Manual handling refers to any activity that requires using force to lift, lower, push, pull, carry or move objects. It is important to know about proper manual handling techniques because back injuries are very common, costly, and can limit daily activities. Some common causes of back injuries include heavy lifting, twisting while lifting, reaching overhead, and maintaining awkward positions. Proper lifting techniques such as planning the lift, keeping the load close to the body, and avoiding excessive bending and twisting can help prevent injuries.