Sustained Isometric Wrist Flexion and Extension Maximal Voluntary Contractions on Corticospinal Excitability to Forearm Muscles during Low-Intensity Hand-Gripping

Brain Sciences
Davis A FormanMichael W R Holmes

Abstract

The wrist extensors demonstrate an earlier fatigue onset than the wrist flexors. However, it is currently unclear whether fatigue induces unique changes in muscle activity or corticospinal excitability between these muscle groups. The purpose of this study was to examine how sustained isometric wrist extension/flexion maximal voluntary contractions (MVCs) influence muscle activity and corticospinal excitability of the forearm. Corticospinal excitability to three wrist flexors and three wrist extensors were measured using motor evoked potentials (MEPs) elicited via transcranial magnetic stimulation. Responses were elicited while participants exerted 10% of their maximal handgrip force, before and after a sustained wrist flexion or extension MVC (performed on separate sessions). Post-fatigue measures were collected up to 10-min post-fatigue. Immediately post-fatigue, extensor muscle activity was significantly greater following the wrist flexion fatigue session, although corticospinal excitability (normalized to muscle activity) was greater on the wrist extension day. Responses were largely unchanged in the wrist flexors. However, for the flexor carpi ulnaris, normalized MEP amplitudes were significantly larger following wrist ext...Continue Reading

References

Sep 1, 1992·The Journal of Hand Surgery·M D JacobsonR L Lieber
Jan 1, 1992·Experimental Brain Research·R M BrownstoneS J Shefchyk
Oct 1, 1990·The Journal of Physiology·S J Garland, A J McComas
Mar 1, 1990·The Journal of Hand Surgery·R L LieberM J Botte
Feb 1, 1989·Pflügers Archiv : European journal of physiology·A de HaanA J Sargeant
Aug 1, 1986·Journal of Applied Physiology·B Bigland-RitchieJ J Woods
May 1, 1972·Electroencephalography and Clinical Neurophysiology·R S Person, L P Kudina
Jan 1, 1982·Experimental Brain Research·D Kernell, A W Monster
Dec 1, 1983·Journal of Neurophysiology·F BellemareB Bigland-Ritchie
Jul 1, 1983·The Journal of Physiology·B Bigland-RitchieJ J Woods
Nov 1, 1981·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·B Bigland-RitchieC S Roussos
May 1, 1995·Journal of Neurophysiology·A SawczukM D Binder
Oct 1, 1994·The Journal of Physiology·D BurkeE Pierrot-Deseilligny
Dec 1, 1995·Electroencephalography and Clinical Neurophysiology·Y UgawaI Kanazawa
Nov 1, 1995·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·R M Enoka
Mar 1, 1996·Experimental Brain Research·W N LöscherA Thorstensson
Jan 15, 1996·The Journal of Physiology·J L TaylorS C Gandevia
Nov 1, 1996·Muscle & Nerve·J LiepertJ P Malin
Feb 15, 1996·The Journal of Physiology·W N LöscherA Thorstensson
Jul 1, 1997·Journal of Biomechanics·R V GonzalezS L Delp
Nov 18, 2000·Medicine and Science in Sports and Exercise·F TergauC D Reimers
Dec 5, 2000·European Journal of Applied Physiology·P BawaM L Walsh
Oct 3, 2001·Physiological Reviews·S C Gandevia
Aug 8, 2002·Medicine and Science in Sports and Exercise·Darren J Dutto, Gerald A Smith
Sep 5, 2002·Muscle & Nerve·Emmanuel Pierrot-Deseilligny
May 31, 2003·Ergonomics·Jeremy P M Mogk, Peter J Keir
Jun 28, 1956·The Journal of Physiology·R G EDWARDS, O C LIPPOLD
Dec 21, 2005·Pflügers Archiv : European journal of physiology·Jodie RatteyFrank E Marino
Feb 24, 2006·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Atsuo MaruyamaJohn C Rothwell
Mar 25, 2006·The Journal of Physiology·Karen SøgaardJanet L Taylor
May 5, 2006·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Peter G MartinJanet L Taylor
Mar 8, 2007·Experimental Brain Research·L P J SelenJ H van Dieën
Apr 28, 2007·Journal of Applied Physiology·Janette L SmithJanet L Taylor
Nov 23, 2007·Journal of Applied Physiology·Janet L Taylor, Simon C Gandevia
Jan 22, 2008·Experimental Brain Research·Olivier MissenardStephane Perrey

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