Differences in myoelectric manifestations of fatigue during isometric muscle actions

Gawda, Piotr; Ginszt, Michał; Ginszt, Apolinary; Pawlak, Halina; Majcher, Piotr

doi:10.26444/aaem/81716

Cited by 7 publications

(7 citation statements)

References 26 publications

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“…Even though the literature 23 point to a higher incidence of muscle fatigue in isometric exercises, the absence of such phenomenon in the present study may be related to the time sets chosen for the static contractions. It is believed that 10 and 15 seconds of isometric exercises in the suprahyoid musculature of young women without speech-language-hearing complaint, even in three repetition series, do not deposit enough substrates inside the muscles to decrease the action potential MF.…”

Section: Discussionmentioning

confidence: 58%

“…Another factor that may have influenced it is the type of muscle fatigue analysis used in this study, as it was based on the simple behavior of the electromyographic MF signal 22 . The international literature 23 increasingly points to different approaches to muscle fatigue analysis, still trying to find which index best describes this phenomenon.…”

Section: Discussionmentioning

confidence: 99%

“…Particularly in isometric contractions, the median frequency values decrease, while the signal amplitude increases, which is interpreted as the recruitment of motor units. Both indicate muscle fatigue 22,23 .…”

Section: Introductionmentioning

confidence: 99%

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Tongue coupling as a therapeutic strategy: electromyographic analysis of different training approaches

et al. 2021

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Purpose: to compare the effect of two tongue coupling approaches on the electrical activity of the suprahyoid musculature in young women. Methods: the sample comprised 47 women aged 18 to 27 years, distributed into groups, according to exercise training time - 10 and 15 seconds. They answered an initial questionnaire and were submitted to speech-language-hearing clinical assessment, body mass index calculation, and electromyographic assessment. Two electrodes were positioned bilaterally on the skin in the region of the suprahyoid musculature to pick up the electromyographic signal. The women performed the tests with resting periods and maximum voluntary contraction, coupling the tongue with the hard palate as strongly as possible, followed by three training series coupling the tongue with the palate. The collected data regarding amplitude and frequency of the myoelectrical activity were analyzed, by comparing the performance within the two groups and one another with the Friedman and One-Way ANOVA tests, and Mann-Whitney U test, at the 5% significance level. Results: no statistical significance was observed between the groups when comparing their performance in the series, neither was there any decrease in the median frequency in each group while performing the three series. Conclusion: no effect on the electrical activity of the suprahyoid musculature was found in young women when they performed isometric tongue coupling exercise training.

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Section: Discussionmentioning

confidence: 58%

Section: Discussionmentioning

confidence: 99%

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Tongue coupling as a therapeutic strategy: electromyographic analysis of different training approaches

et al. 2021

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“…The study of individual peculiarities of kinematics and kinetics when performing 'non-standard' tests can be useful in coaching work for the development of individual training plans. Gawda et al have demonstrated that change in sEMG amplitude during isometric exercise could be related to muscles fatigue [17]. The use of various indices [18] and those based on sEMG amplitude, as an objective indicators of the efficacy of training process in athletes and motor programming phenomenon in humans requires further research.…”

Section: Discussionmentioning

confidence: 99%

Cyclic movement execution and its influence on motor programmess

Dornowski

Gorkovenko

Tomiak

et al. 2019

Ann Agric Environ Med.

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Objectives. The aim of this study was to discover the relationship between the performance of different mechanical movements of rowers, and define its effect on the motor programs of the cyclic movement in athletes living in rural and urban areas. Materials and method. Twenty-two male rowers participated in the experiment using a rowing ergometer (Concept2, USA). The experiment consisted of 3 tests examining the maximal power of the pull-ups (MPbpu). The movement mechanogram was registered with a specialized complex Noraxon's 3D MyoMotion (Noraxon Inc., USA). The software of the complex allowed calculation of the values of the joint angles from the accelerometer data. The Origin Lab 8.5 program was used for the mathematical and statistical processing of the signals from the mechanograms. Results. It was found that all experiment participants had a stepped controlled increase in the power of single bar pull-ups leading to a corresponding proportional increase in the frequency of rowing -test 1 and, conversely, a stepped controlled increase in the rowing frequency accompanied by a proportional increase in the power of the bar pull-ups -test 2. The involuntary dependence of the power and the rate was due to the peculiarities of the central cyclic movement programming, according to which the forces and durations of the active and passive bar pull-ups phases were interconnected and regulated together. The voluntary power-rate dependence control led to the breakdown of these links in the motor program of cyclic movements and to the separate control of these parameters. Conclusions.Motor programs in cyclic movement may be created in the same pattern in tope level sport and recreation, as well in different environmental conditions -gym halls (movement simulators), professional and recreational water sport tracks.

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“…Indirectly, fatigue and fatigability can be evaluated by means of dynamometers which measure the global muscular strength at rest and following efforts. Fatigue can also be directly quantified by global and kinetic surface EMG 12 especially by means of mathematical treatment of the EMG signal (area under the curve [AUC], spectral analysis, mean power frequency, and root mean square [RMS]).…”

Section: Introductionmentioning

confidence: 99%

External Anal Sphincter Fatigability: An Electromyographic and Manometric Study in Patients With Anorectal Disorders

Grasland

Turmel

Pouyau

et al. 2021

J Neurogastroenterol Motil

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Differences in myoelectric manifestations of fatigue during isometric muscle actions

Abstract: Change in sEMG amplitude during isometric exercise may be related to muscles fatigue. The use of fatigue indices, based on sEMG amplitude, as an objective indicator of the efficacy of an endurance training programme for sportsmen requires further research.

Cited by 7 publications

References 26 publications

Tongue coupling as a therapeutic strategy: electromyographic analysis of different training approaches

Tongue coupling as a therapeutic strategy: electromyographic analysis of different training approaches

Cyclic movement execution and its influence on motor programmess

External Anal Sphincter Fatigability: An Electromyographic and Manometric Study in Patients With Anorectal Disorders

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