Table 3

Mechanism of nail gun injuries among union residential carpenters, 1999–2002

MechanismFrequency (%)Descriptions
Struck by/against76 (95)Hit by nail from tool (n=70; includes 1 eye injury)
Hit by debris from nail (n=4; eye injuries)
Hit by gun (n=2; tool recoil and dropped)
Fall from height1 (1)Leaning over to nail gutter board from roof
Repetitive activity2 (3)Developed carpal tunnel syndrome in dominant arm; carpenter attributed to use of framing nailer and associated awkward wrist postures. Forearm strain; attributed to use of tool overhead with difficult trigger safety mechanism
Overexertion1 (1)Strained back when picked up tool from ground