Pneumatic Nail Guns Revisiting Trigger Recommendations

摘要

Work-related musculoskeletal disorders among carpenters and other construction workers are a genuine concern. Additional research is needed on risk factors such as forceful exertions, repetitive movements and awkward postures associated with construction tasks and nail gun use irrespective of the triggering mechanisms used. However, at present, no evidence shows that the SAT differentially increases risk of developing trigger finger or any other work-related musculoskeletal disorder. In contrast, overwhelming epi-demiologic evidence indicates that the CAT trigger mechanism increases the risk of unintentional nail discharge and associated injuries, and that the SAT trigger mechanism provides a positive safety advantage. Given the current state of evidence regarding traumatic and cumulative trauma injury risks in construction, "the full sequential trigger is always the safest trigger mechanism for the job" (NIOSH/OSHA, 2011, p. 6).