EMG of upper trapezius − Electrode sites and association with clavicular kinematics

Zanca, Gisele Garcia; Oliveira, Ana Beatriz; Ansanello, Walter; Barros, Fernanda Cabegi de; Mattiello, Stela Márcia

doi:10.1016/j.jelekin.2014.06.012

Cited by 17 publications

(15 citation statements)

References 24 publications

(49 reference statements)

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“…Resistance was applied against shoulder abduction and head lateral flexion (Ekstrom et al, 2005;Zanca et al, 2014) Clavicular portion of upper trapezius 20% lateral to the midpoint between C3 and the most lateral point of the clavicle (Zanca et al, 2014) Lower trapezius 2/3 on the line from scapular root spine and T8 spinous process (Hermens et al, 2000) Prone position, with the arm in abduction, aligned with the muscle fibers. Resistance was applied in the direction of the floor (Ekstrom et al, 2005) Serratus anterior On the level of xiphoid process, in the lateral trunk, in a 45°angle from anterior to posterior direction (Anders et al, 2004) Seated position, arm at 90°of flexion and resistance applied against scapular protraction (Ekstrom et al, 2005) anatomical coordinate systems, following the International Society of Biomechanics (ISB) recommendations (Wu et al, 2005).…”

Section: Acromial Portion Of Upper Trapeziusmentioning

confidence: 99%

“…The 30 Hz cutoff was used in order to reduce heart muscle electrical activity contamination in the EMG signal (Drake and Callaghan, 2006). Band-stop filters were applied at 60 Hz and harmonics, in order to reduce the main noise artifact originated from the electromagnetic tracking system (Hsu et al, 2009;Zanca et al, 2014).…”

Section: Data Reductionmentioning

confidence: 99%

“…Root mean square (RMS) EMG was calculated using a 20-ms moving window with 50% overlap (Zanca et al, 2014). EMG signal recorded during the rest trials was used for noise calculation.…”

Section: Data Reductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Kinesio taping on scapular kinematics of overhead athletes following muscle fatigue

Zanca

Grüninger

Mattiello

2016

Journal of Electromyography and Kinesiology

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Section: Acromial Portion Of Upper Trapeziusmentioning

confidence: 99%

Section: Data Reductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Kinesio taping on scapular kinematics of overhead athletes following muscle fatigue

Zanca

Grüninger

Mattiello

2016

Journal of Electromyography and Kinesiology

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“…The trapezius muscle is flat and wide, involving the cervical and thoracic spine, including the first two thoracic vertebrae, the ACJ and the posterior edge of the distal third of the clavicle [49]. The trapezius has a fundamental role in the movements of scapula and clavicle, which is brought back and raised during muscular contraction (especially with the abduction of the arm), due to the indirect action on the sternoclavicular joint [55].…”

Section: The Third Phase: the Patient Being Supinementioning

confidence: 99%

“…The shoulder passive movements (involving the clavicle) let us perceive if there are movement restrictions or pain [55]. The clavicle is able not only to transmit the mechanical stresses laterally (sternum, scapula and chest), but also medially (to the soft tissue structures such as muscles, viscera and vascular-nervous brachial plexus) [61].…”

Section: The Third Phase: the Patient Being Supinementioning

confidence: 99%

New Proposal of Evaluation of the Thoracic Outlet

Bordoni¹,

Marelli²,

Bruno³

et al. 2018

OJTR

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The present article comprehensively reviews the thoracic outlet syndrome (TOS), its etiology and assessment, with reference to the usual conservative treatment and surgical therapy, highlighting new definitions and reporting obsolete tests. The syndrome affects about 8% of the population, with higher prevalence in females, and rarely affects the children. Conservative, non-surgical treatment produces good results, and it becomes important to know which specific areas need to be treated. Currently, there is no rehabilitation scheme, either osteopathic or chiropractic, considered as a valid tool for a precise localization of the pathologic condition, probably due to the lack of a manual assessment process to evaluate bones and muscular components of the thoracic outlet. In this situation, the manual treatment performed is usually generic. The present article proposes a manual evaluation that can be used to identify the anatomical area which needs to be treated. This hypothesis of assessment should be carried out after the clinician has ruled out the necessity of surgery with instrumental examinations.

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Impact of Ergonomics on Muscle Fatigue During Surgical Drilling Using Surface Electromyography

Joo,

Formeister,

Pozin

et al. 2024

Otolaryngol.--head neck surg.

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ObjectiveTo investigate the relationship between ergonomic positions and electromyographic muscle activity during otologic drilling.Study DesignCross‐over experimental trial.SettingTertiary Academic Medical Center.MethodsSurgeon participants were tasked with delicate eggshell drilling in 3 different seated positions: “neutral,” “slouched,” and “craned.” Surface electromyography (sEMG) sensors recorded the amplitude and frequency of muscle activity. The joint analysis of spectrum and amplitude (JASA) method, which combines temporal trends in frequency and amplitude, was used to identify trials that exhibited patterns of fatigue.ResultsThe sEMG amplitude and frequency responses demonstrated wide temporal changes. In a majority of experiments, amplitude increased over the course of the experiment, while frequency remained more stable. On analysis of variance testing, only the mean frequency of the deltoid differed significantly between postures (P = .02). Under the JASA framework, external carpi radialis and upper trapezius experienced fatigue in nearly half of the trials regardless of position (47% vs 49%). The upper trapezius demonstrated fatigue during 46% and 69% of the “craned” and “slouched” trials, respectively, compared to just 31% of the “neutral” trials. Fewer attendings demonstrated upper trapezius fatigue compared to trainees (33% vs 62%). Female surgeons experienced fatigue in more trials than male counterparts (73% vs 25%).ConclusionThis study highlights a first step in quantifying the relationship between operating postures and muscle fatigue. Results suggest that specific muscle groups are more susceptible to fatigue; gender and experience may also impact muscle activity.

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EMG of upper trapezius − Electrode sites and association with clavicular kinematics

Cited by 17 publications

References 24 publications

Effects of Kinesio taping on scapular kinematics of overhead athletes following muscle fatigue

Effects of Kinesio taping on scapular kinematics of overhead athletes following muscle fatigue

New Proposal of Evaluation of the Thoracic Outlet

Impact of Ergonomics on Muscle Fatigue During Surgical Drilling Using Surface Electromyography

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