The Influence of Neuroticism on the Muscle Response in the Trapezius and Frontalis Muscles to Anticipatory Stress

Abstract. Objective quantification of mental stress in the workplace would be beneficial for designing work tasks to avoid the negative consequences of mental stress. Methods such as surface electromyography have proven to be sensitive to mental demands. However, there is little knowledge about the muscle response and moderating factors during anticipatory stress paradigms. This study examined whether the personality dimension neuroticism moderates the muscle response to the expectation of an unpredictable electrical shock. Forty-seven subjects underwent three expectation phases, in which they could expect a pleasant audio signal (NoShock) or an electric shock in two conditions (anticipation of the first: Shock1, and second electric shock: Shock2) at an unpredictable moment. The frontalis muscle activity and the upper and upper/middle parts of the trapezius muscle were recorded using surface electromyography. Neuroticism was surveyed using the Big Five Inventory to assign the subjects to a group with lower or higher neuroticism. Shock1 only induced higher trapezius muscle activity in the higher neuroticism group, which vanished during Shock2, while the frontalis muscle showed no significant effects. The results suggest that neuroticism should be considered a moderating factor in assessing anticipatory stress using surface electromyography at the trapezius muscle.

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Amplitude and Frequency Analysis of Pelvic Limb Muscle Activity during a Trot in Normal, Healthy Dogs Using Surface Electromyography

10.1055/s-0040-1712885 ◽

2020 ◽

Author(s):

Welsh PJ ◽

Martinez SA ◽

Thompson DJ ◽

Ching JK ◽

Gilbert PJ

Keyword(s):

Frequency Analysis ◽

Muscle Activity ◽

Surface Electromyography ◽

Limb Muscle ◽

Pelvic Limb ◽

Healthy Dogs

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Clinical Use of Surface Electromyography to Track Acute Upper Extremity Muscle Recovery after Stroke: A Descriptive Case Study of a Single Patient

Applied System Innovation ◽

10.3390/asi4020032 ◽

2021 ◽

Vol 4 (2) ◽

pp. 32

Author(s):

Heather A. Feldner ◽

Christina Papazian ◽

Keshia M. Peters ◽

Claire J. Creutzfeldt ◽

Katherine M. Steele

Keyword(s):

Muscle Activity ◽

Surface Electromyography ◽

Inpatient Rehabilitation ◽

Stroke Survivor ◽

Structured Interview ◽

Routine Care ◽

Stroke Recovery ◽

Descriptive Case Study ◽

Sensing Technology

Arm recovery varies greatly among stroke survivors. Wearable surface electromyography (sEMG) sensors have been used to track recovery in research; however, sEMG is rarely used within acute and subacute clinical settings. The purpose of this case study was to describe the use of wireless sEMG sensors to examine changes in muscle activity during acute and subacute phases of stroke recovery, and understand the participant’s perceptions of sEMG monitoring. Beginning three days post-stroke, one stroke survivor wore five wireless sEMG sensors on his involved arm for three to four hours, every one to three days. Muscle activity was tracked during routine care in the acute setting through discharge from inpatient rehabilitation. Three- and eight-month follow-up sessions were completed in the community. Activity logs were completed each session, and a semi-structured interview occurred at the final session. The longitudinal monitoring of muscle and movement recovery in the clinic and community was feasible using sEMG sensors. The participant and medical team felt monitoring was unobtrusive, interesting, and motivating for recovery, but desired greater in-session feedback to inform rehabilitation. While barriers in equipment and signal quality still exist, capitalizing on wearable sensing technology in the clinic holds promise for enabling personalized stroke recovery.

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Analysis of Muscle Activity Using Surface Electromyography for Muscle Performance in Manual Lifting Task

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.564.644 ◽

2014 ◽

Vol 564 ◽

pp. 644-649 ◽

Cited By ~ 1

Author(s):

Halim Isa ◽

Rawaida ◽

Seri Rahayu Kamat ◽

A. Rohana ◽

Adi Saptari ◽

...

Keyword(s):

Muscle Activity ◽

Surface Electromyography ◽

Biceps Brachii ◽

Twist Angle ◽

Erector Spinae ◽

Manual Lifting ◽

Experienced Fatigue ◽

Left And Right ◽

Lifting Task ◽

Load Mass

In industries, manual lifting is commonly practiced even though mechanized material handling equipment are provided. Manual lifting is used to transport or move products and goods to a desired place.Improper lifting techniquescontribute to muscle fatigue and low back pain that can lead to work efficiency and low productivity.The objective of this study were to analyze muscle activity in the left and right Erector Spinae, and left and right Biceps Brachii of five female subjects while performing manual lifting taskwithdifferent load mass, lifting height and twist angle.The muscle activitywere measured and analyzed using surface electromyography (sEMG).This study found that the right Biceps Brachii, right and left Erector Spinae experienced fatigue while performingasymmetric lifting (twist angle = 90°) at lifting height of 75 cm and 140 cm with load mass of 5 kg and 10 kg. Meanwhile, the left Biceps Brachii experienced fatigue when the lifting task was set at lifting height of 75 cm, load mass of 5 kg and twist angle of 90°.The load mass and lifting height has a significant influence to Mean Power Frequency (MPF) for left Biceps Brachii, left and right Erector Spinae. This study concluded that reducing the load mass can increase the muscles performance which can extend the transition-to-fatigue stage in the left and right Biceps Brachii and Erector Spinae.

