Do Arch Support Insoles Help Plantar Fasciitis?

Arch support insoles may help some people with plantar fasciitis by supporting the midfoot, redistributing pressure and reducing excessive strain through painful or overloaded areas of the foot.

They can be particularly useful when heel pain is associated with a low arch, excessive foot movement or insufficient support from existing footwear. However, arch support is not the only consideration. Heel cushioning, footwear fit, activity levels and the underlying cause of the pain can all influence which insole is most appropriate.

NHS plantar fasciitis guidance commonly recommends supportive footwear containing both arch support and heel cushioning. Insoles or orthotics may also form part of a wider treatment plan alongside stretching and activity management.

Quick Answer

Arch support insoles may help plantar fasciitis by supporting the arch and reducing stress through the sole of the foot during standing and walking. They are most likely to help when insufficient support or excessive foot movement contributes to the symptoms, but they should usually be combined with suitable footwear, stretching and sensible activity management.

Why Might Arch Support Help?

The plantar fascia is a strong band of tissue that runs beneath the foot from the heel towards the toes and contributes to the structure of the arch.

When the foot is repeatedly loaded during walking, running or prolonged standing, the plantar fascia is placed under tension. For some people, insufficient arch support or excessive movement may increase stress through the heel and sole of the foot.

An appropriately shaped arch support may help by:

  • Supporting the midfoot
  • Redistributing pressure beneath the foot
  • Improving stability inside the shoe
  • Reducing stress through painful areas
  • Limiting excessive inward movement where relevant
  • Improving comfort during standing and walking

Insoles generally work by supporting or cushioning the foot, changing pressure distribution or influencing how the foot functions during movement.

Who May Benefit From Arch Support Insoles?

Arch support insoles may be worth considering if you:

  • Experience heel or arch pain during walking
  • Have low arches or symptomatic flat feet
  • Notice your feet rolling inwards excessively
  • Spend long periods standing
  • Require more support than a flat cushioning insole provides
  • Experience recurring plantar fasciitis
  • Wear shoes with little existing arch support
  • Have been advised to try an orthotic by a clinician

Foot shape alone does not determine whether an insole is required. Some people have naturally low or high arches without pain, while others experience symptoms despite appearing to have a relatively neutral foot posture.

The aim should be improved comfort and function rather than trying to make every foot look the same.

Does More Arch Support Mean Better Support?

Not necessarily.

An arch support should make contact with the foot comfortably without creating a sharp or concentrated pressure point.

A support that is too high or firm may:

  • Feel painful beneath the arch
  • Cause rubbing or skin irritation
  • Make the shoe feel unstable
  • Transfer pressure to another area
  • Be difficult to tolerate for long periods

A support that is too soft or low may feel comfortable but provide insufficient structure for somebody requiring greater biomechanical control.

The most appropriate level depends on:

  • Your arch shape
  • Your symptoms
  • Your body weight
  • Your activity levels
  • The flexibility of your foot
  • The type of footwear being used
  • Whether cushioning or control is the main requirement

This is why orthotic insoles are available in different shapes, materials and densities.

Arch Support vs Heel Cushioning

Both features may be useful for plantar fasciitis, but they perform different roles.

Arch Support

Arch support primarily aims to:

  • Support the midfoot
  • Improve stability
  • Influence pressure distribution
  • Manage excessive movement
  • Reduce loading through overloaded areas

Heel Cushioning

Heel cushioning primarily aims to:

  • Absorb impact
  • Reduce pressure beneath the heel
  • Improve comfort on hard flooring
  • Cushion the painful area
  • Reduce standing-related fatigue

Some people require mainly cushioning, while others benefit from a structured orthotic containing both arch support and shock-absorbing materials.

NHS guidance recommends supportive footwear with arch support, heel cushioning and a shock-absorbing insole rather than relying on one feature in isolation.

Read the full comparison:

Cushioning Insoles vs Orthotic Insoles

Can Arch Supports Cure Plantar Fasciitis?

Arch support insoles should not be described as a guaranteed cure.

They may reduce discomfort and help manage loading through the foot, but plantar fasciitis can be influenced by several factors, including:

  • Sudden increases in activity
  • Prolonged standing
  • Unsupportive footwear
  • Tight calf muscles
  • Running or working on hard surfaces
  • Foot posture
  • Body weight
  • Reduced recovery between activities

For this reason, insoles are normally used as one part of a broader management programme rather than as the only treatment.

Stretching, supportive footwear, load management and gradual rehabilitation may all remain important.

Full-Length vs Three-Quarter-Length Arch Supports

Both formats may provide useful support.

Full-Length Insoles

A full-length insole extends beneath the whole foot and may provide:

  • Arch support
  • Heel cushioning
  • Forefoot cushioning
  • More continuous pressure distribution
  • Greater comfort in trainers and deeper footwear

They usually require sufficient room inside the shoe and may work best when the existing liner can be removed.

