Could Your Foot Alignment Be Contributing to Lower Back Pain?

Foot alignment may contribute to lower back pain in some people, but low or high arches alone do not establish the cause. [3]

The Framingham Foot Study examined foot alignment and lower back pain in 1,930 adults. Inward-rolling foot movement, known as pronated foot function, was linked with back pain in women, but not men. Arch height while standing wasn’t linked with back pain in either group. The study found a connection, but couldn’t show whether the foot movement caused the pain. [3]

At Foot Factor’s London clinic, we assess how your feet move and discuss footwear, exercises and orthotics where appropriate for foot problems. This guide explains when a foot assessment may be useful, what research says about the connection with back pain and how to choose the right care.

How could your feet affect your back?

As you walk, your feet take your weight and adapt to the ground. Your ankles, knees, hips and pelvis move with them. Together with your spine, these connected parts form what clinicians call the kinetic chain.

A study of 154 physically active adults found that people with pronated foot function had differences in knee rotation and pelvic movement, among other measures. [2] These findings help explain why a foot assessment may also look at movement at your knees and pelvis.

Walking and running put those connections to work with every step. When a clinician looks at foot posture and spine alignment, they also need to consider your strength, mobility, activity and symptoms. A photograph of your arches is only a small part of that assessment.

Do flat feet, high arches or uneven legs matter?

Flat feet and lower back pain

Flat feet describe the shape of your arches when you stand. Pronation describes movement: the foot rolling inwards as it takes weight. Some pronation is part of normal walking. ‘Overpronation’ describes more inward rolling, but it doesn’t tell you whether that movement is causing a problem.

That distinction helps explain the Framingham findings: how the foot moved was linked with back pain in women, while arch height on its own wasn’t. For an assessment, that makes the way you walk worth looking at alongside your symptoms. [3]

For many people, flat feet cause no trouble and need no treatment. [4] If your feet hurt, our guide to flat feet treatment covers what an assessment involves and the options you may be offered. What matters is how your feet feel and function, rather than simply how low your arches look.

High arches and back pain

A high arch can put more weight through the heel and ball of the foot. Some people also experience instability or repeated ankle sprains. [5] Loading towards the outside of the foot is sometimes described as supination, but a high arch doesn’t tell you exactly how someone moves.

In the Framingham study, high arches were not associated with lower back pain. [3] New weakness or a changing foot shape deserves assessment, rather than simply buying a more cushioned insole. [5]

Leg length and rotation differences

A meaningful difference in leg length can affect walking and may be accompanied by hip or back pain. Yet small differences are common. As Yale Medicine orthopaedic specialist David Frumberg, MD, explains: “It’s very common for people to have small differences in length that they never notice.” [6]

If you seem to stand unevenly, don’t assume you need a heel lift. A clinician can check whether your legs differ in length or whether something else explains how you stand. Get that checked before adding a lift to one shoe.

Not sure why you stand unevenly?

We’ll look at how you stand and walk, then talk you through the findings and your options.

[Ask about a foot assessment]

What signs are worth mentioning at an appointment?

If you’re looking for signs of poor foot alignment, your shoes and everyday comfort can give you useful details to discuss at an appointment:

One shoe wears differently from the other.
Arch or heel pain occurs alongside knee, hip or back discomfort.
Your back feels worse after standing or walking, or you’ve noticed a limp.

Bring those details to your appointment, including when they began and what makes them better or worse. Pain after walking can have several explanations; it shouldn’t automatically be blamed on pronation.

Pain scientist Professor Lorimer Moseley describes pain as a “protective feeling” in a WorkSafe Queensland interview. [7] Pain is real, but it is not a simple measurement of tissue damage. Describing how pain affects your day helps your clinician understand more than a footprint alone can show.

Can you check your foot alignment at home?

A wet footprint offers a rough impression of how much of your sole contacts the ground. Dampen your foot, step onto paper on a safe, non-slip surface and compare the prints. A broad midfoot print may suggest a lower arch; a narrow connection may suggest a higher one. Neither result explains your back pain.

You can also look at your everyday shoes for uneven wear, compressed cushioning or a poor fit. Treat what you find as something to discuss. A worn sole can reflect the shoe’s age and use as well as how you walk.

Keep a short note of when symptoms appear, what brings them on and how long you can walk comfortably. Include whether your feet hurt at the same time, so you can discuss the pattern at your appointment.

