An estimated 120,000 job-related foot injuries occur every year. A poll conducted by the American Podiatric Medical Association (APMA) in 2000 found that 55% of Americans missed a day of work because of foot problems. A number of these problems, including arthritis of the foot and ankle, toe deformities, pinched nerves between the toes, plantar faciitis, adult acquired flat foot, and tarsal tunnel syndrome have been attributed to repetitive use at work.

This may be the tip of the iceberg, as prolonged standing and walking on hard surfaces have also been associated with knee and back pain. As the American workforce continues to advance in age, the frequency of these problems is likely to increase. Many workers in manufacturing and service industries spend up to 8 hours per day (sometimes more) on tile or concrete, and could easily have 10 to 30 years of exposure.

Several studies over the last five years have shown promising results with insoles. An insole is a cushioned insert that is placed inside the shoe, and is designed to reduce shock and provide support. According to a study of 122 police officers published in the American Journal of Podiatric Medicine, shoe insoles have a 68% success rate of relieving foot discomfort. The authors stated “Over-the-counter insoles are a cost-effective way to relieve foot pain and make shoes more comfortable, but if foot pain persists, customized insoles should be considered.” In another study, 30 postal workers at a bulk mail center wore insoles for three months and reported a reduction of 67% in perceived pain at the feet, knees, and/or back (BioMechanics, November 1998). The author commented “The use of properly designed ¾-length shoe inserts should be one of the first considerations for employees required to stand for extended periods in the workplace.”

While over-the-counter insoles have been available for many years, several companies are now trying to bring the benefits of custom orthotics to the general public by offering insoles that not only provide improved cushioning, but also increased support. An effort to integrate motion control, alignment, and stability of the foot with shock absorption appears to be the new focus.

Insoles can be a viable alternative to anti-fatigue matting, especially in areas where mats are not feasible or employees are on the move. Insoles are available from a variety of sources, including www.superfeet.com, www.prothotics.com, www.spenco.com, www.mega-comfort.com, and www.rxsorbo.com.

Insoles, like the ones mentioned above, typically range from $10-30 per pair and offer a guarantee of up to one year. There are a variety of types and sizes, so careful consideration needs to be given during selection. Given human variability, one type may not work for everyone. A good approach is to try different insoles on a pilot basis before implementing a widespread program.