Início de ativação do quadríceps e variação do torque durante a subida de escada em indivíduos com dor patelofemoral

Authors

  • Heloyse Uliam Kuriki FCT/UNESP
  • Fábio Mícolis de Azevedo FCT/UNESP
  • Rúben de Faria Negrão Filho
  • Neri Alves

DOI:

https://doi.org/10.5585/conssaude.v11n4.3810

Keywords:

Electromyography, Patellofemoral pain syndrome, Torque.

Abstract

Introduction: Studies have used surface electromyography (EMG) to understand motor recruitment in individuals with patellofemoral pain syndrome (PFPS); however, there is no consensus in the literature. Objective: To understand if, in addition to neuromuscular disorders, there are changes in rotational patterns in individuals with PFPS. Methods: Twenty-two control pain-free subjects and eleven subjects with PFPS were assessed during stair ascent with respect to the onset of muscle activation and percentage of torque variation (PTV). Result: The PFPS group showed previous activation of vastus lateralis (VL) (21.1 ± 58.1ms), while simultaneous activation was observed in the control group (2.8 ± 30.7ms, p=0.01). The groups also showed differences in relation to the PTV (p=0.02): the control group showed greater variation in torque (26.7 ± 35.3%) compared to the PFPS group (17.5 ± 35.9%). Conclusion: People with PFPS have prior activation of VL and lower tendency towards body rotation, which may suggest patellar lateralization.

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Published

2013-01-04

How to Cite

1.
Kuriki HU, Azevedo FM de, Negrão Filho R de F, Alves N. Início de ativação do quadríceps e variação do torque durante a subida de escada em indivíduos com dor patelofemoral. Cons. Saúde [Internet]. 2013 Jan. 4 [cited 2024 Jul. 1];11(4):642-50. Available from: https://periodicos.uninove.br/saude/article/view/3810

Issue

Section

Applied Sciences