Three-Quarter-Length Insoles

A three-quarter-length support ends behind the forefoot and may be easier to use inside:

  • Formal footwear
  • Shoes with limited toe-box space
  • Footwear without removable liners
  • Shallower everyday shoes

The correct option is the one that sits securely without compressing the toes or causing the heel to slip out of the shoe.

Can People With High Arches Use Arch Supports?

Potentially, but the support must suit the individual foot.

People with high arches may experience reduced natural shock absorption or concentrated pressure beneath the heel and forefoot. A supportive insole may therefore need to combine appropriate arch contact with cushioning and pressure relief.

An excessively aggressive arch shape may be uncomfortable, particularly if the foot is relatively rigid.

People with high arches, unusual foot shapes or recurring pain may benefit from professional assessment rather than selecting an insole based only on shoe size.

Why Choose The Bio Advanced Full Length Insole?

The Bio Advanced Full Length Insole is a flexible EVA foot orthotic designed to combine structured biomechanical support with everyday cushioning.

Key features include:

  • Flexible EVA construction
  • Different support densities
  • Intrinsic 4° rearfoot support
  • Integrated metatarsal raise
  • Sustentaculum tali support
  • Antimicrobial microfibre top cover
  • Full-length pressure distribution
  • Heat-mouldable, grindable and trimmable construction
  • Additional components for further customisation

Its structured design supports the arch and rearfoot while the full-length profile provides cushioning across the sole. Orthotix lists the insole for uses including plantar fasciitis, overpronation, low arches, pressure relief and tired feet.

How Should Arch Support Insoles Feel?

A new structured insole may feel noticeable beneath the arch, especially when first introduced. However, it should not produce sharp pain or severe pressure.

A suitable insole should:

  • Sit flat inside the shoe
  • Make comfortable contact with the arch
  • Keep the heel stable
  • Leave sufficient room for the toes
  • Avoid creating rubbing or skin irritation
  • Allow the shoe to fasten securely

It is generally sensible to introduce structured insoles gradually. NHS guidance recommends beginning with a short period of wear and increasing the duration progressively over approximately one to two weeks.

Stop using the insole and seek advice if it causes definite joint pain, severe aching, persistent rubbing or worsening symptoms.

Are Arch Supports Suitable For Every Type Of Footwear?

No. The insole and shoe must work together.

Suitable footwear should ideally provide:

  • Enough internal depth
  • A secure lace, strap or fastening
  • A firm heel counter
  • Adequate width around the forefoot
  • Sufficient toe room
  • A removable existing liner where possible
  • A stable sole

Placing a structured insole inside a very shallow, narrow or flexible shoe may make the footwear uncomfortable and prevent the support from sitting correctly.

Where possible, take the insole with you when trying on new footwear.

When Might Arch Supports Not Be Enough?

Professional assessment may be helpful when:

  • Pain is severe or persistent
  • Symptoms repeatedly return
  • One foot behaves very differently from the other
  • There is significant deformity
  • The foot requires targeted pressure relief
  • Standard arch supports remain uncomfortable
  • There is numbness or reduced sensation
  • The foot has recently changed shape
  • Previous insoles have worsened symptoms

A podiatrist or orthotist can assess foot posture, joint movement, walking pattern, footwear and pressure distribution before advising whether an off-the-shelf or custom device is more appropriate.

Other Ways To Manage Plantar Fasciitis

Arch support insoles may be combined with:

  • Supportive footwear
  • Heel cushioning
  • Plantar fascia stretches
  • Calf stretches
  • Gradual activity modification
  • Avoiding prolonged barefoot walking
  • Night splints where appropriate
  • Rehabilitation exercises
  • Professional assessment for persistent symptoms

Insoles are normally most effective when the other factors contributing to the problem are also addressed.

Continue Reading

Best Insoles For Plantar Fasciitis

What Are Orthotic Insoles Used For?

Can Orthotic Insoles Help Overpronation?

Off-The-Shelf vs Custom Orthotics

How Long Do Orthotic Insoles Take To Work?

Cushioning Insoles vs Orthotic Insoles

Our Recommended Support

Bio Advanced Full Length Insole

The Bio Advanced Full Length Insole is a flexible EVA orthotic designed to provide structured arch and rearfoot support while maintaining full-length cushioning. Its range of densities and customisable construction makes it a versatile option for plantar fasciitis, low arches, overpronation and related biomechanical concerns.

Product:

Bio Advanced Full Length Insole

When Should You Seek Professional Advice?

Seek advice from a GP, podiatrist, physiotherapist or orthotist if your heel or arch pain:

  • Is severe or becoming worse
  • Repeatedly returns
  • Affects normal walking or work
  • Does not improve with appropriate self-management
  • Is accompanied by swelling or redness
  • Occurs with numbness, tingling or weakness
  • Follows a sudden injury
  • Is associated with a change in foot shape

People with diabetes, reduced circulation or impaired sensation should obtain professional advice before independently using corrective or strongly contoured insoles.