Electrically-induced muscle fatigue affects feedforward mechanisms of control

Monjo, Florian; Forestier, Nicolas

doi:10.1016/j.clinph.2014.10.218

Cited by 9 publications

(7 citation statements)

References 56 publications

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“…There have been a variety of approaches used to study muscle fatigue [17][18][19][20][21]. This study used a triaxial accelerometer to measure changes in muscle contractile speeds as an indication of muscle fatigue.…”

Section: Discussionmentioning

confidence: 99%

Endurance of the Dorsal and Ventral Muscles in the Neck

Liss

Sanni

McCully

2020

JFMK

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Endurance of the muscles of the neck are rarely studied. This study measured the endurance index (EI) of the sternocleidomastoid (SCM) and upper trapezius muscles of the neck (trap). The vastus lateralis (VL) was used for comparison. Skeletal muscle endurance of twelve healthy subjects, age 19–22 years, were tested on their SCM and trap in random order on one day, VL was tested on a separate day. Participants were tested in the supine position for the SCM and VL muscles and the prone position for the trap. Muscle contractions consisted of a 5 Hz twitch electrical stimulation for 5 min. Muscle acceleration (resultant vector) was measured using a triaxial accelerometer. EI was the ending acceleration as a percentage of the maximal acceleration. The endurance index (EI) for the SCM, trap, and VL was 42.3 ± 13.0%, 42.3 ± 20.2%, and 92.9 ± 11.0%, respectively. The EI of the VL was significantly higher than the EI of the SCM (t(2,22) = 10.33, p < 0.001) and the trap (t(2,22) = 7.625, p < 0.001). The EI was not different between the SCM and the trap muscle (t(2,22) = 0.004, p = 0.997). In conclusion, the neck muscles had much less endurance than the muscles in the leg and could make fatigued athletes more susceptible to concussions caused by head impacts.

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Section: Discussionmentioning

confidence: 99%

Endurance of the Dorsal and Ventral Muscles in the Neck

Liss

Sanni

McCully

2020

JFMK

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“…Depending on the nature of the contraction, it appeared that muscle fatigue of the quadriceps led to different postural control strategies (Paillard, Maitre, et al, 2010). In other works, motor adaptations seemed to be impaired under externally-induced muscle fatigue Monjo & Forestier, 2014c). The main illustration of this impairment comes from the study of .…”

Section: The Particular Case Of Externally Generated Muscle Fatiguementioning

confidence: 95%

“…This clearly indicates the difficulty of the CNS to integrate and/or to interpret these particular fatigue signals to compensate muscle fatigue effects. In a recent work, Monjo and Forestier (2014c) used the self-paced arm flexion task in the aim to evaluate the feedforward postural strategies employed in the presence of an electrically-evoked focal muscle fatigue. Like in Monjo and Forestier (2014b), participants had to flex their arms as fast as possible.…”

Section: The Particular Case Of Externally Generated Muscle Fatiguementioning

confidence: 99%

Muscle fatigue as an investigative tool in motor control: A review with new insights on internal models and posture–movement coordination

Monjo

Terrier

Forestier

2015

Human Movement Science

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“…As described by Cram, surface recording electrodes were placed over the muscles [37] while the ground electrode was placed on the ipsilateral wrist.…”

Section: Electrodes: Integral Dry Reusable Electrodes (Sx230 Biometricsmentioning

confidence: 99%

“…The pair of normalized RMS and MPF slopes was displayed in 2D JASA plots, while their changes over time were plotted along the x-and y-axis, respectively. The following 4 classes illustrated the results of their JASA plots [37]:…”

Section: Introductionmentioning

confidence: 99%

Assessment of Upper Trapezius Muscle Fatigue in Subclinical Myofascial Pain Syndrome Participants Versus Healthy Control by JASA Method

Mehdikhani¹,

Hadian²,

Hadian³

et al. 2022

J Med Res Surg

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Background: Myofascial trigger points are most commonly occurs in the upper trapezius, which is the highest sensitive muscle in the body. Joint Analysis of Electromyography (EMG) Spectrum and Amplitude (JASA) method was applied to evaluate the occurrence of muscular fatigue during consecutive gripping exertions. Methods: 64 right handed subjects took part in this study. Prior to the fatigue test, the maximal voluntary contraction was measured three times. A force gauge was used for force measurement while recording with a monitor. Measurement was initiated with a Maximum Voluntary Contraction (MVC) force of the trapezius. Results: After accomplishing fatigue protocol, they showed signs of exhaustion; however, they were not subjectively evaluated for fatigue. As the protocol aimed at assessing muscle fatigue, a force level of 80% MVC was induced. Conclusion: As revealed by the plots, the lower left quadrant could be defined as having an ‘‘force reduction’’ rather than a ‘‘fatigue’’ trait based on the natural pushing up characteristics based at the JASA plot definition, muscle fatigue or force reduction become manifested by way of above 90% of the 20 dots after fatigue test. Through the JASA method, researchers could gain insight in to the muscular fatigue condition as well as the possible underlying mechanisms.

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Electrically-induced muscle fatigue affects feedforward mechanisms of control

Cited by 9 publications

References 56 publications

Endurance of the Dorsal and Ventral Muscles in the Neck

Endurance of the Dorsal and Ventral Muscles in the Neck

Muscle fatigue as an investigative tool in motor control: A review with new insights on internal models and posture–movement coordination

Assessment of Upper Trapezius Muscle Fatigue in Subclinical Myofascial Pain Syndrome Participants Versus Healthy Control by JASA Method

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