scholarly journals The effect of work-related sustained trapezius muscle activity on the development of neck and shoulder pain among young adults

2013 ◽  
Vol 39 (4) ◽  
pp. 390-400 ◽  
Author(s):  
Therese N Hanvold ◽  
Morten Wærsted ◽  
Anne Marit Mengshoel ◽  
Espen Bjertness ◽  
Hein Stigum ◽  
...  
Keyword(s):  
Young Adults ◽  
Shoulder Pain ◽  
Muscle Activity ◽  
Trapezius Muscle ◽  
Work Related ◽  
Neck And Shoulder Pain

scholarly journals Can a metric combining arm elevation and trapezius muscle activity predict neck/shoulder pain? A prospective cohort study in construction and healthcare

2020 ◽  
Author(s):  
Suzanne Lerato Merkus ◽  
Svend Erik Mathiassen ◽  
Lars-Kristian Lunde ◽  
Markus Koch ◽  
Morten Wærsted ◽  
...  
Keyword(s):  
Shoulder Pain ◽  
Muscle Activity ◽  
Healthcare Workers ◽  
Trapezius Muscle ◽  
Upper Trapezius ◽  
Neck And Shoulder Pain ◽  
Upper Trapezius Muscle ◽  
Arm Elevation ◽  
Uncertain Time

Abstract Objective To determine whether a composite metric of arm elevation and trapezius activity (i.e. neck/shoulder load) is more strongly associated with the 2-year course of neck and shoulder pain intensity (NSPi) among construction and healthcare workers than each exposure separately. Methods Dominant arm elevation and upper trapezius muscle activity were estimated in construction and healthcare employees (n = 118) at baseline, using accelerometry and normalized surface electromyography (%MVE), respectively. At baseline and every 6 months for 2 years, workers reported NSPi (score 0–3). Compositions of working time were determined for arm elevation (< 30°; 30–60°;  > 60°), trapezius activity (< 0.5%; 0.5–7.0%; > 7.0%MVE), and a composite metric “neck/shoulder load” (restitution, low, medium, and high load). Associations between each of these three compositions and the 2-year course of NSPi were determined using linear mixed models. Results Associations between exposure compositions and the course of NSPi were all weak and in general uncertain. Time spent in 0.5–7.0%MVE showed the largest and most certain association with changes in NSPi during follow-up (β = − 0.13; p = 0.037; corresponding to a −0.01 change in NPSi every 6 months). Among pain-free workers at baseline, medium (β = − 0.23; p = 0.039) and high (β = 0.15; p = 0.031) neck/shoulder load contributed the most to explaining changes in NSPi. Conclusion The composite metric of neck/shoulder load did not show a stronger association with the course of NSPi than arm elevation or trapezius activity alone in the entire population, while some indications of a stronger association were found among those who were pain-free at baseline.

Trapezius muscle activity, neck and shoulder pain, and subjective experiences during monotonous work in women

2000 ◽  
Vol 83 (2-3) ◽  
pp. 235-238 ◽  
Author(s):  
Leif Sandsj� ◽  
Bo Melin ◽  
Dag Riss�n ◽  
Ingela Dohns ◽  
Ulf Lundberg
Keyword(s):  
Shoulder Pain ◽  
Muscle Activity ◽  
Trapezius Muscle ◽  
Subjective Experiences ◽  
Neck And Shoulder Pain

The Influence of Neck–Shoulder Pain on Trapezius Muscle Activity among Professional Violin and Viola Players: An Electromyographic Study

2002 ◽  
Vol 17 (2) ◽  
pp. 68-75 ◽  
Author(s):  
Patrice Berque ◽  
Heather Gray
Keyword(s):  
Musculoskeletal Disorders ◽  
Shoulder Pain ◽  
Muscle Activity ◽  
Trapezius Muscle ◽  
Electromyographic Activity ◽  
Experimental Conditions ◽  
Work Related ◽  
Upper Trapezius ◽  
Shoulder Region ◽  
And Performance

