May Articles 2013
Biomechanics in Podiatry
Podiatric biomechanics is a particular sector of specialty podiatry with licensed practitioners who are trained to diagnose and treat conditions affecting the foot, ankle and lower leg. Biomechanics deals with the forces that act against the body causing an interference with the biological structure and focuses on the movement of the ankle, the foot and the forces that interact with them.
At some time in our lives we will all experience foot problems, regardless of our lifestyle or age, and we all take our mobility for granted until we are in pain. Twists or turns can cause problems and apply stress to the feet, and that pain will spread from the foot structure to the surrounding tissues. The pain will concentrate in the foot and ankle, but may eventually spread up into the knees, hips and back.
The history of biomechanics dates back to the BC era in Egypt where evidence of professional foot care has been recorded. Afterwards, during the first century AD, corns on feet were recorded as specifically growing on feet and toes. In 1974 biomechanics gained a higher profile from the studies of Merton Root, who claimed that by changing or controlling the forces between the ankle and the foot, corrections of conditions could be implemented to gain strength and coordination to the area. His basic principles of thermoplastic foot orthotics are still in use throughout the industry today.
Modern technology improvements are based on past theories and therapeutic processes providing a better understanding of podiatry concepts for biomechanics. Computers provide accurate determinations about the forces, movements and patterns of the foot and lower legs with the most important information captured. Today’s knowledge of detailed measurement of external and internal forces in the foot is critical to the individual’s treatment. Like most health industries, precise determinations assist the practitioner in diagnosing and prescribing the best treatment for health improving results.
Advances in materials and more awareness of biomechanics have developed enhanced corrective methods, offering further options for foot-related injuries. Shoe orthotics options have expanded to treat walking inability, helping to realign the posture deviations caused by hip or back health occurrences. Attention to posture and foot mechanics uses individual insoles to position the foot, aligning the ankle and leg. The corrected positioning comforts the pressure and helps to ease the pain. Understanding foot biomechanics can help improve and eliminate pain, stopping further stress to the foot. However, these results can only happen if one seeks a podiatrist who specializes in biomechanics.
The Importance of Proper Foot Support
Feet are the foundation of the body, and just like the foundation of any structure, they must be stable and balanced in order to support the all of the body's weight. If they are not, they could cause many problems.
Bad foot support can cause pain or discomfort in the lower back, hips, knees, neck, and shoulder. It can lead to much less obvious problems as well, like stomach aches and headaches. Issues with the feet can lead to emotional stress and physiological changes in the body, including fatigue, blood sugar problems, and adrenal stress. In order to avoid these issues, you must be sure to wear shoes that provide proper foot support.
Of all the different parts of the foot, the arch is the one that needs the most support. This vital structure handles most of the pressure exerted during movement--for each mile someone walks, the arch bears between 200,000 and 300,000 pounds of stress. Arch height varies greatly from one person to another, and changes as a person ages. Proper support can prevent many musculoskeletal problems that may cause inactivity or even disability.
When searching for footwear, one must remember to buy shoes that fit well and that properly support the feet. Otherwise, you could suffer from a slew of foot-related problems. If, for example, you buy shoes that are too tight, you could hinder the support mechanism in the foot that keeps the body standing upright. If this mechanism is not working correctly, you will soon begin to slouch when standing. This quickly causes discomfort throughout the entire body, especially the back, and if it is not corrected it may cause permanent posture issues and bone deformation.
When shopping for shoes, only buy those that provide good heel and arch support. Both the heel and arch areas need to be firm, but still flexible enough for walking. Also make sure the shoes you intend to buy are the proper length and width for your feet. Your feet and toes should not feel squished or cramped in the shoe, or (if it is an open-toed shoe) be hanging over its sides. Additionally, if you are looking for a laced shoe, be sure to buy one that has many eyelets. Laces help the shoes form to the feet, and having many eyelets allows the laces to better conform to your foot. Also make sure that the laces are tied correctly, as laces that are not pulled tightly and tied do not provide proper support.
Good foot health is vital to overall body health. If you do not care for your feet properly, you could suffer many short and long-term problems that will negatively affect your entire body. Wearing shoes that provide good foot support is an easy way to avoid these problems, and live comfortably.
Blisters on the Feet
If you have ever worn a pair of shoes that were two tight or just rubbed you in the wrong place, then chances are that you have experienced the pain of having a blister formed. To better understand how blisters form, what treatment we should apply for blisters, and how we can avoid having them form, we should learn more about what blisters are.
A blister on the foot is basically a small pocket that is fluid filled. This pocket typically forms on the upper layers of skin, because those layers are so thin. The majority of the time, blisters are filled with clear fluid; however, sometimes the blisters may be filled with blood and even pus if they have become infected due to bacteria entering the blister pocket.
Blisters on the feet are almost always a result of a shoe rubbing the foot constantly which results in what is termed a friction blister. These blisters occur after you have walked for very long periods of time or when you wear a pair of shoes that do not fit your feet properly. Blisters also form more easily if your feet are moist.
If you experience the displeasure of having a blister form on your foot, then proper treatment is an absolute must to alleviate pain and to prevent infection. In general the best treatment for blisters that are full of clear fluid is to just leave them alone. Your body will form new skin under the blister and then when the time is right your body will allow the blister to pop. If you try to lance the blister you may introduce bacteria in it that will lead to an infection. If the blister is painful, then you can use a band-aid over it to provide some cushioning which should relieve pain.
If the blister is filled with blood or pus, then the best treatment is to seek out the attention of a doctor. These blisters may need to be further evaluated and you may be given antibiotics to destroy any infection that you may have.
Preventing blisters on the feet is the best way to prevent any pain or infection that could occur. You can prevent blisters by keeping your feet dry and by making sure that you wear a proper pair of shoes that fit your feet well, without being too tight or too loose. If you do feel a place on your foot where your shoe is rubbing, then applying a band-aid to that spot may prevent a blister from forming until you can change them.
The Impact of Barefoot Running
-Running without shoes changes the motion of your running, as most running is done by landing on the heel of the feet.
-Running barefoot requires a different way of running; the landing is done on the front part of the feet.
The Advantages of Barefoot Running
-When running and landing on the front feet, the impact on the feet and ankle is reduced, this can reduce stress injuries.
-It strengthens muscles in the feet and ankles and the lower legs.
-Balance of the body is improved and there is a greater sensory input from the feet to the rest of the body.
The Drawbacks of Barefoot Running
-No protection while running, makes it likely that runners will land on sharp objects and scrapes, bruises and cuts on the feet will result.
-Blisters may form.
-Possibility of plantar fascia problems.
-Risk of getting Achilles tendonitis.
So what can runners do to make barefoot running safe? It’s best to make a slow transition from running shoes to barefoot running. Once the feet begin to adjust, try walking, then jogging and gradually increasing the distance. Minimalist running shoes may also be an option.
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