Recovery time of motor evoked potentials following lengthening and shortening muscle action in the tibialis anterior

Tallent, Jamie, Goodall, Stuart, Hortobágyi, Tibor, St Clair Gibson, Alan, French, Duncan and Howatson, Glyn (2012) Recovery time of motor evoked potentials following lengthening and shortening muscle action in the tibialis anterior. Journal of Clinical Neuroscience, 19 (9). pp. 1328-1329. ISSN 0967-5868

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Official URL: http://dx.doi.org/10.1016/j.jocn.2012.01.022

Abstract

Motor evoked potentials (MEP) at rest remain facilitated following an isometric muscle contraction.
Because the pre-synaptic and post-synaptic control of shortening (SHO) and lengthening (LEN) contractions differs, the possibility exists that the recovery of the MEP is also task specific. The time course of MEP recovery was assessed in the tibialis anterior following SHO and LEN (0.26 rad/s) at 25% and 80% of maximal voluntary contraction. Following LEN and SHO contractions, the MEP recovered to baseline levels within 10 s. Despite task-specific differences between SHO and LEN contractions, the MEP facilitation from the augmented neurotransmitter release appears to be short lasting and not influenced by contraction type.

Item Type: Article
Uncontrolled Keywords: Concentric, eccentric, facilitate, recovery, task specificity
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Linda Barlow
Date Deposited: 14 Feb 2013 16:38
Last Modified: 10 Aug 2015 11:34
URI: http://nrl.northumbria.ac.uk/id/eprint/11145

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