We found inconsistent evidence that the use of an arm support or an alternative mouse may or may not reduce the incidence of neck or shoulder MSDs .
For other physical ergonomic interventions there is no evidence of an effect .
For organisational interventions , in the form of supplementary breaks , there is very low- quality evidence of an effect on upper limb discomfort .
For training and multifaceted interventions there is no evidence of an effect on upper limb pain or discomfort .
BACKGROUND Work-related upper limb and neck musculoskeletal disorders ( MSDs ) are one of the most common occupational disorders worldwide .
Studies have shown that the percentage of office workers that suffer from MSDs ranges from 20 to 60 per cent .
The direct and indirect costs of work-related upper limb MSDs have been reported to be high in Europe , Australia , and the United States .
Although ergonomic interventions are likely to reduce the risk of office workers developing work-related upper limb and neck MSDs , the evidence is unclear .
This is an up date of a Cochrane Review which was last published in 2012 .
OBJECTIVES To assess the effects of physical , cognitive and organisational ergonomic interventions , or combinations of those interventions for the prevention of work-related upper limb and neck MSDs among office workers .
Effects of ergonomic intervention on work-related upper extremity musculoskeletal disorders among computer workers: a randomized controlled trial
Purpose The aim of the study was to determine effects of ergonomic intervention on work-related upper extremity musculoskeletal disorders ( WUEMSDs )  among computer workers . Methods Four hundred computer workers answered a question naire on work-related upper extremity musculoskeletal symptoms ( WUEMSS ) . Ninety-four subjects with WUEMSS using computers at least 3 h a day participated in a prospect i ve , r and omized controlled 6-month intervention . Body posture and workstation layouts were assessed by the Ergonomic Question naire . We used the Visual Analogue Scale to assess the intensity of WUEMSS . The Upper Extremity Function Scale was used to evaluate functional limitations at the neck and upper extremities . Health-related quality of life was assessed with the Short Form-36 . After baseline assessment , those in the intervention group participated in a multicomponent ergonomic intervention program including a comprehensive ergonomic training consisting of two interactive sessions , an ergonomic training brochure , and workplace visits with workstation adjustments . Follow-up assessment was conducted after 6 months . Results In the intervention group , body posture ( p < 0.001 ) and workstation layout ( p = 0.002 ) improved over 6 months ; furthermore , intensity ( p < 0.001 ) , duration ( p < 0.001 ) , and frequency ( p = 0.009 ) of WUEMSS decreased significantly in the intervention group compared with the control group . Additionally , the functional status ( p = 0.001 ) , and physical ( p < 0.001 ) , and mental ( p = 0.035 ) health-related quality of life improved significantly compared with the controls . There was no improvement of work day loss due to WUEMSS ( p > 0.05 ) . Conclusions Ergonomic intervention programs may be effective in reducing ergonomic risk factors among computer workers and consequently in the secondary prevention of WUEMSDs
We found inconsistent evidence that the use of an arm support or an alternative mouse may or may not reduce the incidence of neck or shoulder MSDs .
For other physical ergonomic interventions there is no evidence of an effect .
For organisational interventions , in the form of supplementary breaks , there is very low- quality evidence of an effect on upper limb discomfort .
For training and multifaceted interventions there is no evidence of an effect on upper limb pain or discomfort .
BACKGROUND Work-related upper limb and neck musculoskeletal disorders ( MSDs ) are one of the most common occupational disorders worldwide .
Studies have shown that the percentage of office workers that suffer from MSDs ranges from 20 to 60 per cent .
The direct and indirect costs of work-related upper limb MSDs have been reported to be high in Europe , Australia , and the United States .
Although ergonomic interventions are likely to reduce the risk of office workers developing work-related upper limb and neck MSDs , the evidence is unclear .
This is an up date of a Cochrane Review which was last published in 2012 .
OBJECTIVES To assess the effects of physical , cognitive and organisational ergonomic interventions , or combinations of those interventions for the prevention of work-related upper limb and neck MSDs among office workers .