Final answer:
The act of facing the object or person while lifting or carrying is called Body mechanics. It ensures safety and efficiency by aligning the body properly and maintaining balance to prevent injury.
Step-by-step explanation:
Facing the object or person you are lifting or carrying is referred to as Body mechanics. This practice is crucial for maintaining balance and preventing injury while lifting heavy objects.
Good body mechanics involve positioning your body in a way that is both safe and efficient, which often includes facing the object directly, keeping the spine aligned, and using the legs to lift, rather than the back.
For instance, when a person lifts a heavy load, like carrying books or lifting a child, they adjust their stance to maintain balance, keeping their center of gravity (cg) positioned over their base of support, such as their feet.
This is well demonstrated when a person carries a load balanced on their head, requiring that the center of mass of the load be directly above the person's neck vertebrae to maintain stability and prevent strain.