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Changes in shoulder muscle activity pattern on surface electromyography after breast cancer surgery

Journal of Surgical Oncology ◽

10.1002/jso.24800 ◽

2017 ◽

Vol 117 (2) ◽

pp. 116-123 ◽

Cited By ~ 4

Author(s):

Eun Joo Yang ◽

YoungOk Kwon

Keyword(s):

Breast Cancer ◽

Muscle Activity ◽

Activity Pattern ◽

Surface Electromyography ◽

Cancer Surgery ◽

Breast Cancer Surgery ◽

Shoulder Muscle

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Difference between Right and Left Facial Surface Electromyography in Healthy People

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2018/4069530 ◽

2018 ◽

Vol 2018 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Bo-Hyun Kim ◽

Kyeong Han Kim ◽

Lak-Hyung Kim ◽

Jong-Uk Kim ◽

Tae-Han Yook

Keyword(s):

Surface Electromyography ◽

Nerve Palsy ◽

Facial Nerve Palsy ◽

Asymmetry Index ◽

Healthy People ◽

Mean Square ◽

Frontalis Muscle ◽

Significant Difference ◽

Orbicularis Oris Muscle ◽

Age And Sex

Introduction. The study was to see whether there were differences in values of facial surface electromyography in subjects of good heath by muscles, age, and sex. Methods. It draws ratio between lower value and higher value (R-LV/HV) and asymmetry index (AI), based on root mean square (RMS) from measurement of facial surface electromyography (sEMG) in 154 people of healthy people (male:female = 70:84) aging between more than 20 and less than 70. Results. For R-LV/HV, it averages 81.70±14.60% on frontalis muscle, 73.74±19.12% on zygomaticus muscle, and 79.72±14.77% on orbicularis oris muscle. With analysis of the AI average was 10.87±10.14% on frontalis muscle, 16.71±14.79% on zygomaticus muscle, and 12.10±10.05% on orbicularis oris muscle. Both values were statistically significant in three parts of muscles as shown. Both of R-LV/HV and AI show no statistically significant difference on age and sex (p>0.05). Conclusions. It could provide basic data for the future diagnosis of facial nerve palsy patients by measuring facial sEMG values for healthy people.

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Light Sleep Detection based on Surface Electromyography Signals for Nap Monitoring

International Journal of Biology and Biomedical Engineering ◽

10.46300/91011.2022.16.18 ◽

2022 ◽

Vol 16 ◽

pp. 140-145

Author(s):

Wachiraporn Aiamklin ◽

Yutana Jewajinda ◽

Yunyong Punsawad

Keyword(s):

Surface Electromyography ◽

Sleep Stage ◽

Low Cost ◽

Trapezius Muscle ◽

Sleep Stages ◽

Upper Trapezius ◽

Emg Signal ◽

Power Frequency ◽

Upper Trapezius Muscle ◽

Waking Up

This paper proposes the development of automatic sleep stage detection by using physiological signals. We aim to develop an application to assist drivers after drowsiness or fatigue detection by a commercial driver vigilance system. The proposed method used a low-cost surface electromyography (EMG) device for sleep stage detection. We investigate skeletal muscle location and EMG features from sleep stage 2 to provide an EMG-based nap monitoring system. The results showed that using only one channel of a bipolar EMG signal from an upper trapezius muscle with median power frequency can achieve 84% accuracy. We implement a MyoWare muscle sensor into the proposed nap monitoring device. The results showed that the proposed system is feasible for detecting sleep stages and waking up the napper. A combination of EMG and electroencephalogram (EEG) signals might be yield a high system performance for nap monitoring and alarm system. We will prototype a portable device to connect the application to a smartphone and test with a target group, such as truck drivers and physicians.

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Motion Analytics of Trapezius Muscle Activity in an 18-Year-Old Female with Extended Upper Brachial Plexus Birth Palsy

Journal of Brachial Plexus and Peripheral Nerve Injury ◽

10.1055/s-0041-1731748 ◽

2021 ◽

Vol 16 (01) ◽

pp. e51-e55

Author(s):

Jasmine J. Lin ◽

Gromit Y.Y. Chan ◽

Cláudio T. Silva ◽

Luis G. Nonato ◽

Preeti Raghavan ◽

...

Keyword(s):

Brachial Plexus ◽

Upper Extremity ◽

Muscle Activity ◽

Visual Analytics ◽

Three Dimensional ◽

Trapezius Muscle ◽

Shoulder Abduction ◽

Upper Trapezius ◽

Brachial Plexus Birth Palsy ◽

Birth Palsy

Abstract Background The trapezius muscle is often utilized as a muscle or nerve donor for repairing shoulder function in those with brachial plexus birth palsy (BPBP). To evaluate the native role of the trapezius in the affected limb, we demonstrate use of the Motion Browser, a novel visual analytics system to assess an adolescent with BPBP. Method An 18-year-old female with extended upper trunk (C5–6–7) BPBP underwent bilateral upper extremity three-dimensional motion analysis with Motion Browser. Surface electromyography (EMG) from eight muscles in each limb which was recorded during six upper extremity movements, distinguishing between upper trapezius (UT) and lower trapezius (LT). The Motion Browser calculated active range of motion (AROM), compiled the EMG data into measures of muscle activity, and displayed the results in charts. Results All movements, excluding shoulder abduction, had similar AROM in affected and unaffected limbs. In the unaffected limb, LT was more active in proximal movements of shoulder abduction, and shoulder external and internal rotations. In the affected limb, LT was more active in distal movements of forearm pronation and supination; UT was more active in shoulder abduction. Conclusion In this female with BPBP, Motion Browser demonstrated that the native LT in the affected limb contributed to distal movements. Her results suggest that sacrificing her trapezius as a muscle or nerve donor may affect her distal functionality. Clinicians should exercise caution when considering nerve transfers in children with BPBP and consider individualized assessment of functionality before pursuing surgery.

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