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Effect of patellar taping on vasti onset timing, knee kinematics, and kinetics in asymptomatic individuals with a delayed onset of vastus medialis oblique
Author(s) -
Bennell Kim,
Duncan Margaret,
Cowan Sallie
Publication year - 2006
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.20226
Subject(s) - vastus medialis , ground reaction force , asymptomatic , physical medicine and rehabilitation , medicine , knee joint , kinematics , repeated measures design , knee flexion , physical therapy , electromyography , surgery , mathematics , statistics , physics , classical mechanics
This randomized within‐subject study investigated the effects of patellar tape on the onset of electromyographic (EMG) activity of vastus medialis obliquus (VMO) relative to vastus lateralis (VL), knee kinematics, and kinetics in 12 currently asymptomatic individuals with a VMO timing deficit and a history of patellofemoral pain. Participants were required to complete stair stepping and normal‐pace and fast‐pace walking tasks under three experimental conditions; no tape, control tape and therapeutic tape. EMG onsets of VMO and VL were measured by surface electrodes, stance phase knee flexion by the PEAK movement analysis system and vertical ground reaction force by a force plate. A two‐way repeated measures analysis of variance showed that neither therapeutic tape nor control tape had any effect on the EMG VMO‐VL onset timing difference. Therapeutic tape, but not control tape, led to significant increases in stance phase knee flexion. The first peak vertical ground reaction force was lowered by both control and therapeutic tape but only during fast walking. The results suggest that tape induced effects on neuromotor control of the vasti seen in other studies are related to reductions in pain rather than the presence of a baseline timing deficit. However, this cannot explain the improvements in stance phase knee flexion observed with tape. © 2006 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res