Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
©Journal of Sports Science and Medicine (2020) 19, 224 - 230

Research article
Effects of Posterior X Taping on Movement Quality and Knee Pain Intensity during Forward-Step-Down in Patients with Patellofemoral Pain Syndrome
Eui-hwan Lim1, Mo-eun Kim1, Si-hyun Kim2, Kyue-nam Park1, 
Author Information
1 Department of Physical Therapy, College of Medical Science, Jeonju University, Jeonju, South Korea
2 Department of Physical Therapy, Sangji University, Wonju, South Korea

Kyue-nam Park
✉ PhD, Professor Department of Physical Therapy, College of Health Science, Jeonju University 1200 Hyoja-dong, Wansan-gu, Jeonju, Jeollabuk-do, (560-759), South Korea
Publish Date
Received: 24-09-2019
Accepted: 08-01-2020
Published (online): 24-02-2020
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Excessive tibiofemoral rotation in weight-bearing position may be associated with patellofemoral pain syndrome (PFPS). A previous literature suggested that “posterior X taping” method is effective for correcting the reduction of hip adduction and tibiofemoral rotation in weight bearing position. The purpose of this study was to determine the effects of posterior X taping on the angles of hip adduction, tibiofemoral rotation, grades of the forward-step-down (FSD) performance test, and intensity of knee pain when descending stair in patients with PFPS. We recruited patients with PFPS. The knee pain intensity during FSD was measured using visual analogue scale system (100 mm) under both no-tape and tape conditions. A three-dimensional motion analysis system was used to assess the kinematics of lower limb joints during FSD. In addition, scoring system of FSD performance test was used to assess the movement deviation of the trunk and lower limb and one-leg balance. Participants with PFPS showed reduced pain intensity (p = 0.001) and improved scores on FSD performance test (p = 0.002) with posterior X taping compared to the no-tape condition during FSD. No significant alterations changes were noted in three dimensional angles of the hip, knee and ankle joints, especially hip adduction and tibiofemoral rotation between conditions. Posterior X taping decreases knee pain and improves the scores on FSD performance test for patients with PFPS.

Key words: Forward step down, patellofemoral pain syndrome, posterior X taping, tibiofemoral rotation

           Key Points
  • Posterior X taping can reduce knee pain intensity during forward-step-down (FSD).
  • Posterior X taping is effective to improve scores on the FSD performance test.
  • The pain-inhibition effects by taping may not be due to correction of tibiofemoral kinematics.
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