.
Sources
- Sciatica, NHS
- Sciatica: symptoms and causes, Mayo Clinic
- Sciatica, Cleveland Clinic
- Don't take back pain sitting down, Harvard Health
- Lumbar spine loads during the lifting of extremely heavy weights, PubMed
- Set up position and isometric conventional deadlifts, PubMed
- Straight and hexagonal barbell deadlifts, PubMed
- Low back pain among weightlifting adolescents and young adults, PubMed
- Low back pain clinical practice guideline revision 2021, JOSPT
- VA/DoD clinical practice guideline for low back pain, PubMed
- Early physical therapy for acute sciatica, PubMed
Recommended
- Deadlift Back Pain: Ontario Lifters’ Tissue Clues and Return Criteria
- Squat Lower Back Pain: 7 Mistakes & How to Fix Them
This article is general education for strength athletes and is not a substitute for an individual assessment. Pain that is severe, worsening, or accompanied by numbness, weakness or loss of function needs prompt in-person or medical assessment. Author: Parth Suthar, Registered Physiotherapist (Ontario).