Using a laptop computer for work: musculoskeletal disorders and the functional characteristics of the neck in comparison with the users of desktop computers

Abstract

Background Using a laptop for work is gaining rapid popularity, but there is little evidence of how it influences musculoskeletal disorders (MSD) and functional characteristics of the neck and shoulder area. The aim of this study was to compare the prevalence of upper body MSDs and functional characteristics of the neck between office workers using a laptop or desktop computer. Methods A total of 110 office workers with a mean age of 41 ± 10 participated. From them 45 office workers (73% female) used a laptop and 65 office workers (86% female) desktop computers. The prevalence of MSDs was recorded using the Nordic Musculoskeletal Questionnaire. Active range of motion (AROM), maximal voluntary isometric contraction (MVC) force, joint position error (JPE), and pain-pressure threshold (PPT) of the neck were measured. Results Laptop users had statistically significantly more MSDs in the right shoulder area on the day of participation (p < 0.001, OR = 4.47), during the previous 7 days (p < 0.01, OR = 3.74) and 6 months (p < 0.01, OR = 3.57). Laptop users had also significantly more MSDs in the left shoulder during the previous 7 days (p < 0.05, OR = 2.44). Desktop computer users had more MSDs in the low back during the previous 6 months (p < 0.05, OR = 2.24). There were no statistically significant differences in any of the functional characteristics of the neck between the groups. Conclusions Using the laptop computer for office work can cause a higher chance of developing MSDs in the neck and shoulder area, but might not have a long-term effect on the functional characteristics of the neck.