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Functional and EMG responses to a physical therapy treatment in patellofemoral syndrome patients.

Abstract
There are several pathologies related to the patellofemoral joint, in which the patellofemoral syndrome is one of the most common and challenging to treat. The patellofemoral syndrome results from a malalignment of the knee extensor mechanism. The purpose of our study was to describe and compare EMG responses of the vastus medialis and vastus lateralis muscles while walking up and down stairs and other clinical and functional responses in PFS subjects before and after a physical therapy intervention. Eleven subjects were studied and divided in two groups: six subjects with clinically diagnosed patellofemoral syndrome and five healthy control subjects. Subjects were evaluated by a functional and biomechanical evaluation protocol: postural evaluation, pain and knee function evaluation, and electromyographic activity of vastus medialis and lateralis muscles while walking up and down a staircase. Results showed higher efficiency of the vastus medialis muscle in carrying out eccentric exercises and increased muscle activity in both the vastus medialis and vastus lateralis muscles while climbing stairs after physical therapy treatment. We were able to identify an improvement in postural alignment of lower limb muscles and knee functionality among patellofemoral syndrome group subjects after treatment.
AuthorsIsabel de C N Sacco, Gil Kiyoshi Konno, Guilherme Benetti Rojas, Antonio Carlos Arnone, Anice de Campos Pássaro, Amélia Pasqual Marques, Cristina Maria Nunes Cabral
JournalJournal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology (J Electromyogr Kinesiol) Vol. 16 Issue 2 Pg. 167-74 (Apr 2006) ISSN: 1050-6411 [Print] England
PMID16102978 (Publication Type: Journal Article)
Topics
  • Adolescent
  • Adult
  • Biomechanical Phenomena
  • Case-Control Studies
  • Electromyography
  • Female
  • Humans
  • Male
  • Muscle, Skeletal (physiopathology)
  • Patellofemoral Pain Syndrome (physiopathology, rehabilitation)
  • Physical Therapy Modalities
  • Walking (physiology)

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