The Effect of Sudden Inversion Stress on EMG Activity of the Peroneal and Tibialis Anterior Muscles in the Chronically Unstable Ankle

Tibialis anterior muscle Plantar flexion Peroneus longus
DOI: 10.2519/jospt.1997.26.2.73 Publication Date: 2013-08-30T05:27:23Z
ABSTRACT
Residual symptoms resulting from recurrent episodes of inversion-type ankle sprains may be attributed to a decreased neuromuscular response the peroneal or tibialis anterior muscles, thereby increasing probability for reinjury. The purpose this study was examine electromyographic (EMG) time and muscles in sudden plantar flexion/inversion stress chronically functional unstable normal ankle. Subjects consisted 13 athletically active individuals (five males eight females, mean age = 19.2 +/- 1.51 years) with previous history unilateral sprain. A specially designed platform that allows each foot drop into standing neutral position used. Reaction milliseconds measured via surface EMG. paired t test performed Bonferroni-Dunn correction factor determine differences between as well contralateral results indicated no significant stable ankles muscles. also existed either ankles. findings present suggest self-reported instability not result diminished reflex stress.
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