Individuals with excessive internal hip rotation and knee valgus during functional movement often develop abnormal lateral patellar tracking, sometimes resulting in anterior knee pain. A configuration of currently available biofeedback instruments, including an electronic goniometer, can provide feedback on limb position, which is useful in correcting the knee valgus. The article reports on the use of this biofeedback system with three individuals with measurable knee valgus, producing a remediation of the limb angle in each case.

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