Cryotherapy does not affect peroneal reaction following sudden inversion.
BACKGROUND
If ankle joint cryotherapy impairs the ability of the ankle musculature to counteract potentially injurious forces, the ankle is left vulnerable to injury.


OBJECTIVE
To compare peroneal reaction to sudden inversion following ankle joint cryotherapy.


METHODS
Repeated measures design with independent variables, treatment (cryotherapy and control), and time (baseline, immediately post treatment, 15 minutes post treatment, and 30 minutes post treatment).


METHODS
University research laboratory.


METHODS
Twenty-seven healthy volunteers.


METHODS
An ice bag was secured to the lateral ankle joint for 20 minutes.


METHODS
The onset and average root mean square amplitude of EMG activity in the peroneal muscles was calculated following the release of a trap door mechanism causing inversion.


RESULTS
There was no statistically significant change from baseline for peroneal reaction time or average peroneal muscle activity at any post treatment time.


CONCLUSIONS
Cryotherapy does not affect peroneal muscle reaction following sudden inversion perturbation.
Berg
Christine L
CL
Newport News, VA Public Schools, USA. bergc103@hotmail.com
Hart
Joseph M
JM
Palmieri-Smith
Riann
R
Cross
Kevin M
KM
Ingersoll
Christopher D
CD
D000328:Adult; D016512:Ankle Injuries / Q000628:therapy*; D017679:Cryotherapy / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D004576:Electromyography; D005260:Female; D006801:Humans; D007053:Ice / Q000009:adverse effects; D007101:Immersion; D007593:Joint Instability / Q000209:etiology / Q000503:physiopathology; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology / Q000503:physiopathology; D010543:Peroneal Nerve / Q000502:physiology*; D011930:Reaction Time; D011999:Recruitment, Neurophysiological; D016896:Treatment Outcome
D007053:Ice