Flat Feet

What Are Flat Feet?

Flat feet is a common and usually painless condition that occurs when the arches of the feet flatten on standing, allowing the entire soles to touch the floor.

Babies are naturally flat footed, but most begin to develop arches when they start walking. If arches never develop, or if they collapse later in life, flat feet can cause pain or other problems with walking. The arches of the feet play an important role in the mechanics of walking upright.

While many people with flat feet experience no discomfort at all, others find that the condition contributes to pain, fatigue, and a range of issues further up the body. Because the feet are the foundation of every step, flat arches can affect alignment all the way through the ankles, knees, hips, and lower back.

Common Symptoms of Flat Feet

Many people with flat feet have no symptoms. When symptoms do occur, they may include:

• Pain or aching in the arch, heel, or inner ankle
• Feet that tire quickly during standing or walking
• Swelling along the inside of the ankle
• Difficulty standing on tiptoe
• Uneven shoe wear, particularly on the inner edge
• Pain in the knees, hips, or lower back linked to altered gait

Pain may worsen with activity. Swelling may occur along the inside of the ankle. If symptoms are severe, persistent, or accompanied by stiffness and difficulty walking, it is worth seeking professional advice.

What Causes Flat Feet?

Flat feet can occur during childhood if the arches of the feet don't develop, after an injury, or from the wear and tear of aging.

Genetics Some people inherit flat feet from their family. The condition can be congenital, present from birth or acquired later in life due to various factors.

Aging and Tendon Weakness The posterior tibial tendon, which supports the arch, may weaken over time, contributing to arch collapse in adults who previously had normal arches.

Injury or Trauma Damage to tendons or bones in the foot can lead to arch collapse, particularly following injuries to the ankle or foot.

Excess Body Weight Excess weight puts increased pressure on the arches, which over time can contribute to their flattening.

Prolonged Standing Running, walking, or standing on hard surfaces for extended periods can place repeated stress on the arch structures, particularly when footwear provides insufficient support.

Conditions Linked to Flat Feet

Because flat feet cause overpronation where the foot rolls inward excessively they are associated with a wide range of secondary conditions:

Though some people with flat feet don't experience discomfort, the condition does increase the risk of bone spurs, arthritis, bunions, and shin splints.

Other conditions commonly linked to flat feet include plantar fasciitis, Achilles tendonitis, knee pain, and hip pain, all as a result of the altered biomechanics that flat arches produce throughout the lower limb.

How Orthotics May Help Flat Feet

The AAOS states that orthotics can support a flatfoot and relieve pain, while the Mayo Clinic explains that arch supports don't cure flat feet but can alleviate the pain they cause.

Benefits may include:

Arch Support Orthopedic insoles are designed to fit into the shoe and support the arch, cushion the foot, and redistribute weight more evenly decreasing stress on the arch and nearby muscles and tendons.

Reduced Overpronation Arch support insoles can reduce peak ground reaction forces through the heel and improve medial-lateral control of the foot's centre of pressure, providing stability during walking.

Whole-Body Alignment Foot orthoses can alleviate symptoms of lower back pain, shin splints, and patellofemoral pain syndrome conditions frequently linked to the altered mechanics of flat feet.

Everyday Comfort Orthopedic insoles can provide support and change alignment in a way that relieves pressure on painful areas, making movement more comfortable on a day-to-day basis.

It is important to note that orthotics cannot rebuild the arch permanently or change the bone structure of the foot. The NHS states that shoe insoles may ease pain or stiffness, but do not alter foot shape. Insoles are better understood as a supportive tool, not a structural cure.

Who May Benefit From Orthotics?

Orthotics may be suitable for people who:

• Have flat feet that cause pain or fatigue in the feet, ankles, or legs
• Experience recurring conditions linked to flat arches such as plantar fasciitis or shin splints
• Spend long hours standing or walking on hard surfaces
• Participate in running or high-impact sport
• Have noticed uneven wear on the inner edge of their shoes
• Want to manage the secondary effects of flat feet on the knees, hips, or lower back

SOLE5 Orthotics for Flat Feet

SOLE5 orthotics are designed to provide structured arch support and cushioning while fitting comfortably inside a wide range of footwear.

Key features include:

• Arch support to reduce overpronation and improve whole-body alignment
• Heel stabilisation to control inward rolling at the ankle
• Shock absorption to reduce impact forces during walking and exercise
• Even pressure distribution across the foot
• Lightweight construction suitable for daily and athletic wear

Whether you're managing foot fatigue, recurring heel pain, or discomfort linked to flat arches, orthotics may help support your feet and reduce the strain associated with flat feet.

References

1. Mayo Clinic – Flat Feet Overview
2. American Academy of Orthopaedic Surgeons – Flatfoot Deformity
3. NHS – Flat Feet
4. Cleveland Clinic – Flat Feet