Detection of muscle fatigue caused by repeated posterior tongue lift movement from neck surface EMG: a pilot study

2021 ◽  
Author(s):  
Hiroshi Furutera ◽  
Shigehisa Kawakami ◽  
Naoki Kodama ◽  
Yosuke Manda ◽  
Keisuke Kitagawa ◽  
...  
Keyword(s):  
Pilot Study ◽  
Muscle Fatigue ◽  
Surface Emg ◽  
Lift Movement ◽  
Posterior Tongue

Intramuscular and surface electromyogram changes during muscle fatigue

1986 ◽  
Vol 60 (4) ◽  
pp. 1179-1185 ◽  
Author(s):  
T. Moritani ◽  
M. Muro ◽  
A. Nagata
Keyword(s):  
Muscle Fatigue ◽  
Biceps Brachii ◽  
Surface Emg ◽  
Firing Frequency ◽  
Voluntary Contraction ◽  
Mean Power ◽  
Mean Power Frequency ◽  
Surface Electromyogram ◽  
Spike Amplitude ◽  
Frequency Power

Twelve male subjects were tested to determine the effects of motor unit (MU) recruitment and firing frequency on the surface electromyogram (EMG) frequency power spectra during sustained maximal voluntary contraction (MVC) and 50% MVC of the biceps brachii muscle. Both the intramuscular MU spikes and surface EMG were recorded simultaneously and analyzed by means of a computer-aided intramuscular spike amplitude-frequency histogram and frequency power spectral analysis, respectively. Results indicated that both mean power frequency (MPF) and amplitude (rmsEMG) of the surface EMG fell significantly (P less than 0.001) together with a progressive reduction in MU spike amplitude and firing frequency during sustained MVC. During 50% MVC there was a significant decline in MPF (P less than 0.001), but this decline was accompanied by a significant increase in rmsEMG (P less than 0.001) and a progressive MU recruitment as evidenced by an increased number of MUs with relatively large spike amplitude. Our data suggest that the surface EMG amplitude could better represent the underlying MU activity during muscle fatigue and the frequency powers spectral shift may or may not reflect changes in MU recruitment and rate-coding patterns.

scholarly journals Simple surface EMG recording as a noninvasive screening method for the detection of acute oxaliplatin-induced neurotoxicity: a feasibility pilot study

2019 ◽  
Vol 699 ◽  
pp. 184-188 ◽  
Author(s):  
Sandra A.S. van den Heuvel ◽  
Jonne Doorduin ◽  
Monique A.H. Steegers ◽  
Ewald M Bronkhorst ◽  
Sandra A Radema ◽  
...  
Keyword(s):  
Pilot Study ◽  
Screening Method ◽  
Surface Emg ◽  
Simple Surface
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