Muscle fatigue increases beta-band coherence between the firing times of simultaneously active motor units in the first dorsal interosseous muscle
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چکیده
منابع مشابه
Muscle fatigue increases beta-band coherence between the firing times of simultaneously active motor units in the first dorsal interosseous muscle.
Synchronization between the firing times of simultaneously active motor units (MUs) is generally assumed to increase during fatiguing contractions. To date, however, estimates of MU synchronization have relied on indirect measures, derived from surface electromyographic (EMG) interference signals. This study used intramuscular coherence to investigate the correlation between MU discharges in th...
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Changes in motor unit behavior following isometric fatigue of the first dorsal interosseous 1 muscle 2 by 3 Lara McManus , Xiaogang Hu , William Z. Rymer 2, , Madeleine M. Lowery , Nina L. Suresh 2 4 1) University College Dublin, Belfield, Dublin 4, Ireland 5 2) Rehabilitation Institute of Chicago, Chicago, IL 60611, USA 6 3) Northwestern University, Evanston, IL 60208, USA 7 Abbreviated Title:...
متن کاملChanges in motor unit behavior following isometric fatigue of the first dorsal interosseous muscle.
The neuromuscular strategies employed to compensate for fatigue-induced muscle force deficits are not clearly understood. This study utilizes surface electromyography (sEMG) together with recordings of a population of individual motor unit action potentials (MUAPs) to investigate potential compensatory alterations in motor unit (MU) behavior immediately following a sustained fatiguing contracti...
متن کاملContralateral muscle activity and fatigue in the human first dorsal interosseous muscle.
During effortful unilateral contractions, muscle activation is not limited to the target muscles but activity is also observed in contralateral muscles. The amount of this associated activity is depressed in a fatigued muscle, even after correction for fatigue-related changes in maximal force. In the present experiments, we aimed to compare fatigue-related changes in associated activity vs. par...
متن کاملUlnar Nerve Conduction Study of the First Dorsal Interosseous Muscle in Korean Subjects
OBJECTIVE To derive normative values for ulnar nerve conduction study of the active recording electrode on the first dorsal interosseous muscle (FDI) and the reference electrode on the proximal phalanx of the thumb. METHOD Ulnar nerve motor conduction study with FDI and abductor digiti minimi muscle (ADM) recording was performed in 214 hands of 107 healthy subjects. Ulnar NCS was performed wi...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2016
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00097.2016