Age-related changes in spatio-temporal and sagittal plane walking mechanics are well documented [1, 2]. These changes along with age-related changes in muscle strength, muscle activation patterns and ligament stiffness [3] may also lead to changes in both rotational and translation motions at the knee. It has been suggested that alterations in the normal kinematics of the knee related to aging may be a contributing factor to the increased incidence of knee osteoarthritis (OA) with aging [4].

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