Can Flat Feet Cause Knee Hip and Lower Back Pain

Can Flat Feet Cause Knee Hip and Lower Back Pain

Flat feet are often treated as a foot-specific problem, but the effects can go much higher up the body. If the arches of the feet remain flat when standing or walking this can influence the position and movement of the ankles. This can eventually affect how the knees, hips and lower back deal with everyday movement. 
 
Yes, flat feet can cause knee, hip and lower back pain especially if the condition is associated with altered walking mechanics, excessive inward rolling of the foot (overpronation), muscle weakness or poor lower limb alignment. However, having flat feet doesn't necessarily mean that a person will develop pain. Many people have flat feet and never have any symptoms. 
 
It is more useful to understand why pain happens, rather than just blaming the shape of the foot. 
 

How Flat Feet Can Affect the Rest of Your Body 

 
The feet are the foundation of the lower body Each time you walk, run, climb stairs or stand, forces travel from the feet through the ankles, knees and hips toward the pelvis and spine. 
 
When weight is put on flat feet the arch may fall more than usual. In some people this causes the foot to roll inward and the lower leg to rotate with it. It can subtly change the way the knee and hip move. If these changes happen again and again then some muscles and joints may have to work harder to keep you stable. 
 
 
This is one reason why physiotherapy for flat foot can work not only on the feet but also on the ankles, calves, knees, hips and overall movement pattern. 
 
 

Do Flat Feet Cause Knee Pain? 

 
Yes, some people with flat feet experience knee discomfort. Too much inward rolling of the foot can influence the position and movement of the lower leg and may add stress to the knee. 
 
 
The risk is more apparent in people who stand for long periods, participate in running or jumping sports, have weak hip muscles, or have other alignment or mobility issues. 
 
 
Some usual signs can be: 
 
  • Pain behind your kneecap or on the inside of your knee 
  • knee pain after long walks or standing for long periods of time 
  • Pain on ascending and descending stairs 
  • Increased pain with running or squatting 
  • Feeling of weakness or unsteadiness in the leg 
 
But there are many possible causes of knee pain. It is important to make a proper assessment before assigning matters to flat feet. Knee pain physiotherapy can include strengthening, mobility work, movement re-education and exercises looking at the whole lower-limb chain depending on what the findings are. 
 
 

Do Flat Feet Cause Hip Pain? 

 
Flat feet are not as closely linked to hip pain, but abnormal foot mechanics can affect the way the leg and pelvis move. 
 
 
If the foot repeatedly rolls inward, the shin and thigh can rotate differently when you walk or run. Then the hip muscles must control the leg and pelvis movement. Discomfort in the hip area or outer thigh may result from weakness or overuse of these muscles. 
 
 
When people might notice symptoms: 
 
  • Longer duration of running or walking 
  • Standing for long periods 
  • Upstairs 
  • Single-leg exercises 
  • Getting back in shape after an injury 
 
If the person already has a hip problem, then the treatment should be aimed at the causative factor and not just simply assume that flat feet are the only cause. Treatment of a hip injury with physiotherapy may include strengthening the hip, balance training, movement correction, and rehabilitation of the foot and ankle. 
 
 

Can Flat Feet Lead to Lower Back Pain? 

 
Changes in lower-limb and pelvic mechanics can result from flat feet and may lead to lower back pain. When the feet and legs move in an altered pattern repeatedly, the pelvis and trunk can compensate to maintain balance and efficient movement. 
 
This does not mean that all flat-footed people will get back pain. Lower back pain can be caused by many things including prolonged sitting, lifting technique, decreased strength, spinal problems and lifestyle habits. 
 
If foot mechanics seem to be contributing to the symptoms, then a physiotherapist for back pain can assess the relationship between the feet, legs, pelvis and spine rather than treating the painful area in isolation. 
 

How Do You Know If Flat Feet Are Affecting Your Alignment? 

