Muscle responses to simulated torque reactions of hand-held power tools

摘要

The aim of this work was to investigate physiological responses to torque reaction forces produced by hand-held power tools used to tighten threaded fasteners. Such tools are used repetitively by workers in many industries and are often Associated with upper limb musculoskeletal complaints. The tools considered for Stimulation in this study had straight handles and required from 100 to 400 ms to Tighten fasteners to a peak torque of 1.0 to 2.5 Nm and from 50 to 150 ms for the Torque to decay to zero.