Article

OBJECTIVE: To investigate the effects of patellar taping on the electromyographic
onset of vastus medialis obliquus and vastus lateralis, and their magnitudes of
reflex contraction before and after quadriceps muscle fatigue in subjects with
patellofemoral pain. METHODS: Sixteen adults (5 males) diagnosed with
patellofemoral pain were studied. The timing of surface electromyography onset
and magnitude of vastus medialis obliquus and vastus lateralis contractions were
measured during a postero-anterior knee perturbation test. The tests were
conducted in random order under three conditions of real taping, placebo taping
and no taping. Afterwards, the subjects performed knee extension exercises until
fatigue and the above tests were repeated, so as to examine the effects of
patellar taping in a muscle fatigued condition. RESULTS: There was no significant
difference in electromyographic onset timing of vastus medialis obliquus and
vastus lateralis or in the amplitude of vastus lateralis contraction among the
different testing conditions. For vastus medialis obliquus amplitude, however, it
was significantly higher in the no taping than the real taping condition
regardless of the state of fatigue (P = 0.013). CONCLUSIONS: The present study
suggests that patellar taping might not enhance the temporal activation of vastus
medialis obliquus in subjects with patellofemoral pain before and after muscle
fatigue. Furthermore, vastus medialis obliquus contraction might be inhibited by
patellar taping.

Langue : ANGLAIS