Podiatry is a branch of medicine that deals with the study, diagnosis, and treatment of foot and ankle conditions. There are various subdivisions in podiatry; biomechanics is one of them. Biomechanics is the way in which the bones, muscles, and joints of the feet and lower limb interact with each other.

Our feet play crucial roles in the way we move, and it is rare to have feet that are completely symmetrical. Common biomechanical issues include high or low arches or uneven leg heights. Excessive pronation often leads to fallen arches, or flat feet, and is a common cause of running injuries. People whose feet are over-pronated tend to have flexible and unstable feet. Pain is usually experienced during walking and running.

At times, people may be able to adapt to these abnormalities without any difficulties, but in other cases, these issues can cause a great deal of pain. This pain occurs because the joints, muscles, ligaments, and tendons are put under an excess amount of stress during movement. Common symptoms of biomechanical problems stemming from the feet include hip pain, knee pain, leg cramps, ankle pain, lower back pain, weak ankles, tripping, heel pain, Achilles pain, and shin splints.

Many biomechanical issues can be treated with orthotics. Orthotics are shoe insoles that are used to help control the way the foot operates.  They can provide relief from foot pain, heel pain, and knee pain. Depending on your specific case, you may need to purchase over-the-counter orthotics or custom orthotics to fit your feet. Your podiatrist will be able to prescribe the perfect orthotic for your feet to help you walk around with ease.

Gait is defined as the way we move our bodies from one point to another. This is usually done by either walking or running. Gait analysis is a method used to assess the way we walk or run to highlight biomechanical abnormalities. Gait analyses are a great way to take a detailed look at how you walk and how your foot moves while you walk. An examination of the feet will help your podiatrist understand why you are suffering pain in other parts of your body.

Our bones are important aspects of our body and they are constantly changing. The heavier the workload for a bone, the more likely it is that calcium will be placed in it. When a bone isn’t used often, there won’t be much calcium within it. When stress from repetitive loads prevent the bone from being able to repair itself, cracks will start to form. Stress fractures are defined as cracks in a bone that result from repetitive force, such as overuse.

The most common cause of stress fractures is a sudden increase in intensity and duration of physical activity. For example, if you begin to run long distances without working your way into doing so, you will be more likely to develop a stress fracture.

Common symptoms of stress fractures are pain and swelling near the weight bearing area on the injured bone. When initial x-rays are performed, it is possible that the fracture will not show up. However, once the stress on the area continues, the damage will increase, and the fracture will be severe enough to show up on an x-ray. Certain parts of the foot are more likely to develop stress fractures than others. Areas that typically have these fractures are: the metatarsals, the navicular bone, the calcaneus, tibia, and fibula.

Since women are at an increased risk of developing osteoporosis, they are twice as likely as men to sustain a stress fracture. Additionally, old age causes a decrease in bone mineral density which is why elderly people are also likely to develop these fractures.

It is important for you to be professionally diagnosed by a podiatrist if you suspect you have a stress fracture, because there are other injuries that can easily be mistaken for a fracture.  Sprains, strains, shin splints, plantar fasciitis, and Morton’s neuroma can all easily be mistaken for stress fractures in the foot. Your podiatrist will likely ask you a series of questions to determine what type of pain you are experiencing. These questions will help your doctor identify whether you have a stress fracture.

The best method of treatment for a stress fracture is rest. Additionally, a walking boot, cast, or crutches, will help rest the area that is injured. The typical healing time for stress fractures is 4-12 weeks, however this depends on which bone is involved.

Morton's Neuroma, also called Intermetatarsal Neuroma or Plantar Neuroma, is a condition that affects the nerves of the feet, usually the area between the third and fourth toe. Neuroma refers to a benign growth that can occur in different parts of the body. Morton's Neuroma strictly affects the feet. This condition causes the tissue around the nerves that lead to the toes becoming thick, causing pain in the ball of the foot.

This condition can be caused by injury, pressure or irritation. Normally no lump will be felt, but instead burning pain in the ball of the foot will be experienced. Numbness and tingling may also occur. With the onset of this condition, a person may feel pain when tight or narrow shoes are worn. As the condition worsens, the pain may persist for days, or even weeks.

Persistent foot pain should always be a concern. The foot should be examined by a podiatrist if pain persists longer than a few days with no relief from changing shoes. The earlier the foot is examined and treated, the less chance there will be for surgical treatment.

There are some factors that can play a role in the development of Morton's Neuroma. These include wearing ill-fitting shoes that cause pressure to the toes, such as high heels. Also, high impact exercise may contribute to the cause of this condition. Morton’s Neuroma may also develop if the foot sustains an injury. Another cause includes walking abnormally due to bunions or flat feet. This causes excessive pressure and irritates the tissue. At times, people are affected for no determinable reason.

Podiatrists can alleviate the effects of this condition using a treatment plan to help decrease the pain and heal the foot tissue. Depending upon the severity of the Morton's Neuroma, the treatment plan can vary. For cases that are mild to moderate, treatments may include applying padding to the arch to relieve pressure from the nerve and reduce compression while walking. Ice packs can also help reduce swelling. The podiatrist may also create a custom orthotic device to support the foot and reduce compression and pressure on the affected nerve. The doctor will probably advise against partaking in activities that cause constant pressure on the affected area. They may provide wider shoes to ease the pressure from the toes. If these treatments do not relieve the symptoms of this condition, the doctor may use injection therapy.

