title: Effects of transcranial magnetic stimulation on results of the twitch interpolation technique.
abstract: To investigate whether transcranial magnetic stimulation (TMS) has an effect on isometric muscle force elicited by maximal voluntary contractions (MVC) and the ability to activate a muscle voluntarily (VA, as a percentage of full muscle activation), a twitch-interpolation technique was applied on the quadriceps femoris muscles of six volunteers before and within 1 min after TMS. VA improved by 5% (P = 0.019) and MVC by 17% (P = 0.002), whereas these parameters were unchanged in a control experiment. The results suggest that TMS has an effect on the central motor drive, at least within 1 min after stimulation.
authors.affiliation: Neuromuscular Research Group, Department of Orthopedics, Otto-von-Guericke-University, Leipziger Strasse 44, D-39120 Magdeburg, Germany. dietmar.urbach@medizin.uni-magdeburg.de
authors.forename: D
authors.initials: D
authors.lastname: Urbach
authors.forename: F
authors.initials: F
authors.lastname: Awiszus
mesh_terms: D000328:Adult; D004558:Electric Stimulation; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology; D007866:Leg / Q000294:innervation / Q000502:physiology; D015225:Magnetoencephalography; D008297:Male; D008875:Middle Aged; D009046:Motor Neurons / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology; D018482:Muscle, Skeletal / Q000294:innervation / Q000502:physiology*