Females with patellofemoral pain syndrome have weak hip muscles: a systematic review

Aust J Physiother. 2009;55(1):9-15. doi: 10.1016/s0004-9514(09)70055-8.

Abstract

Question: Do females with patellofemoral pain syndrome have decreased hip muscle strength compared with the unaffected side and with healthy controls?

Design: A systematic review of observational studies published up to January 2008.

Participants: Females with patellofemoral pain syndrome and healthy controls.

Outcome measures: Strength for at least one hip muscle group had to be included in the study. Hip muscle strength was recorded as force or torque.

Results: Five cross-sectional studies with a mean Newcastle-Ottawa Assessment Scale score of 6 out of 9 met the inclusion criteria. Strong evidence was found for a deficit in hip external rotation, abduction and extension strength, moderate evidence for a deficit in hip flexion and internal rotation strength, and no evidence for a deficit in hip adduction strength compared with healthy controls. Moderate evidence was found for a decrease in hip external rotation and abduction strength but no evidence for a decrease in hip extension, flexion, adduction and internal rotation strength compared with the unaffected side.

Conclusion: Females with patellofemoral pain syndrome demonstrate a decrease in abduction, external rotation and extension strength of the affected side compared with healthy controls.

Publication types

  • Review
  • Systematic Review

MeSH terms

  • Adolescent
  • Adult
  • Databases, Bibliographic
  • Female
  • Hip / physiopathology*
  • Humans
  • Muscle Strength*
  • Patellofemoral Pain Syndrome / complications
  • Patellofemoral Pain Syndrome / physiopathology*
  • Patellofemoral Pain Syndrome / rehabilitation
  • PubMed
  • Sex Factors
  • Young Adult