Work-related musculoskeletal disorders in the neck-shoulder area are common among violin and viola players. The aim of this study was to investigate the influence of playing-related musculoskeletal disorders (PRMDs) on muscle activity, by measuring electromyographic activity in the upper trapezius (UT) muscles of violin and viola players under three experimental conditions: rest, performance of an easy piece, and performance of a difficult piece. Ten professional violin and viola players from a Scottish orchestra volunteered to take part in the study. Five subjects complained of pain in the neck-shoulder region; five were pain-free. Bilateral surface electromyography (EMG) was used, following submaximal reference voluntary contractions, to record the muscle activity of the UT muscles during the three experimental conditions. Subjects were randomly allocated to the conditions. A four-factor balanced analysis of variance (ANOVA) was performed. The results revealed that the pain-free subjects developed more UT muscle activity than subjects experiencing neck-shoulder pain (F = 4.07, df = 1, p = 0.05). Furthermore, the subjects developed significantly more UT activity when progressing from the rest condition to performance of the difficult piece (F = 36.64, df = 2, p> < 0.001). The PRMD subjects developed more UT activity than the pain-free subjects at rest. The opposite tendency was observed for the playing conditions. However, the results were not statistically significant for this interaction (F = 1.85, df = 2, p = 0.169). The results suggest that redistribution of the load to other synergistic muscles may be a strategy used by PRMD subjects to alleviate pain or discomfort at the nec-shoulder area. The voluntary monitoring of shoulder muscle activity may be of great importance in the prevention of PRMDs in viola and violin players.

scholarly journals Long periods with uninterrupted muscle activity related to neck and shoulder pain

Work ◽  
2012 ◽  
Vol 41 ◽  
pp. 2535-2538 ◽  
Author(s):  
Therese N Hanvold ◽  
Morten Wærsted ◽  
Kaj Bo Veiersted
Keyword(s):  
Shoulder Pain ◽  
Muscle Activity ◽  
Neck And Shoulder Pain

Predictive Factors for Neck and Shoulder Pain: A Longitudinal Study in Young Adults

Spine ◽  
2004 ◽  
Vol 29 (15) ◽  
pp. 1662-1669 ◽  
Author(s):  
Sari M. Siivola ◽  
Sinikka Levoska ◽  
Kirsi Latvala ◽  
Erika Hoskio ◽  
Heikki Vanharanta ◽  
...  
Keyword(s):  
Young Adults ◽  
Longitudinal Study ◽  
Shoulder Pain ◽  
Predictive Factors ◽  
Neck And Shoulder Pain

A Pilot Study on Work-Related Neck-Shoulder Pain among Sewing Machine Operators

2013 ◽  
Vol 471 ◽  
pp. 167-171 ◽  
Author(s):  
R. Nawawi ◽  
Baba Md Deros ◽  
Dian Darina Indah Daruis ◽  
A. Ramli ◽  
R. Md Zein
Keyword(s):  
Risk Factors ◽  
Shoulder Pain ◽  
High Speed ◽  
Musculoskeletal Symptoms ◽  
Survey Questionnaire ◽  
Sewing Machine ◽  
Work Related ◽  
Machine Operators ◽  
Neck And Shoulder Pain ◽  
High Work

Prevalence of neck-shoulder pain among sewing machine operators is well known. It may be due to the nature and incorrect posture used by sewing machine operators while performing sewing work. However, up till now there is no empirical evidence that can be used to relate the risk factors that would results towards the development of neck and shoulder pain among sewing machine operators. The main objective of this study is to identify and investigate the risk factors that result in neck and shoulder pain among Malaysian sewing machine operators. Twenty female sewing machine operators took part in answering a survey questionnaire to investigate the prevalence of neck and shoulder pain among sewing machine operators. The survey questionnaire was divided into five sections: socio-demographic, work background, workload information, physical exposures and physical musculoskeletal symptoms experienced by workers. Having done that, sewing machine operators who have been screened with neck and/or shoulder pain was evaluated with Rapid Upper Limb Assessment (RULA) to determine the level of workplace risk factors. Subjects without neck and/or shoulder pain were excluded. Results of the study shows that all sewing operators were expose to risk of prolonged sitting, repetitive task and working at high speed. Ninety five percent of sewing machine operators had experienced neck and/or shoulder pain and 80% of them were exposed to high work risk factors that require them to undergo further investigation. Shoulder pain was found to be strongly correlated with high work risk factor among sewing machine operators (p<0.05). In conclusion, occurrence of shoulder pain among sewing operators is due to posture and nature of sewing work.

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