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Abstract

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.

Keywords: patellofemoral pain; goniometry; biofeedback
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Copyright: Association for Applied Psychophysiology & Biofeedback
Figure 1
Figure 1

Components of limb position biofeedback: 1  =  amplifier for goniometer; 2  =  auditory biofeedback unit; 3  =  ear phone; 4  =  electronic goniometer.

Figure 2
Figure 2

Placement of goniometer.

Figure 3
Figure 3

A subject performing a squat without biofeedback.

Figure 4
Figure 4

A subject performing a squat with biofeedback.

Contributor Notes

Correspondence: Wong Yiu Ming, PhD, PT, CSCS, Research Associate, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, e-mail: rswongym@polyu.edu.hk.