VDT‐related musculoskeletal symptoms: Interactions between work posture and psychosocial work factors

Abstract

Video display terminal (VDT) operators (n = 150) in the editorial department of a large metropolitan newspaper participated in a study of day-to-day musculoskeletal symptoms. Work posture related to the VDT workstation and psychosocial work factors were also investigated for their contributions to the severity of upper body pain, numbness, and stiffness using a representative subsample (n = 70). Self-report measures included Karasek's Job Content Instrument and the author-designed Work Interpersonal Relationships Inventory. Independent observations of work posture were performed using techniques similar to those reported by Sauter et al. [1991]. Pain during the last week was reported by 59% (n = 88) of the respondents, and 28% (n = 42) were categorized by symptom criteria potentially to have musculoskeletal disorders. More hours per day of VDT use and less decision latitude on the job were significant risk factors for potential musculoskeletal CTDs. Head rotation and relative keyboard height were significantly related to more severe pain and stiffness in the shoulders, neck, and upper back. Lower levels of co-worker support were associated with more severe hand and arm numbness. For both the region of the shoulders, neck, and upper back and the hand and arm region, however, the contributions of relative keyboard and seat back heights to symptom severity were modified by psychological workload, decision latitude, and employee relationship with the supervisor. Alternative explanations for these findings are discussed.

Prevalence Rate of Postural Damages, Disorders and Anomalies Among Computer Users

“…These rates are lower than those found in the present study [19]. In another investigation conducted on 150 computer users in San Francisco (the U.S.), a significant correlation was found between the hours of using computer, limited choice at work, and musculoskeletal diseases [20]. This is similar to the finding of our research since university student computer users also referred to the constant use of computer as the main reason for musculoskeletal disorders.…”

Principles for the wise use of computers by children

“…There is some longitudinal evidence to suggest that low back pain during childhood is a risk factor for low back pain in adulthood (Harreby et al 1995). Whilst computer-related musculoskeletal discomfort is also prevalent higher up in the spinal column and in the upper extremities (Hu¨nting et al 1981, Faucett and Rempel 1994, Bergqvist et al 1995, Sillanpa¨a¨et al 2003, similar principles are likely to apply.…”

Visual Display Terminal Use Increases the Prevalence and Risk of Work‐related Musculoskeletal Disorders among Chinese Office Workers: A Cross‐sectional Study

“…Rossignol et al 27) found that individuals who had 7 or more hours of daily VDT use had a significantly elevated odds ratio for musculoskeletal complaints in comparison with nonusers. Faucett and Rempel 28) reported an odds ratio of 1.44 (95% CI=1.03-1.99) for the association between hours of daily VDT use and potential upper torso disorders. Polanyi et al 16) reported that after adjusting for confounders including demographic, ergonomic and psychosocial factors, individuals who 15) .…”