There was limited evidence that computer keyboards with altered force displacement characteristics or altered geometry were effective in reducing carpal tunnel syndrome symptoms .
There was limited , but high quality , evidence that multi-disciplinary rehabilitation for non-specific musculoskeletal arm pain was beneficial for those workers absent from work for at least four weeks .
In adults with tenosynovitis there was limited evidence that modified computer keyboards were effective in reducing symptoms .
There was a lack of high quality evidence to inform workplace management of lateral epicondylitis .
BACKGROUND Upper limb pain is common among working-aged adults and a frequent cause of absenteeism .
AIMS To systematic ally review the evidence for workplace interventions in four common upper limb disorders .
The Effect of Alternate Style Keyboards on Severity of Symptoms and Functional Status of Individuals with Work Related Upper Extremity Disorders
There is evidence that performing job tasks involving repetition , vibration , sustained posture or forceful movement may contribute to symptoms of work related upper extremity disorders . Typing is one such activity ; symptoms that develop as a result of this activity can affect performance of work , self-care and leisure occupations . Studies investigating the impact of ergonomic keyboards on symptom reduction are limited , and little research exists regarding the reduction of key activation force as an intervention . Methods : This r and omized , prospect i ve study used a sample of 68 symptomatic workers employed by a single company . One group received a commercially available ergonomic keyboard , a second group used a modified version of the same keyboard design ed to reduce activation force , vibration and key travel . We measured symptoms and clinical signs , functional status , and device satisfaction in both groups over a six-month study period . Results : Between-groups analyses indicated that the groups performed similarly on the outcomes of interest . Repeated-measure analysis identified a reduction of symptoms , an improvement in functional status , preference for and increased satisfaction with the intervention keyboards , and maintenance of typing speed and accuracy for both groups . Conclusions
There was limited evidence that computer keyboards with altered force displacement characteristics or altered geometry were effective in reducing carpal tunnel syndrome symptoms .
There was limited , but high quality , evidence that multi-disciplinary rehabilitation for non-specific musculoskeletal arm pain was beneficial for those workers absent from work for at least four weeks .
In adults with tenosynovitis there was limited evidence that modified computer keyboards were effective in reducing symptoms .
There was a lack of high quality evidence to inform workplace management of lateral epicondylitis .
BACKGROUND Upper limb pain is common among working-aged adults and a frequent cause of absenteeism .
AIMS To systematic ally review the evidence for workplace interventions in four common upper limb disorders .