Patellar taping does not change the amplitude of electromyographic activity of the vasti in a stair stepping task

Cowan, S. M., Hodges, P. W., Crossley, K. M. and Bennell, K. L. (2006) Patellar taping does not change the amplitude of electromyographic activity of the vasti in a stair stepping task. British Journal of Sports Medicine, 40 1: 30-34. doi:10.1136/bjsm.2005.018499


Author Cowan, S. M.
Hodges, P. W.
Crossley, K. M.
Bennell, K. L.
Title Patellar taping does not change the amplitude of electromyographic activity of the vasti in a stair stepping task
Journal name British Journal of Sports Medicine   Check publisher's open access policy
ISSN 0306-3674
1473-0480
Publication date 2006
Sub-type Article (original research)
DOI 10.1136/bjsm.2005.018499
Volume 40
Issue 1
Start page 30
End page 34
Total pages 5
Editor P. McCrory
Place of publication London, United Kingdom
Publisher BMJ
Collection year 2006
Language eng
Subject 321024 Rehabilitation and Therapy - Occupational and Physical
730303 Occupational, speech and physiotherapy
Formatted abstract
Objectives:
To investigate the effect of patellar taping on the amplitude of electromyographic activity (EMG) of vastiactivation in subjects with and without patellofemoral pain (PFP).

Methods:

Ten participants with PFP and 12 asymptomatic controls were recruited to the study. The study was designed as a randomised crossover trial. Participants completed a stair stepping task. Three experimental conditions were assessed: no tape, therapeutic medially directed tape, and placebo vertically directed tape. The main outcome measure was the EMG amplitude of the vastus medialis obliquus and vastus lateralis during the concentric phase of stair stepping.

Results:
The application of medially directed therapeutic tape significantly decreased pain in subjects with PFP. However, application of tape over the patella (therapeutic or placebo) did not alter the amplitude of vasti EMG when either the PFP or control participants completed the concentric stair stepping task.

Conclusion:

The results of this study indicate that the positive clinical effects of medially directed therapeutic tape are not due to changes in EMG amplitude of the vasti muscle. Thus other effects such as changes in timing of contraction of the vasti are more likely candidates for the mechanism of efficacy.
Keyword Sport Sciences
Patellofemoral Pain Syndrome
Lateralis Muscle-activity
Knee Kinetics
Normalization
Position
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Wed, 15 Aug 2007, 10:49:48 EST