PNF and Movement 2023; 21(2): 231-241
Changes of Vastus Medialis Oblique and Vastus Lateralis Muscle Activities During Walking by Different Taping Method
Min-Hyung Rhee, PT, PhD1⋅Jong-Soon Kim, PT, PhD2†
1Department of Rehabilitation Medicine, Pusan National University Hospital
2Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan
Correspondence to: Jong-Soon Kim (
Received: June 28, 2023; Revised: July 21, 2023; Accepted: July 25, 2023; Published online: August 31, 2023.
© Korea Proprioceptive Neuromuscular Facilitation Association. All rights reserved.

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Purpose: Weakness of the vastus medialis oblique muscle (VMO), or the imbalance between VMO and vastus lateralis muscle (VL) activity, is one of the most important factors in knee joint problems. Rigid taping techniques, such as patellar inhibition taping and VL inhibition taping, are frequently used in clinical practice to treat knee joint problems. The purpose of this study was to compare the acute effect of three different types of taping (patellar inhibition taping (PIT), distal VL inhibition taping (DVLIT), and proximal VL inhibition taping (PVLIT)) on electromyography (EMG) activity of VMO, VL, and VMO:VL ratio during walking.
Methods: Thirty-eight normal healthy subjects (38 males; mean age = 31.00 years) voluntarily participated in this study. EMG was applied to investigate muscle activation during walking. Repeated measures of ANOVA and one-way ANOVA compared the three different conditions (PIT, DVLIT, and PVLIT) for each variable.
Results: VMO and VL activation were significantly increased after PTIT application, and VMO and VL activation were significantly decreased after DVLIT and PVLIT application. The VMO:VL ratio increased after the three types of taping application, but there were no significant differences among the three types of taping.
Conclusion: Based on the results of this study, PTIT is more effective than DVLIT and PVLIT in increasing the muscle activation of the VMO and VL during walking. Also, DVLIT is more effective for increasing the VMO:VL ratio and has beneficial effects on the imbalance between VMO and VL activity.
Keywords: Patellar inhibition taping, Vastus lateralis inhibition taping, VMO:VL ratio

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