Common Causes of Overpronation

Overpronation is a common foot condition that occurs when the arches of the foot roll inward excessively during walking, standing, or running. While some degree of pronation is normal and even necessary for shock absorption, overpronation can disrupt the alignment of the entire lower body. Over time, it may lead to pain in the feet, ankles, knees, hips, and even the lower back.

Understanding the causes of overpronation is the first step toward finding effective solutions—whether that means changing your footwear, adjusting your activity level, or seeking medical advice. Below, we explore the most common causes of overpronation and the factors that can contribute to this often-overlooked biomechanical issue.

The foundation of your gait begins with the structure of your feet. Some people are simply more prone to overpronation due to inherited characteristics or structural changes that occur over time.

Flat feet

Flat feet (also known as pes planus) are among the most frequent causes of overpronation. In people with flat feet, the arch either doesn’t develop properly or collapses under weight-bearing activities.

Why this matters: The arch of the foot acts as a natural spring and shock absorber. Without it, the entire foot flattens against the ground during movement, causing excessive inward roll and poor weight distribution.

Signs you may have flat feet:

Here sign you may have flat feet:

Your entire foot makes contact with the ground when standing
You often feel foot fatigue or pain after standing or walking
Your shoes wear unevenly, especially on the inside edges

Low or flexible arch

Even if your foot doesn’t appear completely flat, having a low or flexible arch can still cause problems. In this case, the arch may appear in a seated or non-weight-bearing position but collapses during walking or running.

Why this matters: A low or flexible arch can provide insufficient support for the rest of your body, especially under physical stress. This often leads to instability, overuse injuries, and joint pain.

Loose ligaments or hypermobile joints

People with loose ligaments or hypermobile joints (sometimes linked to connective tissue conditions like Ehlers-Danlos Syndrome) may experience unstable foot mechanics. This makes them more vulnerable to overpronation, especially during high-impact activities.

Why this matters: Even minor instability at the arch or ankle level can change the alignment of the whole kinetic chain, including the knees and hips.

Weak ankle muscles

Your muscles play a key role in stabilizing the foot and ankle. When specific muscles are weak or imbalanced, they can no longer support proper biomechanics.

The posterior tibialis runs along the inside of your ankle and plays a major role in supporting the arch. If this muscle is weak or injured, the arch can collapse inward during movement.

Why this matters: Posterior tibial dysfunction is a major contributor to acquired flatfoot and often leads to progressive overpronation if left untreated.

Weak hips and core muscles

Though not located in the foot, weak hips and core muscles can affect how your legs move and how your feet strike the ground. Poor control at the hip level often results in excessive inward rotation of the leg, which contributes to overpronation at the foot.

Why this matters: If your hip muscles (like the glutes) are weak, your legs may internally rotate too much during each step, increasing strain on your arches and ankles.

Environmental and lifestyle factors

Beyond anatomy and muscle strength, there are environmental and lifestyle factors that can cause or worsen overpronation. Shoes that lack adequate arch support, have uneven wear patterns, or provide too much cushioning can contribute to overpronation.

Why this matters: When your shoe doesn’t stabilize your foot properly, your arch can collapse more than it should. Minimalist shoes, flip-flops, or shoes with soft, overly flexible soles can allow excessive foot motion.

Tip: Always replace shoes every 300–500 miles of use (especially for running shoes) and choose footwear based on your foot type and activity level.

Standing for long hours

Standing for long hours on hard floors (like concrete) without supportive footwear can fatigue the arch, particularly in occupations like teaching, nursing, retail, or factory work.

Why this matters: Even if your arches are healthy, fatigue from long-term standing or walking on unforgiving surfaces can lead to progressive arch collapse and, eventually, chronic overpronation.

Extra body weight

Carrying extra body weight significantly increases the load placed on your feet and arches, especially during weight-bearing activities like walking or running.

Why this matters: The increased pressure can gradually flatten the arches, especially if you already have flexible feet or weak foot muscles. This is particularly common in adults who gain weight rapidly due to medical conditions or lifestyle changes.

Pregnancy

Pregnancy causes hormonal changes—specifically the release of relaxin—which can loosen the ligaments of the feet. This, combined with weight gain and fluid retention, may lead to a temporary flattening of the arches.

Why this matters: Although often temporary, the changes can be significant enough to alter a woman’s gait and cause symptoms like foot fatigue, arch pain, and overpronation that may persist postpartum.

Injuries

Injuries—especially if not treated properly—can cause the body to develop compensation patterns that place excess stress on the feet and change how you walk or run.

Sprains, fractures, or tendon injuries can lead to instability or reduced range of motion. As the body compensates, the gait may change, leading to altered foot mechanics such as overpronation.

Even injuries higher up in the body can change foot strike patterns. Limping, reduced stride, or changed foot angles are all common after knee surgery, hip arthritis, or joint replacement—potentially leading to or worsening overpronation.

Genetics

Some individuals are genetically predisposed to overpronation due to inherited foot shape, gait mechanics, or even posture. If one or both parents have flat feet or overpronation, there’s a higher likelihood their children will inherit similar traits.

Why this matters: Overpronation can show up early in life, even during childhood, especially if not corrected with proper footwear, orthotics, or therapy.

Delayed development of the arch

In some cases, delayed development of the arch, weak ankle control, or uncorrected gait abnormalities during childhood can lead to persistent overpronation later in life.

Common Signs of Overpronarion

Here are common signs and tests that may indicate overpronation:

Your inner shoe soles wear out faster than the outer edges
You notice your foot collapsing inward while walking or running

Your arches flatten noticeably during weight-bearing
You feel pain in the arch, heel, ankle, or shin after activity
You’ve been diagnosed with plantar fasciitis, shin splints, or runner’s knee

A gait analysis—performed by a podiatrist, physical therapist, or a specialty shoe store—can help confirm if you overpronate and to what degree.

How to resolve overpronation

In many cases, overpronation can be managed or improved with a combination of approaches:

Supportive footwear: Choose shoes with firm arch support and motion control features

Custom or over-the-counter orthotics: Help align the foot and prevent inward collapse
Strengthening exercises: Focus on arch, ankle, hip, and core stability
Stretching routines: Address tight calves or Achilles tendons

Physical therapy: Helps retrain gait and address underlying weaknesses
Weight management: Reduces load and strain on the arches

In more severe or progressive cases (such as adult-acquired flatfoot due to posterior tibial tendon dysfunction), medical intervention, bracing, or even surgery may be needed.