Posts Tagged ‘knee’

Are Running Shoes Causing Knee, Hip and Ankle Problems

Wednesday, January 27th, 2010

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A new study published in the December issue of PM&R: The Journal of Injury, Function and Rehabilitation concluded that running shoes exert more stress on knee, hip and ankle joints than running barefoot or walking in high-heeled shoes.
Sixty-eight healthy young adults who run at least 15 miles a week in typical running shoes (37 women and 28 men) and who had no musculoskeletal injuries were included in the study. Each was given a pair of typical running shoes and observed running barefoot and with shoes on a treadmill. Data was collected at each runner’s comfortable running pace after a warm-up period.
The researchers observed increased joint torques at the hip, knee and ankle with running shoes. An average 54% increase in the hip internal rotation torque, a 36% increase in knee flexion torque, and a 38% increase in knee varus torque were measured when running in running shoes compared with barefoot. This is even higher than the earlier reports of knee joint torque reported for high heeled shoes. The researcher concluded that the goal of new footwear designs should be to reduce joint torque in footwear to that of barefoot running while providing meaningful footwear function.