The document discusses body mechanics and proper lifting techniques for healthcare workers. It defines body mechanics as the efficient, coordinated use of the body to move objects and perform daily activities. The key principles of body mechanics are maintaining a low center of gravity by bending the knees, keeping a wide base of support with the feet, and keeping the line of gravity vertical over the base of support. Proper lifting technique requires squatting close to the object, keeping the back straight, pulling the load close to the body, and using the legs to lift rather than the back. Following principles of good posture, balance, and engaging the core and leg muscles can help prevent injuries for healthcare workers.