Altered hip and trunk muscle function in individuals with patellofemoral pain.

  • SM C
  • KM C
  • KL B
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OBJECTIVE: The purpose of this study was to investigate the role of hip muscles in patellofemoral pain (PFP), specifically by investigating neuromotor control, strength and range of motion of the hip muscles. DESIGN: Cross-sectional. SETTING: University laboratory. PATIENTS: Ten participants diagnosed with PFP and 27 asymptomatic controls were recruited, using standard inclusion and exclusion criteria. MAIN OUTCOME MEASURES: Electromyographic activity of the vasti and anterior gluteus medius (GM) were recorded using surface electrodes and posterior GM using fine wire electrodes while the participant completed a stair-stepping task. Hip strength and trunk side flexion strength was assessed using a hand-held dynamometer and hip range of motion with an inclinometer. Pain and disability measures were recorded for the PFP participants. RESULTS: When individuals with PFP completed the stair-stepping task there was a delay in activation of both anterior and posterior GM (p

Author-supplied keywords

  • Abdomen -- Physiology
  • Adult
  • Case Control Studies
  • Cross Sectional Studies
  • Electromyography
  • Female
  • Hip -- Physiology
  • Human
  • Male
  • Muscle Strength -- Physiology
  • Muscle, Skeletal -- Physiopathology
  • Patellofemoral Pain Syndrome -- Physiopathology
  • Psychomotor Performance
  • Range of Motion -- Physiology
  • Thorax -- Physiology

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  • Cowan SM

  • Crossley KM

  • Bennell KL

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