The effects of eversion fatigue on frontal plane joint position sense in the ankle.
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.
Sandrey
Michelle A
MA
School of Physical Education, West Virginia University, Morgantown, WV, USA. msandrey@mail.wvu.edu
Kent
Timothy E
TE
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