Variable innervation of the first dorsal interosseous muscle: an electrophysiological study
نویسندگان
چکیده
منابع مشابه
A 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 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...
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 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 کاملMechanomyographic responses during voluntary ramp contractions of the human first dorsal interosseous muscle
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of Translational Medicine
سال: 2020
ISSN: 2305-5839,2305-5847
DOI: 10.21037/atm-20-1466