Can forearm muscle activity be selectively recorded using conventional surface EMG-electrodes in transcranial magnetic stimulation? A feasibility study

2014 ◽  
Vol 24 (3) ◽  
pp. 325-331 ◽  
Author(s):  
C.D. Bakker ◽  
A.A. van Kuijk ◽  
A.C.H. Geurts ◽  
D.F. Stegeman ◽  
J.W. Pasman
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Feasibility Study ◽  
Muscle Activity ◽  
Magnetic Stimulation ◽  
Surface Emg ◽  
Forearm Muscle ◽  
Emg Electrodes

scholarly journals Reliability of diaphragmatic motor-evoked potentials induced by transcranial magnetic stimulation

2020 ◽  
Vol 129 (6) ◽  
pp. 1393-1404
Author(s):  
Joseph F. Welch ◽  
Patrick J. Argento ◽  
Gordon S. Mitchell ◽  
Emily J. Fox
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Evoked Potentials ◽  
Magnetic Stimulation ◽  
Motor Evoked Potentials ◽  
Surface Emg ◽  
Noninvasive Technique ◽  
Large Variability ◽  
Adult Men ◽  
Latency Duration ◽  
Excellent Reproducibility

Transcranial magnetic stimulation (TMS) is a noninvasive technique to assess neural impulse conduction along the cortico-diaphragmatic pathway. The reliability of diaphragm motor-evoked potentials (MEP) induced by TMS is unknown. Notwithstanding large variability in MEP amplitude, we found good-to-excellent reproducibility of all MEP characteristics (latency, duration, amplitude, and area) both within- and between-day in healthy adult men and women. Our findings support the use of TMS and surface EMG to assess diaphragm activation in humans.

scholarly journals A feasibility study for somatomotor cortical mapping in Tourette syndrome using neuronavigated transcranial magnetic stimulation

Cortex ◽  
2020 ◽  
Vol 129 ◽  
pp. 175-187
Author(s):  
Hilmar P. Sigurdsson ◽  
Stephen R. Jackson ◽  
Soyoung Kim ◽  
Katherine Dyke ◽  
Georgina M. Jackson
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Tourette Syndrome ◽  
Feasibility Study ◽  
Magnetic Stimulation ◽  
Cortical Mapping

EMG Analysis of Patients with Unilateral Neck Pain

1999 ◽  
Vol 8 (1) ◽  
pp. 32-42 ◽  
Author(s):  
Robert L. Whalen ◽  
Steven P. Konstant ◽  
Teddy W. Worrell ◽  
Sam Kegerreis
Keyword(s):  
Neck Pain ◽  
Muscle Activity ◽  
Physical Therapist ◽  
Surface Emg ◽  
High Variability ◽  
Emg Activity ◽  
Upper Trapezius ◽  
Visual Analog Scales ◽  
Vas Scores ◽  
Emg Electrodes

The purpose of this study was to determine whether differences exist in EMG activity between involved and uninvolved upper trapezius muscles in participants with unilateral neck pain. Thirteen volunteers, seen by a physical therapist, gave informed consent. Surface EMG electrodes were placed on involved and uninvolved upper trapezius muscles. Root mean squared EMG activity was measured. Visual analog scales (VASs) for pain were used for each side. Reliability data indicated high ICC (2,1) but also large SEMs and CVs. EMG activity increased from resting to shrugging to abducting positions. Participants perceived greater pain on the involved side than the uninvolved side. EMG readings for individuals were consistent, however, between participants. EMG had high variability. Although participants' VAS scores were consistent with their reports of unilateral neck pain, surface EMG readings did not support the existence of increased muscle activity on the involved side.

scholarly journals Motor facilitation during action observation: a magnetic stimulation study

1995 ◽  
Vol 73 (6) ◽  
pp. 2608-2611 ◽  
Author(s):  
L. Fadiga ◽  
L. Fogassi ◽  
G. Pavesi ◽  
G. Rizzolatti
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Motor Cortex ◽  
Muscle Activity ◽  
Magnetic Stimulation ◽  
Motor Evoked Potentials ◽  
Action Observation ◽  
Normal Subjects ◽  
Hand Muscles ◽  
3D Objects ◽  
The One

1. We stimulated the motor cortex of normal subjects (transcranial magnetic stimulation) while they 1) observed an experimenter grasping 3D-objects, 2) looked at the same 3D-objects, 3) observed an experimenter tracing geometrical figures in the air with his arm, and 4) detected the dimming of a light. Motor evoked potentials (MEPs) were recorded from hand muscles. 2. We found that MEPs significantly increased during the conditions in which subjects observed movements. The MEP pattern reflected the pattern of muscle activity recorded when the subjects executed the observed actions. 3. We conclude that in humans there is a system matching action observation and execution. This system resembles the one recently described in the monkey.

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