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 .
Can a New Behaviorally Oriented Training Process to Improve Lifting Technique Prevent Occupationally Related Back Injuries Due to Lifting?
Study Design . A prospect i ve r and omized control trial . Objective . To determine the degree to which a new behavior-based lift training program ( LiftTrainer ™ ; Ascension Technology , Burlington , VT ) could reduce the incidence of  low back disorder in distribution center jobs that require repetitive lifting . Summary of Background Data . Most studies show programs aim ed at training lifting techniques to be ineffective in preventing low back disorders , which may be due to their conceptual rather than behavioral learning approach . Methods . A total of 2144 employees in 19 distribution centers were r and omized into either the LiftTrainer ™ program or a video control group . In the LiftTrainer ™ program , participants were individually trained in up to 5 , 30-minute sessions while instrumented with motion capture sensors to quantify the L5/S1 moments . Twelve months following the initial training , injury data were obtained from company records . Results . Survival analyses ( Kaplan-Meier ) indicated that there was no difference in injury rates between the 2 training groups . Likewise , there was no difference in the turnover rates . However , those with a low ( < 30 Nm ) average twisting moment at the end of the first session experienced a significantly ( P < 0.005 ) lower rate of low back disorder than controls . Conclusions . While overall the LiftTrainer ™ program was not effective , those with twisting moments below 30 Nm reported fewer injuries , suggesting a shift in focus for “ safe ” lifting programs
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 .