Limited evidence was also found for a causal relationship between  computer work per se and computer mouse time related to tension neck syndrome , but the evidence for keyboard time was insufficient .
Insufficient evidence was found for an association between other musculoskeletal diagnoses of the neck and upper extremities , including shoulder tendonitis and epicondylitis , and any aspect of computer work .
Conclusions There is limited epidemiological evidence for an association between aspects of computer work and some of the clinical diagnoses studied .
Background This review examines the evidence for an association between  computer work and neck and upper extremity disorders ( except carpal tunnel syndrome ) .
The Effect of an Ergonomic Intervention on Musculoskeletal, Psychosocial and Visual Strain of VDT Data Entry Work: The United States Part of the International Study
The United States MEPS ( musculoskeletal — eyestrain — psychosocial — stress ) study consisted of 1 group of 28 female data entry operators . The intervention was in 3 parts : workstation re design ( including advanced ergonomic chairs , motorized adjustable workstations , advanced adjustable keyboards , adjustable copyholders , adjustable footrests , monitor support surfaces ) and ergonomic training/coaching and corrective lenses . After the intervention , statistically significant reductions in physical signs ( trigger points , neck and shoulder mobility ) , subjective reports of intensity and frequency of musculoskeletal pain , and subjective reports of visual problems were observed . Static load during the work sample , as assessed by experts , improved after the intervention as did measured postural angles of head and trunk and subjective assessment of users of ergonomic characteristics of the workplaces . For all of these measures , improvements observed 1 month after intervention were also observed in the 1-year follow-up . Trapezius load , as assessed by electromyography ( EMG ) , decreased after intervention , but then increased in the follow-up . The increase was interpreted as a calibration problem
Limited evidence was also found for a causal relationship between  computer work per se and computer mouse time related to tension neck syndrome , but the evidence for keyboard time was insufficient .
Insufficient evidence was found for an association between other musculoskeletal diagnoses of the neck and upper extremities , including shoulder tendonitis and epicondylitis , and any aspect of computer work .
Conclusions There is limited epidemiological evidence for an association between aspects of computer work and some of the clinical diagnoses studied .
Background This review examines the evidence for an association between  computer work and neck and upper extremity disorders ( except carpal tunnel syndrome ) .