 The proposed passive lower back exoskeleton provides both lumbar traction force and extension moment to reduce the compression force at L5 slash S1, which could be beneficial for patients suffering from lower back pain. The device was tested on 10 subjects who performed static holding and dynamic lifting tasks, and the results showed that the exoskeleton decreased the interverbal pressure and reduced erector spiny activation. This article was offered by Chyramoon, Django Bay, J1quac, and others.