Thursday, August 19, 2010

Best Shoes for Knee Pain: Study

Best Shoes for Knee Pain: Study
Arthritis of the knee is common and a major source of disability and impaired quality of life, the researchers say. Shakoor's team evaluated 31 men and women who had knee arthritis, evaluating their gait as they wore:
•    Clogs
•    An athletic shoe that promises to minimize inward rolling of the foot
•    Flat walking shoes
•    Flip-flops
The study was supported by the National Institutes of Health.
Shakoor measured what's known as a knee adduction moment, "which measures the extent of the force upon your knee as you walk."
"Flat walking shoes, barefoot, and flip-flops were essentially the same in load on the knee," she says. "But clogs and stability shoes result in a 15% higher load."
"These are just initial studies, and it's too early to recommend [changes]," she says. "But several studies are suggesting that perhaps flat, flexible footwear may help decrease loads on the knee compared to footwear that is less flexible and has higher heels. Stability shoes have higher heels [than other athletic shoes]."
"We think it's the flatness and the flexibility that may provide the benefit."
And, she cautioned: "We are definitely not advocating flip-flops. A flat walking shoe would be better than a flip-flop for other reasons -- stability and the risk of falling."
Shakoor will continue her research. With Rush University and a podiatrist, she hopes to develop a walking shoe for people with knee arthritis. She says Rush will hold the patent.

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