Journal of Biomechanical Engineering

| 2016

The Feasibility of Using Augmented Auditory Feedback From a Pressure Detecting Insole to Reduce the Knee
Adduction Moment: A Proof of Concept Study

Christopher Ferrigno, Ina S. Stoller, Najia Shakoor, Laura E. Thorp, Markus A. Wimmer

Rush University Medical Center, Chicago


KAM, Feedback, Sensor Insole


The objective of this work was to conduct a proof of concept study utilizing auditory feedback from a pressure-detecting shoe insole to shift plantar pressure medially in order to reduce the knee adduction moment (KAM). When compared with normal walking, 32 healthy subjects significantly reduced their peak KAM using feedback (p < 0.001). When compared with medial thrust gait, an established gait modification, walking with pressure-based feedback was equally effective at reducing the peak KAM, yet it successfully mitigated other potentially detrimental gait measures such as the peak knee flexion moment (KFM), knee internal rotation moment (KIrM), and a reduction in speed.

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