What might help, and are orthotics worth buying?

Choose shoes that fit comfortably, give your toes room and suit the activity. NHS flat feet advice recommends wide, comfortable shoes with a low heel when flat feet cause problems. [4] Your shoes shouldn’t pinch or slip as you walk.

NHS back pain guidance recommends staying active and avoiding long periods of bed rest. [1] A physiotherapist can help choose an exercise programme suited to your abilities and symptoms, as NICE recommends. [8] Depending on what an assessment shows, that might include foot strengthening, calf mobility work or exercises for other parts of the leg.

The Chartered Society of Physiotherapy provides back exercise videos and advises checking with a healthcare professional before starting a new routine. Stop and seek medical advice if an exercise makes your pain worse. [12]

What does the research say about orthotics for lower back pain?

The evidence is mixed. A 2021 trial involving 101 people with chronic lower back pain and pronated feet reported improvements with custom orthotics after four weeks. [9] A review published online in 2024 also found benefits from foot orthotics or exercise in people with back pain and pronated feet, but included only four trials and 268 participants. [10]

By contrast, a 2023 trial of 41 people with chronic non-specific lower back pain found no significant benefit from ready-made orthotics at 12 weeks. [11] The studies tested different treatments in different groups of people, so they don’t give a clear answer about which insoles will help an individual.

In the UK, NICE advises against offering foot orthotics to manage lower back pain, with or without sciatica. [8]

What if your feet hurt too?

When a foot problem may benefit from orthotics, we’ll talk you through the options and how they fit with the shoes you wear. Off-the-shelf and custom orthotics serve different needs; the choice depends on your symptoms and assessment findings.

In our heel pain case study, ‘Adam’, 64, had started cutting his daily walks short. His assessment identified plantar fasciitis. Treatment included orthotics, taping, exercises, shockwave therapy and footwear advice; he later returned to his regular park walks. Adam’s name has been changed for privacy. This is one patient’s experience.

Our bespoke orthotics are made in house from your assessment findings, then fitted and adjusted before you leave. At your follow-up, you can discuss comfort, shoe fit and any adjustments you need.

When should you see a podiatrist, physiotherapist or GP?

A podiatrist can investigate painful feet and how they function. A physiotherapist can assess your back, movement and exercise needs. See your GP if back pain isn’t improving after a few weeks, is stopping everyday activities, or comes with unexplained weight loss or pain that is worse at night. [1]

Seek prompt medical assessment for new numbness or weakness. Sudden severe or rapidly worsening back pain, or back pain with fever or feeling unwell, needs urgent GP advice or NHS 111. Call 999 or go to A&E for back pain with symptoms in both legs, numbness around the genitals or anus, bladder or bowel changes, or following a serious accident. [1]

For non-urgent symptoms, we start with what hurts and what you want to do comfortably again. Our gait analysis service combines examination, video and pressure analysis to understand how your feet move. Our team includes podiatrists with NHS and private-practice experience and in-house orthotic specialists. We’ll explain what we find, discuss suitable care and advise whether your back needs assessment by another clinician.

Your questions about feet and back pain

Can flat feet cause lower back pain?

They may be relevant for some people, but flat feet alone don’t prove the cause. Research has linked pronated foot movement with back pain in some groups, while standing arch height showed no association in the Framingham study. Pain-free flat feet usually need no treatment. [3, 4]

Do orthotics help back pain?

Orthotics may be appropriate for a diagnosed foot condition when foot pain occurs alongside back pain. Their purpose should be clear: treating that foot problem. Back pain needs its own assessment, and research on back-pain benefits is mixed. [8, 9, 10, 11]

How long until alignment changes ease pain?

There is no reliable timeline. One trial reported improvements after four weeks, but that isn’t a promise for your symptoms. [9] Agree on what progress would look like and when to review it with your clinician. If symptoms persist or worsen, reassess the plan rather than assuming your feet need more correction.

Could a foot assessment help you understand the problem?

You don’t need perfectly shaped arches to have a comfortable, active life. If back pain keeps returning alongside foot discomfort or difficulty walking, a careful assessment may help you work out whether a foot problem needs care.

Book an appointment at our London clinic and bring the shoes you wear most often. Tell us what you want to get back to doing, whether that’s a comfortable commute or a longer weekend walk.