Trapezius muscle activity variation during computer work performed by individuals with and without neck-shoulder pain
| Autor: | Svend Erik Mathiassen, Divya Srinivasan, Denean M. Kelson |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Work medicine.medical_specialty Duration categories Physical Therapy Sports Therapy and Rehabilitation Human Factors and Ergonomics Electromyography 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Shoulder Pain Occupational Exposure Task Performance and Analysis medicine Humans 0501 psychology and cognitive sciences Safety Risk Reliability and Quality Engineering (miscellaneous) 050107 human factors Pain Measurement Neck Pain medicine.diagnostic_test business.industry 05 social sciences Work (physics) Muscle activation Computer users 030210 environmental & occupational health Upper trapezius muscle Occupational Diseases Computer Terminals Case-Control Studies Superficial Back Muscles Female Neck shoulder pain Trapezius muscle business |
| Zdroj: | Applied Ergonomics. 81:102908 |
| ISSN: | 0003-6870 |
| DOI: | 10.1016/j.apergo.2019.102908 |
| Popis: | This study aimed at determining the extent to which individuals with neck-shoulder pain and non-symptomatic individuals differ in muscle activation patterns, when performing computer work, as quantified by exposure variation analysis (EVA). As a secondary aim, we also aimed to quantify the day-to-day reliability of EVA variables describing trapezius muscle activation in a non-symptomatic control group. Thirteen touch-typing computer users (pain: n = 5, non-symptomatic: n = 8) completed three pre-selected computer tasks in the laboratory. Upper trapezius muscle activity was recorded using electromyography and analyzed using EVA with five amplitude and five duration categories. Individuals with neck-shoulder pain spent less time at low amplitudes and exhibited longer uninterrupted periods of muscle activation compared to their non-symptomatic counterparts. Thus, non-symptomatic workers tended to switch between exposure levels more often than individuals with pain. For a majority of EVA variables, ICCs ranged from 0.6 to 0.9, and between-days coefficients of variation were between 0.4 and 2.2. |
| Databáze: | OpenAIRE |
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