How to tell if plantar fasciitis is caused by shoes or posture

How to tell if plantar fasciitis is caused by shoes or posture

I often hear people ask whether plantar fasciitis is “from my shoes” or “from my posture.” It’s a great question because the answer isn’t always either-or — both can contribute. Over the years I’ve worked with clients and tested routines on myself, and I’ve learned to look for certain patterns that point more strongly to footwear problems versus biomechanical or postural issues. In this article I walk you through those patterns, simple checks you can do at home, and practical steps to try so you can target the right fixes.

How plantar fasciitis typically feels

Before we start attributing causes, let’s be clear about the symptom pattern most people describe: pain at the heel or the arch, often worst with the first steps in the morning or after long periods of rest. The pain can be sharp or a deep ache and usually eases after a bit of walking, then can return later in the day with prolonged standing or activity. That basic picture is common whether shoes, posture, or something else is the main driver.

Signs that shoes are the main culprit

When shoes are primarily responsible, you’ll often notice predictable clues:

  • Pain worsens when you switch to a different type of shoe (for instance, from sneakers to flats or high heels).
  • The issue started after you began wearing a new pair — maybe new work shoes, a new running shoe model, or fashion footwear with poor support.
  • The shoes show obvious structural problems: compressed midsoles, collapsed arch support, or uneven wear across the heel.
  • You spend long periods on hard surfaces (concrete retail floors, hospital shifts) and the shoes have thin midsoles or little cushioning.
  • You feel immediate relief switching into more cushioned, supportive shoes (for example, a max-cushion trainer like Hoka or a supportive walking shoe like Brooks).
  • If several of those apply, footwear is a strong suspect. Shoes that are too flat, too stiff in the right places, or worn out fail to manage load on the plantar fascia. Conversely, very soft, unsupportive shoes (think cheap ballet flats or flimsy sandals) can allow excessive stretching of the fascia.

    Signs that posture or mechanics are the main cause

    Posture and movement patterns — how your foot, ankle, knee, hip, and spine work together — can place chronic extra load on the plantar fascia. Look for these signs:

  • Pain is linked to changes in activity or movement patterns rather than footwear changes (e.g., you started a new running program, increased mileage, or began standing more at work).
  • You have a history of ankle stiffness, tight calves, or limited dorsiflexion (the ankle’s ability to bend upward). Tight calves transmit more load to the plantar fascia.
  • You overpronate (your foot rolls inwards) or have a very high arch; both change how load is distributed across the foot.
  • Pain improves after mobility, strengthening, or gait changes even if shoes remain the same.
  • There are other postural issues: one hip that seems higher, chronic back tightness, or one leg appearing shorter — all can shift loading patterns down to the foot.
  • When movement mechanics are the driver, simply changing shoes might provide short-term relief but not a lasting fix. The root is how forces travel up and down your kinetic chain.

    Simple at-home checks to help you decide

    Try these quick tests to see which factor might be stronger:

  • Walk barefoot on different surfaces: tile, carpet, and grass. If barefoot walking on soft surfaces relieves pain, footwear may be amplifying the problem. If barefoot walking is equally painful, there’s likely a mechanical component.
  • Wear supportive shoes for a full day (sturdy sneakers, supportive sandals like Birkenstock, or shoes with removable insoles where you can add Superfeet). If your pain drops dramatically, shoes were a major factor.
  • Do a calf stretch test: stand facing a wall, bend one knee and keep the back leg straight with heel down — if you feel a strong limitation in ankle dorsiflexion (<10-15 degrees), calf tightness is likely contributing.
  • Check wear patterns on your shoes: inside heel collapse or more wear on the medial side suggests pronation; worn outer edge suggests supination. Pronators often overload the plantar fascia differently than neutral foot types.
  • A simple comparison table

    Feature Suggests Shoes Suggests Posture/Mechanics
    Pain onset After getting a new shoe or spending long hours in a particular shoe After changing activity, increasing mileage, or developing other movement issues
    Response to supportive shoes Immediate and clear reduction in pain Partial or temporary relief only
    Shoe condition Visible midsole collapse, uneven wear Shoes may look normal
    Associated tightness Less calf/hip involvement Calf tightness, limited ankle dorsiflexion, hip asymmetry

    What to try next

    Real-life problems are usually mixed. Here’s a pragmatic plan I recommend — start with the low-effort, high-likelihood fixes and add targeted mechanical work if symptoms persist.

    1. Audit your footwear

  • Rotate shoes — avoid wearing the same pair every day. That lets midsoles rebound and reduces load concentration.
  • Look for shoes with adequate arch support and responsive cushioning. For many people Hoka, Brooks, New Balance, and Asics offer supportive models. For casual wear, supportive sandals (Birkenstock) or orthotic-friendly shoes matter.
  • Replace shoes every 300–500 miles for running or 6–12 months for daily wear, depending on use.
  • 2. Use temporary orthotic support

  • Try over-the-counter insoles (Superfeet, PowerStep) or a simple heel cup to reduce strain. They can be a quick diagnostic tool: if they help, structural support is part of the story.
  • 3. Address calf and ankle mobility

  • Daily calf stretches: both straight-knee (gastrocnemius) and bent-knee (soleus) stretches, 2–3 sets of 30 seconds each.
  • Ankle mobilizations: gentle knee-to-wall dorsiflexion work — aim for 10–15 reps each side.
  • 4. Strengthen the foot and posterior chain

  • Short foot exercise: lifting the arch without curling toes, 2–3 sets of 10–20 reps.
  • Heel raises (double then single-leg), slow and controlled, 2–3 sets of 8–15 reps.
  • Glute bridges and hip strengthening to improve overall gait mechanics.
  • 5. Modify activity wisely

  • Reduce high-impact activities for a period and substitute with low-impact cross-training (cycling, swimming).
  • Gradually reintroduce loading — sudden increases are a common trigger.
  • When to see a clinician

    If your pain is severe, persistent beyond 6–8 weeks despite reasonable self-care, or accompanied by numbness, see a professional. A physiotherapist experienced in biomechanics can assess gait, ankle mobility, and hip control and prescribe individualized exercises. Podiatrists can provide custom orthotics if off-the-shelf options don’t help. Imaging isn’t always necessary but can be useful if symptoms don’t respond to conservative care.

    Practical examples from my experience

    I’ve had clients whose plantar pain disappeared overnight after swapping from worn-out flats to a supportive pair of trainers and using a temporary orthotic — a clear shoe-driven case. Others needed a combination: shoe changes plus a 6-week program of calf stretching and glute strengthening before they saw lasting improvement. And once, a runner thought shoes were the problem until gait analysis revealed a stiff ankle from old sprains; mobility work fixed the root cause more than any shoe did.

    Bottom line: look for patterns. If a simple shoe change brings big relief, start there. If not, invest time in mobility, strength, and gait correction. Both approaches are often needed together, and that’s OK — sensible footwear and better mechanics make a strong team for getting you back to pain-free steps.


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