Cold water immersion of the ankle decreases neuromuscular response of lower limb after inversion movement.

Autor:	Macedo CS; Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil., Alonso CS; Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil., Liporaci RF; Department of Rehabilitation, Hospital das Clinicas, USP, Ribeirao Preto, SP, Brazil., Vieira F; Department of Rehabilitation, Hospital das Clinicas, USP, Ribeirao Preto, SP, Brazil., Guirro RR; Department of Biomechanics, Medicine and Rehabilitation, Ribeirao Preto Medical School, Universidade de Sao Paulo, Ribeirao Preto, SP, Brazil.
Jazyk:	angličtina
Zdroj:	Brazilian journal of physical therapy [Braz J Phys Ther] 2014 Jan-Feb; Vol. 18 (1), pp. 93-7. Date of Electronic Publication: 2014 Jan 08.
DOI:	10.1590/s1413-35552012005000132
Abstrakt:	Background: Cryotherapy has been associated with a significant decrease in nerve conduction velocity and muscle contraction with possible effects on exercise and physical training. Objectives: 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. Method: 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.
Databáze:	MEDLINE
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