Publication: Analysis of neck and shoulder postures, and muscle activities relative to perceived pain during laptop computer use at a low-height table, sofa and bed
2
0
Issued Date
2019
Resource Type
File Type
application/pdf
ISSN
10519815
Other identifier(s)
2-s2.0-85069446948
Rights Holder(s)
Scopus
Bibliographic Citation
Work. Vol 63, No.3 (2019), p.361-367
Suggested Citation
Intolo P., Shalokhon B., Wongwech G., Wisiasut P., Nanthavanij S., Baxter D.G. Analysis of neck and shoulder postures, and muscle activities relative to perceived pain during laptop computer use at a low-height table, sofa and bed. Work. Vol 63, No.3 (2019), p.361-367. doi:10.3233/WOR-192942 Retrieved from: https://hdl.handle.net/20.500.14740/5541
Abstract
BACKGROUND: Laptop computers are used in various places and situations. The number of laptop users experiencing musculoskeletal disorders (MSDs) has increased drastically due to, in part, inappropriate workstations. OBJECTIVE: To investigate the neck and shoulder postures, and muscle activity relative to perceived pain when using the laptop at a low-height table, sofa, and bed. METHODS: Twenty male participants aged 18-25 years were randomly assigned to perform laptop computer operation at 3 workstations for 10 minutes during which neck and shoulder angles, muscle activity, and pain were recorded by using an Electrogoniometer, Electromyography (EMG), and visual analog scale (VAS), respectively. RESULTS: Neck flexions when working at the sofa (18.6°±12.2°) and bed (17.2°±10.5°) were significantly (p<0.05) greater than that at the low-height table (7.8°±6.5°). However, shoulder flexion when working at the low-height table (28.2°±13.0°) was significantly (p<0.05) greater than that at the sofa (13.8°±8.6°) and bed (10.91°±7.8°). Working at the low-height table caused the shoulder flexor muscle activity to be significantly (p<0.05) higher than working at the sofa and bed. Neck pain was reported during laptop computer use at the sofa and bed, and upper back pain when working at the low-height table. CONCLUSIONS: High neck flexion and pain were found while working at sofa and bed, whereas high muscle activity at shoulder and upper back pain were found while working at the low-height table. © 2019 - IOS Press and the authors. All rights reserved.
Subject(s)
Adolescent
Adult
Analysis of variance
Biomechanics
Body position
Complication
Computer interface
Electromyography
Female
Furniture
Human
Male
Musculoskeletal disease
Neck
Pain
Physiology
Procedures
Psychology
Shoulder
Adolescent
Adult
Analysis of Variance
Biomechanical Phenomena
Electromyography
Female
Humans
Interior Design and Furnishings
Male
Musculoskeletal Diseases
Neck
Pain
Posture
Shoulder
User-Computer Interface
Adult
Analysis of variance
Biomechanics
Body position
Complication
Computer interface
Electromyography
Female
Furniture
Human
Male
Musculoskeletal disease
Neck
Pain
Physiology
Procedures
Psychology
Shoulder
Adolescent
Adult
Analysis of Variance
Biomechanical Phenomena
Electromyography
Female
Humans
Interior Design and Furnishings
Male
Musculoskeletal Diseases
Neck
Pain
Posture
Shoulder
User-Computer Interface