title: The effects of eversion fatigue on frontal plane joint position sense in the ankle.
abstract: BACKGROUND
  There is limited information on fatigue of the evertors on frontal plane joint position sense (JPS).
  
  
  OBJECTIVE
  To examine the effects of isokinetic concentric-eccentric fatigue of the evertors on frontal plane JPS of the ankle.
  
  
  METHODS
  A2 x 4 factorial design.
  
  
  METHODS
  Research Laboratory.
  
  
  METHODS
  40 male and female healthy subjects.
  
  
  METHODS
  JPS was tested at 10 degrees and 20 degrees of inversion and 5 degrees and 10 degrees of eversion in a nonfatigued/fatigued condition. After fatigue of evertors was determined on an isokinetic device, post fatigue testing of JPS occurred.
  
  
  METHODS
  JPS absolute error (AE) for inversion and eversion.
  
  
  RESULTS
  Main effect for condition and angle were significant with pre/post fatigue. There were overestimation of angles postfatigue with AE greater at 20 degrees of inversion (P = .003), followed by 10 degrees of inversion (P < .001), 10 degrees of eversion (P = .005), and 5 degrees of eversion (P = .005).
  
  
  CONCLUSIONS
  When the ankle evertors were fatigued, the AE for JPS was significantly higher at all test angles.
authors: School of Physical Education, West Virginia University, Morgantown, WV, USA. msandrey@mail.wvu.edu
authors: Michelle A
authors: MA
authors: Sandrey
authors: Timothy E
authors: TE
authors: Kent
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D000843:Ankle Joint / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D018763:Muscle Fatigue / Q000502:physiology*; D010865:Pilot Projects; D011187:Posture / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D013997:Time Factors; D055815:Young Adult