Finger movement is associated with attenuated cutaneous reflexes recorded from human first dorsal interosseous muscle
نویسندگان
چکیده
منابع مشابه
Contralateral 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...
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The aim of this study was to examine the mechanomyogram (MMG) and force relationship of the first dorsal interosseous (FDI) muscle as well as the biceps brachii (BB) muscle during voluntary isometric ramp contractions, and to elucidate the MMG responses resulting from the intrinsic motor unit (MU) activation strategy of FDI muscle with reference to the MMG of BB muscle. The subjects were asked ...
متن کاملA study of fatiguing isometric contractions of the human first dorsal interosseous muscle.
Surface e lec t romyogram (EMG) f rom musc les undergoing sus ta ined i somet r ic voluntary contractions has been well studied. Power spect ra l analys is of the myoelect r ic signals so obtained, characteristically shows a t ime dependant sh i f t of the mean power f requency to lower f requenc ies , as the contraction proceeds (1). Such a compression of the EMG power spec t rum to lower freq...
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 کاملChanges in motor unit behavior following isometric fatigue of the first dorsal interosseous 1 muscle
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:...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 2002
ISSN: 0022-3751,1469-7793
DOI: 10.1113/jphysiol.2002.023846