title: Cryotherapy does not affect peroneal reaction following sudden inversion.
abstract: 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.
authors.affiliation: Newport News, VA Public Schools, USA. bergc103@hotmail.com
authors.forename: Christine L
authors.initials: CL
authors.lastname: Berg
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Hart
authors.forename: Riann
authors.initials: R
authors.lastname: Palmieri-Smith
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Cross
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Ingersoll
mesh_terms: 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
chemical_list: D007053:Ice