Flat feet are more likely to be a concern when there is a history of recurrent symptoms or obvious changes in the way you walk. 
 
Look out for: 
 
  • Walking fatigue of foot or arch. 
  • Pain in the ankle or lower leg, frequent 
  • Shoes with uneven wear 
  • knees that seem to be caving in while squatting 
  • Repeated knee, hip or lower back pain 
  • Decreased balance when standing on one leg 
  • Difficulty walking or exercising for long periods of time 
 
These signs aren't proof that flat feet are the cause, but they can suggest that an assessment may be useful. 
 

How Is the Pain of Flat Foot Assessed? 

A good assessment will look past the appearance of the foot. A physiotherapist may look at standing posture, walking mechanics, single leg balance and lower limb movement. 
 
Assessment can include: 
 
  • Foot and Ankle Assessment: Arch mechanics, ankle range of motion and muscle activation evaluation. 
  • Walking and movement assessment: Too much pronation and other movement patterns. 
  • Knee and hip assessment: Strength, mobility and alignment. 
  • Core and pelvic control. Is there weakness or poor control as a contributing factor. 
  • History of activity: When the pain occurs and what activities improve or worsen it. 
 
This allows the development of an individualised treatment plan rather than a one-size-fits-all treatment. 
 
 

What does flat feet physiotherapy entail? 

 
Treatment is based on the individual’s symptoms, foot structure, strength, activity level and movement pattern. Treatment is not needed in all flat feet. Exercises should be prescribed on the basis of the findings. 
 
 
A flatfoot physiotherapy treatment may include: 
 
  • Strengthening the intrinsic foot muscles 
  • Ankle and calf mobility exercises 
  • Balance & proprioception training 
  • Increasing power to the hip and lower limb 
  • Improved squat, walking or running mechanics 
  • Return to sport and physical activity gradually 
  • Recommendations for footwear and activity modification when appropriate 
 
A physiotherapist may sometimes recommend seeking advice from an appropriate healthcare professional regarding orthotic support, particularly if symptoms are still present despite rehabilitation. 
 

Flat Feet Physiotherapy Exercises That May Help 

The right exercises are different for everyone, but rehabilitation exercises that are commonly used may include: 
 
  • Short-foot exercise: Pull the ball of the foot toward the heel without lifting it off the ground. 
  • Calf raises: Strengthening the calf and ankle muscles with controlled alignment of the foot. 
  • Single-leg balance: Builds stability in the foot, ankle and hip. 
  • Calf stretching: To target limited ankle mobility as needed. 
  • Hip strengthening: Exercises such as controlled bridges or side-lying hip strengthening can help improve lower limb control. 
 
Flat Foot physiotherapy exercises should be done in proper technique. If an exercise makes pain worse or causes new symptoms, it’s best to stop and seek professional guidance rather than work through it. 
 
 

When to Consult a Physiotherapist? 

 
If you have flat feet and ongoing feet, knee, hip or back pain, suffer frequent injuries, find it hard to take exercise or notice that your walking has changed, ask for an assessment. 
 
 
Early assessment is especially helpful for people who run, play sports, are on their feet a lot or have recently increased their activity level. 
 
 
A physiotherapist can assess if the foot mechanics are indeed contributing to the problem and identify other factors that may need addressing. 
 
 

The Final Word 

 
Flat feet may be a contributing factor for some people with knee, hip and lower back pain but are not always the root cause. More important than the appearance of flat arches, however, is how the feet actually function in motion. 
 
 
When symptoms are present, a thorough assessment of the feet, ankles, knees, hips and spine can help identify the contributing factors. Targeted strengthening, mobility work, balance training, and movement correction can then be applied to improve function and reduce unnecessary stress on the lower body. 
 
 
If the pain persists, don’t assume it’s because you have flat feet. A tailor-made physiotherapy assessment is a better way to pinpoint the root cause and work out the right treatment plan.