title: Cold water immersion of the ankle decreases neuromuscular response of lower limb after inversion movement.
abstract: BACKGROUND
  Cryotherapy has been associated with a significant decrease in nerve conduction velocity and muscle contraction with possible effects on exercise and physical training.
  
  
  OBJECTIVE
  To quantify the electromyographic response of the lateral gastrocnemius, tibialis anterior, fibularis longus, rectus femoris and gluteus medius to ankle inversion following cold water immersion.
  
  
  METHODS
  The peak values of the root mean square (RMS) were obtained from 35 healthy and active university subjects after the use of a tilt platform to force the ankle into 30° of inversion before, immediately after, and 10, 20, and 30 minutes after water immersion at 4±2°C, for 20 minutes. The Shapiro-Wilk test, repeated measures analysis, Bonferroni's post-hoc, and linear regression analysis provided the results.
  
  
  RESULTS
  Peak RMS was significantly lower at all times after cold water immersion, with residual effect of up to 30 minutes, when compared to pre-immersion for all muscles, except for immediate post-immersion for the gluteus medius.
  
  
  CONCLUSIONS
  After cold water immersion of the ankle, special care should be taken in activities that require greater neuromuscular control.
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil.
authors.forename: Christiane S G
authors.initials: CS
authors.lastname: Macedo
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil.
authors.forename: Carolina S
authors.initials: CS
authors.lastname: Alonso
authors.affiliation: Department of Rehabilitation, Hospital das Clinicas, USP, Ribeirao Preto, SP, Brazil.
authors.forename: Rogério F
authors.initials: RF
authors.lastname: Liporaci
authors.affiliation: Department of Rehabilitation, Hospital das Clinicas, USP, Ribeirao Preto, SP, Brazil.
authors.forename: Fernando
authors.initials: F
authors.lastname: Vieira
authors.affiliation: Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil.
authors.forename: Rinaldo R J
authors.initials: RR
authors.lastname: Guirro
mesh_terms: D000842:Ankle; D003080:Cold Temperature; D004576:Electromyography; D006801:Humans; D035002:Lower Extremity / Q000502:physiology*; D008297:Male; D009068:Movement; D018482:Muscle, Skeletal / Q000294:innervation / Q000502:physiology*; D014867:Water; D055815:Young Adult
chemical_list: D014867:Water