When carrying a load of cassettes down a long hallway, what should be done to keep the line of gravity close to the center of gravity?

Keeping the load close to the body while carrying cassettes helps to maintain the line of gravity close to the center of gravity, which is crucial for stability and reducing the risk of injury. When the center of gravity of the load is aligned with the body's center of gravity, it minimizes the mechanical stress on joints and muscles, making it easier to maintain balance and control. This technique enables the individual to exert less effort and decreases the likelihood of strain during transportation.

While spreading the load evenly or using center weight distribution can be beneficial for stability, those methods do not directly address the importance of alignment with the body's center of gravity as effectively as maintaining the load close to the body does. Keeping a load overhead increases the distance from the body's center of gravity and can lead to fatigue and difficulty in movement. Ultimately, positioning the load appropriately is key to safe and efficient transport, which is why keeping it close to the body is the best practice.