Results 211 to 220 of about 6,997,439 (256)

AN ACTIVE EMG-CONTROLLED A/K PROSTHESIS

IFAC Proceedings Volumes, 1982
Abstract A pressure reservoir in conjunction with a pneumatic piston and cylinder is employed to conserve a portion of the energy dissipated during swing phase by conventional A/K actuators. During the portion of the swing cycle when energy is to be supplied at the knee, the pressure reservoir serves as driver.
D.R. Myers, G.D. Moskowitz
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Is there a ‘normal’ profile of EMG activity in gait?

Medical & Biological Engineering & Computing, 1986
The aim of the present study was to validate the notion that there is a normal profile for electromyographic (EMG) signals in gait. For eight subjects, surface electrodes were used to record signals over ten strides from the soleus, rectus femoris, biceps femoris, vastus medialis and tibialis anterior muscles.
A B, Arsenault, D A, Winter, R G, Marteniuk   +2 more
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EMG activity of pigeon oesophagus in vivo

Archives Internationales de Physiologie et de Biochimie, 1982
At rest, the pigeon cervical oesophagus, which is entirely smooth muscle, shows electric activity. This activity consists of bursts of spikes with frequency increasing in the oral-aboral direction. The bursts are un-phase locked, and there are no slow waves (E.C.A.). The surgical transection of the oesophageal muscular wall does not affect the electric
S, Abbadessa Urso, R, Fileccia, A, Postorino, M C, Gambino, F, Mule, R, Serio   +5 more
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A new detection method for EMG activity monitoring

Medical & Biological Engineering & Computing, 2019
This paper introduces a new approach for electromyography (EMG) activity monitoring based on an improved version of the adaptive linear energy detector (ALED), a widely used technique in voice activity detection. More precisely, we propose a modified ALED technique (named M-ALED) to improve the method's robustness with respect to noise. To achieve this
Hichem Bengacemi, Karim Abed-Meraim, Olivier Buttelli, Abdelaziz Ouldali, Ammar Mesloub   +4 more
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Thinking activates EMG in scalp electrical recordings

Clinical Neurophysiology, 2008
Fast electrical rhythms in the gamma range (30-100Hz) in scalp (but not intracranial) recordings are predominantly due to electromyographic (EMG) activity. We hypothesized that increased EMG activity would be augmented by mental tasks in proportion to task difficulty and the requirement of these tasks for motor or visuo-motor output.EEG was recorded in
Pope, Kenneth, Whitham, Emma Mary, Lewis, Trent Wilson, Fitzgibbon, Sean Patrick, Loveless, Stephen James, Clark, Christopher Richard, DeLosAngeles, Dylan, Wallace, Angus Keith, Broberg, I Marita, Willoughby, John Osborne   +9 more
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A new electronic device for quantitation of EMG activity

Electroencephalography and Clinical Neurophysiology, 1981
A description is given of a new electronic device capable of analysing and converting the EMG response in a small volume of muscle in such a way that two output signals are obtained: one as an analogue voltage proportional to the instantaneous firing rate, the other as a number of impulses counted in a preselectable measurement-time window.
B, Klemar, E, Pedersen, J, Tørring
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Viscosity effects on EMG activity in normal swallow

Dysphagia, 1994
This study investigated the effects of six consistencies on measures of swallow duration, muscle activity, and sound. Electromyographic (EMG) recordings of the submental and infrahyoid muscle complexes, and audio recordings of neck sounds were made while 5 normal subjects swallowed two foods in each of three consistency categories: liquid, thin paste ...
L, Reimers-Neils, J, Logemann, C, Larson
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EMG normalization to study muscle activation in cycling

Journal of Electromyography and Kinesiology, 2008
The value of electromyography (EMG) is sensitive to many physiological and non-physiological factors. The purpose of the present study was to determine if the torque-velocity test (T-V) can be used to normalize EMG signals into a framework of biological significance.
Rouffet, David, Hautier, Christophe
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Psychophysiological stress and emg activity of the trapezius muscle

International Journal of Behavioral Medicine, 1994
Although it is generally assumed that mental stress induces muscular tension, the experimental data have, so far, been inconclusive. Likely explanations for these inconsistent findings are (a) too small subject samples in some experiments, (b) the use of only one type of stress stimulation, and (c) the lack of objective (physiological) measurements ...
U, Lundberg, R, Kadefors, B, Melin, G, Palmerud, P, Hassmen, M, Engstrom, I E, Dohns   +6 more
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Determining MUAP activity corridor in scanning EMG recordings

2015 International Symposium on Innovations in Intelligent SysTems and Applications (INISTA), 2015
In scanning EMG recordings there are more than one motor unit activity which is recorded by concentric needle electrode. Especially for determining features of a motor unit action potential (MUAP) such as phase duration and number of peaks easily, first the other motor unit activities must be discarded.
N. Tugrul Artug, Imran Goker, Bülent Bolat, Mehmet Baris Baslo, Onur Osman   +4 more
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