Surgical treatment may be recommended by the podiatrist if all other treatments fail to provide relief. Normally, the podiatric surgeon will decide on either a surgical procedure that involves removal of the affected nerve or will choose surgery to release the nerve. After examination, the surgeon will decide on the best approach to treat the problem.

Recovery varies according to the type of surgical procedure. The patient will also be instructed on the best shoe wear to prevent the return of this condition, along with changes to workout routines, if this was a cause. Preventative measures are important in ensuring the condition does not return.

Foot and ankle pain can be a nuisance in a person’s life, especially if it happens frequently. The best way to prevent this type of pain, is to exercise often. Regular exercise of the foot includes stretching and strength exercises. Stretching exercises can help prevent injuries such as a sprained ankle, while strength exercises can prevent ailments such as plantar fasciitis.

Stretching exercises can help improve flexibility and the foot and ankle’s range of motion. These exercises can certainly help with those who participate in high-energy activities such as sports. Many athletes routinely perform foot and ankle exercises to prevent injuries like sprained ankles, which are common injuries where the tendons in the ankle are over stretched. Strength exercises help develop foot muscles for better support and protection.

Most exercises are simple and can be done at home, either standing or sitting. One chair exercise is called “limber up”. In this exercise, a person would start by sitting down with their feet flat on the floor. Then lift one leg up so the feet are not touching the floor, then rotate your foot clockwise 15-20 times, and 15-20 times counterclockwise. Repeat the same process with the opposite leg. Another sitting exercise helps stretch the back of your heel and requires an exercise band. It begins by looping the band around a heavy piece of furniture, or something stable that will not be moved when the band is tugged or pulled. Then sit directly in front of it, and slide one foot into the loop, so that the band curves around the forefoot. Start by pulling the forefoot back and holding it for 5-10 seconds. Doing this 10-15 times on each foot, will stretch the back of your heel, increasing your flexibility.

Foot exercises that require standing are also just as easy and simple. Referred as the “Achilles Stretch”, this exercise stretches the Achilles tendon, making it more flexible, helping prevent foot, ankle, and leg pain. It begins by first standing and facing the wall, with the arms outstretched and the palms on the wall. Then place one foot behind another keeping the back leg straight, and the forward leg bending at the knee. Make sure both heels are flat on the floor and adjust your stance accordingly. With your hips, lean forward to feel the stretch, you can also adjust the distance from your feet to feel the stretch in various parts of the calf. Make sure to hold the stretch for about 30 seconds and repeat the same process 3 times with each leg. An even easier foot exercise is simply walking on sand. Walking barefoot on sand both strengthens and stretches your feet.

Doing these exercises regularly can help prevent many foot and ankle problems. Other foot exercises can even relieve pain. For example, those affected with plantar fasciitis can simply sit down on a chair, and then place a tennis ball below their affected foot. By rolling the ball under the foot, and increasing or decreasing pressure, pain will be relieved. With any exercise, it is always important to do a small warmup such as walking a few laps around the house to get the blood flowing. If after doing an exercise to relieve pain such as the tennis ball exercise, or are unsure that your execution is correct, be sure to contact a podiatrist for further instruction.

Ankles are joints that connect bones in the feet with bones in the lower leg. They are comprised of bones, ligaments, muscles, tendons, blood vessels, and nerves. The ankle joint allows the foot to move side-to-side, as well as up-and-down.

Ankle pain can be caused by a variety of conditions, but is most commonly due to soft tissue injuries such as ankle sprains and strains. 

An ankle sprain occurs when one or more of the strong ligaments that support and stabilize the ankle become overly stretched or even torn if the ankle rolls, turns, or twists awkwardly. Depending on the grade of sprain (mild-moderate-severe), there will be varying degrees of pain, swelling, and restricted range of motion, along with tenderness, bruising, and ankle instability. There may even be an audible popping noise at the moment of injury.

Ankle strains can sometimes produce similar symptoms of pain, swelling, and loss of motion, however, they are due to overly stretched muscles and tendons—not ligaments. Ankle strains may also cause muscle cramps in the feet, calves and shins.

Ankle fractures are another common source of ankle pain and occur one or more of the three bones in the ankle become fractured (broken). These breaks can be stress fractures (due to repetitive stress) or traumatic fractures (due to an acute injury). Depending on where and how severe the fracture is, symptoms can include pain and swelling that can sometimes spread up to the knee, bruising or discoloration, and an inability to bear weight. A visible deformity or exposed bone may occur in severe fractures.

Various forms of arthritis may also cause ankle pain. Rheumatoid arthritis (RA) causes the immune system to attack healthy joints, like the ankle joint, by mistake, causing stiffness and swelling in both ankles. Osteoarthritis occurs when cartilage covering the ends of bones wears down, causing the bones to rub against each other. This results in pain, stiffness, and reduced range of motion in the ankle. Gout is a form of arthritis where excess amounts of uric acid in the bloodstream crystallize and build up on joints, causing severe pain and swelling. Reactive arthritis causes joint pain and swelling in the ankle in response to an infection in another part of the body.

Other forms of ankle pain include bursitis (an inflammation of a cushioning bursa sac between tendons and bone), scleroderma (a thickening of connective tissues), chronic ankle instability (caused by improperly healed ankle sprains), Achilles tendon injuries, flat feet, or an infection in the ankle.