Abstract
This study aimed to eliminate "occupational back pain," one of the factors that causes nurses to take time off or quit their jobs, by using a portable posture measurement device that can be worn at all times during daily work, detecting dangerous forward leaning and twisting postures in real time, and sounding an alarm. We investigated the influence of a system that allows nurses to objectively assess their own posture on posture improvement. Five nurses performed the two-person bed-making procedure without a warning tone, the same procedure again after confirming the feedback, and finally the procedure with a warning tone after confirming the feedback. The results showed that feedback alone did not improve the forward lean angle, but the combined use of feedback and warning sound showed some improvement, although there were individual differences.