There was low- to very low- quality evidence that other interventions were not effective in reducing work-related upper limb and neck MSDs in adults .
We found moderate- quality evidence to suggest that the use of arm support with alternative mouse may reduce the incidence of neck/shoulder MSDs , but not right upper limb MSDs .
Moreover , we found moderate- quality evidence to suggest that the incidence of neck/shoulder and right upper limb MSDs is not reduced when comparing alternative and conventional mouse with and without arm support .
However , given there were multiple comparisons made involving a number of interventions and outcomes , high- quality evidence is needed to determine the effectiveness of these interventions clearly .
While we found very-low- to low- quality evidence to suggest that other ergonomic interventions do not prevent work-related MSDs of the upper limb and neck , this was limited by the paucity and heterogeneity of available studies .
BACKGROUND Work-related upper limb and neck musculoskeletal disorders ( MSDs ) are one of the most common occupational disorders around the world .
Although ergonomic design and training are likely to reduce the risk of workers developing work-related upper limb and neck MSDs , the evidence is unclear .
OBJECTIVES To assess the effects of workplace ergonomic design or training interventions , or both , for the prevention of work-related upper limb and neck MSDs in adults .
Predictors of Persistent Elbow Tendonitis Among Auto Assembly Workers
Introduction : Lateral and medial epicondylitis associated with work activity is a common upper extremity musculoskeletal disorder with a prevalence of 4–30 % depending upon the work setting and diagnostic criteria . The influence of treatment , ergonomic factors , medical history , psychosocial variables , and aging on the improvement of symptoms has not been well defined . Methods : This was a prospect i ve cohort study of a cohort of 45 workers with active elbow tendonitis for an average of 13 months .  Complete resolution of symptoms was the defined outcome measure . Results : The predictive factors for persistent elbow tendonitis included older age ( OR = 1.1 , 95 % CI : 0.99 , 1.33 ) , higher h and repetition level for their job(s ) ( OR = 2.5 , 95 % CI : 1.00 , 6.25 ) , more deviation from a neutral wrist position during the work activity ( OR = 2.0 , 95 % CI : 0.80 , 5.56 ) , and lower perceived decision authority on the job ( OR = 0.9 , 95 % CI : 0.79 , 0.98 ) . Other ergonomic , psychosocial , and electrophysiologic measures were not predictive . The models had relatively high sensitivity and specificity . Treatment effects could not be evaluated due to incomplete data available . Conclusions : Older workers with jobs requiring more repetition and awkward wrist postures , and less decision authority were less likely to have resolution of their elbow tendonitis . Implication s : Workers at highest risk for persistent elbow tendonitis should be placed at jobs with lower repetition levels and that use more neutral wrist postures . Effective interventions must address both the ergonomic and psychosocial risk factors in a multifaceted approach to this problem
There was low- to very low- quality evidence that other interventions were not effective in reducing work-related upper limb and neck MSDs in adults .
We found moderate- quality evidence to suggest that the use of arm support with alternative mouse may reduce the incidence of neck/shoulder MSDs , but not right upper limb MSDs .
Moreover , we found moderate- quality evidence to suggest that the incidence of neck/shoulder and right upper limb MSDs is not reduced when comparing alternative and conventional mouse with and without arm support .
However , given there were multiple comparisons made involving a number of interventions and outcomes , high- quality evidence is needed to determine the effectiveness of these interventions clearly .
While we found very-low- to low- quality evidence to suggest that other ergonomic interventions do not prevent work-related MSDs of the upper limb and neck , this was limited by the paucity and heterogeneity of available studies .
BACKGROUND Work-related upper limb and neck musculoskeletal disorders ( MSDs ) are one of the most common occupational disorders around the world .
Although ergonomic design and training are likely to reduce the risk of workers developing work-related upper limb and neck MSDs , the evidence is unclear .
OBJECTIVES To assess the effects of workplace ergonomic design or training interventions , or both , for the prevention of work-related upper limb and neck MSDs in adults .