The reflex responses of single motor units in human first dorsal interosseous muscle following cutaneous afferent stimulation.
نویسندگان
چکیده
منابع مشابه
Changes 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...
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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:...
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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 کاملThe effect of afferent stimuli on steadily discharging single motor units in man.
The effect of afferent stimuli on the firing pattern of single motor units has been studied in the human first dorsal interosseous muscle of the hand. A reproducible series of changes in the probability of motor unit firing was seen. There was evidence for an excitatory spinal reflex involving median nerve muscle afferent fibres and ulnar nerve motor fibres. Cutaneous and muscle afferent pathwa...
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Our aim was to investigate the jaw reflexes using both the probability- and the discharge rate-based analysis methods. Twelve consenting volunteer subjects participated in this study. Subjects bit gently on bite bars that carried the impression of their teeth. Surface and intramuscular electrical activity of the masseter was recorded. With the help of audio feedback from one motor unit, each su...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1980
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1980.sp013290